#linuxcnc | Logs for 2014-09-27

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[00:08:50] <andypugh> I was in an awkward catch-22 with the Ner-a-Car. I need a registration number, and a registration number needs a chassis number. It turns out that you can apply for both at the same time, but the vehicle needs to be insured. Without a registration number or chassis number, bow do you define what vehicle the insurance policy applies to?
[00:09:33] <Jymmm> You can get insurance without even owning a car.
[00:10:23] <andypugh> _I_ can. But that doesn’t mean that the vehicle is insured…
[00:11:18] <andypugh> (and in practice, in the UK, the only “driver policies” are for the motor trade only.
[00:11:30] <Jymmm> ah
[00:12:21] <andypugh> Eventually I found a company who would insure against the engine number until the other numbers were issued.
[00:12:43] <andypugh> I guess that means that any vehicle I put that engine in is now insured.
[00:12:54] <Jymmm> lol
[00:13:42] <Jymmm> No, only the engine is insured, the car is screwed=)
[00:13:50] <andypugh> Hmm, Given that the engine mounts with 4 bolts, and has an integral magneto, so will happily run anwhere it is, that suggests interesting possibilies.
[00:15:48] <Tom_itx> andypugh, you should have visited this when you were here: http://tom-itx.ddns01.com:81/~webpage/cnc/local_stock/stock_index.php
[00:15:58] <ssi> JT-Shop: around?
[00:16:47] <andypugh> Tom_itx: Might have been spendy in excess baggage
[00:16:56] <Tom_itx> true
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[00:17:55] <andypugh> <anecdote> My dad once more than doubled his transatlantic air fair with excess baggage. $2000 for one suitcase with a broken-off gear tooth in it.
[00:18:50] <Tom_itx> they used to have alot more 'old' surplus there
[00:18:50] <andypugh> (The suitcase was only just long enough, and it filled 25% of the volume)
[00:18:58] <Jymmm> Roll of duct tape... $5
[00:19:00] <Tom_itx> you could easily spend the day just looking around
[00:19:20] <Tom_itx> now most of that is gone
[00:19:47] <zeeshan|2> andypugh: have you done work in matlab
[00:19:49] <zeeshan|2> w/ image processing|?
[00:20:20] <andypugh> I have spent most of this week making a light switch. The Ner-a-Car light switch is something special: ar/lighting_switch.htm
[00:20:27] <andypugh> zeeshan|2: A bit
[00:20:45] <andypugh> Not a huge amount.
[00:20:58] <Tom_itx> bad link
[00:21:09] <zeeshan|2> its driving me insane
[00:21:13] <zeeshan|2> i have these processed images
[00:21:13] <andypugh> http://www.geutskens.eu/neracar/lighting_switch.htm
[00:21:21] <zeeshan|2> that are logical type. i convert them to uint8
[00:21:25] <zeeshan|2> and trying to use movie to play em
[00:21:28] <zeeshan|2> but it keeps spitting errors a t me
[00:21:49] <andypugh> Are you using the image processing toolbox, or working on the raw data?
[00:21:49] <zeeshan|2> :P
[00:21:53] <zeeshan|2> raw data
[00:22:12] <ssi> cradek: did you ever get inside your turret on the hnc at all?
[00:22:19] <andypugh> I am guessign that the error messages are not suffciently informative?
[00:22:28] <zeeshan|2> Error using hgMovie Indexed movie frame must have a non-empty colormap
[00:22:28] <ssi> cradek: the big seal that rides against the inside of the turret is failing on mine, coming apart in chunks
[00:22:35] <zeeshan|2> so it looks like i dont have a colormap for each frame
[00:22:38] <zeeshan|2> er each image
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[00:23:05] <andypugh> Are you actually looking at a movie file, or individual frames?
[00:23:20] <zeeshan|2> individual frames
[00:23:28] <zeeshan|2> basically i load up a movie
[00:23:30] <zeeshan|2> do some processing
[00:23:35] <zeeshan|2> and now im trying to spit a movie back out
[00:23:45] <zeeshan|2> after i do the processing, it only gives me images
[00:23:50] <Tom_itx> SPDT?
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[00:24:33] <andypugh> zeeshan|2: Have you tried googling the error message, in quotes. That’s all I ever do. Of course that sometimes ends up in the “DenverCoder” scenario: http://xkcd.com/979/
[00:24:52] <zeeshan|2> ROFL
[00:24:57] <zeeshan|2> that seems to happen a lot
[00:25:01] <zeeshan|2> it's like you've reach the end of the internet
[00:25:11] <zeeshan|2> game over
[00:25:37] <ssi> heh you know what's worse
[00:25:42] <ssi> googling a problem, and the only thing you can find about it
[00:25:48] <ssi> is yourself
[00:25:51] <ssi> in an irc log
[00:25:52] <ssi> in here
[00:26:02] <ssi> that happens to me a lot :(
[00:26:03] <zeeshan|2> ROFL
[00:26:13] <zeeshan|2> thats happened to me too
[00:26:20] <zeeshan|2> randomly linuxcnc channel pops up
[00:26:49] <ssi> so the turret was working for a second
[00:26:58] <ssi> but it was out of phase with the tool number
[00:27:06] <ssi> and so I was dicking with the encoder trying to get the timing right
[00:27:16] <andypugh> I had a funnier one. I was wondering if the UK version of the US “Cinder block” which is normally called a “Breeze Block” ought to really be called a “Breize Block” as “Brieze” was a term historically for furnace ash. And I found a definitive answer. Written 10 years earlier. By myself.
[00:27:18] <ssi> and it started missing all its toolchanges
[00:27:28] <ssi> and then I noticed that pieces of seal were coming out from under the turret
[00:27:46] <ssi> andypugh :D
[00:28:00] <ssi> so now I'm trying to get an idea of how to take this thing apart properly to replace this seal
[00:28:04] <ssi> and what it's gonna cost
[00:28:21] amnesic is now known as amnesic_away
[00:28:23] <ssi> the jackwagon who sold me the lathe (and nickle&dimed me to death over parts and tooling) has one up for sale for FIFTY DOLLARS
[00:28:28] <ssi> I'm sure it's even more than that from hardinge
[00:28:40] <ssi> thinking if I can get some appropriate material, I can laser cut a gasket
[00:29:25] <SpeedEvil> andypugh: I do that occasionally too :)
[00:29:43] <SpeedEvil> andypugh: 'Oh - this answer seems awfully well written and knowledgabe' ... fuck
[00:30:07] <andypugh> A friend has had his HXL turret apart after his hand-fettled LinuxCNC changer went wild and killed it.
[00:30:21] <ssi> onoes
[00:30:37] <SpeedEvil> Tool-changing at 5000RPM?
[00:30:41] <ssi> andypugh: roger moore?
[00:30:54] <andypugh> That’s the guy
[00:30:56] <ssi> :)
[00:31:07] <ssi> googled HXL, a vid with "linuxcnc" in the title came up
[00:31:11] <ssi> and it's a brit
[00:31:14] <ssi> how many can there be? :D
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[00:32:20] <ssi> ooh he's got a fancy panel
[00:32:35] <andypugh> He has written a completly custom g-screen based Lathe GUI. I keep poking him to share it.
[00:32:47] <ssi> I'd like to see that
[00:32:52] <ssi> actually I'd like to pick his brain on a few things
[00:33:02] <ssi> talk him into becoming an irc junkie :)
[00:33:17] <andypugh> Have you seen his work? Crikey: http://www.f1-2000.co.uk/index.php?f=conrods
[00:33:48] <ssi> oh wow
[00:33:50] <ssi> crikey indeed
[00:34:35] <Tom_itx> that's an awfully big match
[00:34:36] <Tom_itx> ;D
[00:34:37] <andypugh> Thread-milling M2 threads!
[00:36:47] <ssi> the man does some first rate work
[00:38:39] <andypugh> zeeshan|2: I tried to Google variants on your error message, I got nothing. Which is pretty remarkable.
[00:38:48] <zeeshan|2> haha
[00:38:52] <zeeshan|2> i'm trying to do a workaround
[00:38:54] <zeeshan|2> im so close!!
[00:39:05] <andypugh> Have you tried Matlab fora?
[00:39:24] <ssi> zeeshan|2: http://www.f1-2000.co.uk/index.php?f=hardinge_hxl
[00:39:24] <zeeshan|2> fora? no
[00:39:28] <ssi> that's the kind of truck I need!
[00:39:34] <SpeedEvil> http://www.f1-2000.co.uk/index.php?f=fuel_injectors
[00:39:37] <SpeedEvil> holy fuck
[00:39:45] <zeeshan|2> yea dude!
[00:40:03] <andypugh> ssi: He is working now on a DLP printer for patterns. It’s all linear slides, ballscrews and servos. He doesn’t mess about.
[00:40:26] <ssi> apparently!
[00:41:27] <ssi> " I can now precision bore diameters as small as 0.2 mm (200 microns!)."
[00:41:35] <ssi> ...
[00:41:38] <Tom_itx> where did he get the dimension data i wonder
[00:41:51] <andypugh> I am more impressed with him making his own O-rings :-)
[00:43:08] <ssi> yeah that's nuts
[00:43:36] <andypugh> ssi: Horn Boring bars are great. I scored these in eBay recently: https://picasaweb.google.com/lh/photo/Nsaiddo8vrB0_JZHB2LuGdMTjNZETYmyPJy0liipFm0?feat=directlink
[00:44:20] <ssi> wow nice haul
[00:44:23] <ssi> they're all solid carbide?
[00:45:15] <andypugh> yeah. They cost real money (£80) but list price is £25 each and there are 50
[00:45:25] <ssi> yeah that's a steal
[00:45:42] <ssi> http://www.f1-2000.co.uk/index.php?f=micro_holes
[00:45:43] <ssi> holy...
[00:45:58] <andypugh> And they cut incredibly nicely.
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[00:47:11] <zeeshan|2> andypugh:
[00:47:11] <zeeshan|2> http://imgur.com/a/0lYeK
[00:47:14] <zeeshan|2> thats kind of what im doing
[00:47:35] <zeeshan|2> i just need to capture one corner of that star
[00:47:41] <zeeshan|2> or whatever you call this shape :P
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[00:48:19] <zeeshan|2> i just wish it'd show as a damn movie
[00:48:45] <andypugh> zeeshan|2: Welcome to http://xkcd.com/1425/
[00:49:03] <zeeshan|2> haha
[00:49:40] <andypugh> In 20 years I will be able to hold entire conversations in xkcd URLS
[00:49:49] <ssi> andypugh: :D
[00:49:56] <zeeshan|2> clearly someone has been spending to omuch time not working :P
[00:50:57] <ssi> zeeshan|2: have any insight into my gasket dilemma?
[00:51:09] <zeeshan|2> sorry i was workin lol
[00:51:19] <andypugh> The only url I actually know without checking is www.xkcd.com/123
[00:51:29] <ssi> zeeshan|2: http://connecticut.backpage.com/ToolsForSale/classifieds/EnlargeImage?oid=6879943&image=6879932
[00:51:43] <ssi> bastard wants $50 for it
[00:51:43] <zeeshan|2> what does that gasket do
[00:51:49] <ssi> that's a very good question
[00:51:53] <zeeshan|2> is it a seal
[00:51:54] <zeeshan|2> for a shaft?
[00:52:06] <zeeshan|2> http://www.rparts.com/adnl-info/Bitzer/seal_close-up.JPG
[00:52:07] <zeeshan|2> like that
[00:52:08] <ssi> it sits in a groove on the turret base, and the turret rides against it
[00:52:12] <ssi> I can take some pics of it
[00:52:17] <zeeshan|2> okay so its a dynamic seal
[00:52:38] <andypugh> It looks semi-standard
[00:52:40] <ssi> I don't know that it's actually sealing anything
[00:52:47] <zeeshan|2> it must be!
[00:52:49] <ssi> I should dig out the books
[00:52:50] <zeeshan|2> if its theree lol
[00:52:56] <andypugh> It may be to keep swarf out
[00:53:02] <ssi> yeah I think that's probably right
[00:53:16] <zeeshan|2> ssi the best resource for finding what kind of seal it is
[00:53:19] <zeeshan|2> if you have a busted one
[00:53:19] <andypugh> Try taking one to your local seal shop
[00:53:27] <zeeshan|2> you can compare the crossection w/ the parker master handbook
[00:53:31] <ssi> it seems to be two thicknesses
[00:53:36] <ssi> and right now I don't have it out
[00:53:41] <ssi> the bottom one is falling apart
[00:53:52] <ssi> lemme get some pics and drag the books upstears
[00:55:45] <andypugh> Take a tip from Roger, simply machine a mould and make your own seals :-)
[00:56:05] <ssi> well not far from that
[00:56:10] <ssi> I can buy a sheet of cork and laser cut it
[00:56:39] <ssi> which is exactly what I'm likely to do given hardinge's prices
[00:56:44] <ssi> as well as ron najaka :P
[00:56:48] <ssi> $50 for a damn gasket
[00:57:26] <ssi> https://pbs.twimg.com/media/BygD2nXIIAA9jrg.jpg:large
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[00:57:32] <ssi> https://pbs.twimg.com/media/BygD4m8IcAEWAbY.jpg:large
[00:57:37] <ssi> in that first picture, the bottom layer is gone
[00:59:06] <andypugh> Actually, I am rather used to paying $50 for a gasket.
[00:59:37] <ssi> from the drawing it looks like it might be like an oil seal
[01:00:15] <andypugh> The head-gasket for my bike is $200
[01:00:20] <ssi> https://pbs.twimg.com/media/BygEjnaIEAEXWpq.jpg
[01:00:23] <ssi> it's number 14
[01:01:10] <andypugh> It looks like a soft seal restrained by a solid ring. It might well be genuinely special.
[01:01:29] <ssi> http://www.ebay.ca/itm/Hardinge-Machine-Tools-Seal-NC11198-2-V-/300839410297?pt=LH_DefaultDomain_0&hash=item460b6d1a79
[01:01:42] <ssi> the $23 shipping is a bit excessive :/
[01:02:10] <ssi> oh if I hit it from the .com site it's free shipping
[01:02:14] <ssi> ok buying it heh
[01:02:34] <andypugh> http://uk.shophardinge.com/product.aspx?partNo=NC11198-2
[01:02:43] <andypugh> List price £121 !
[01:02:53] <ssi> yeah, that's unsurprising
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[01:03:03] <ssi> I had to replace a shuttle valve in the carriage, and it was $300
[01:03:13] <ssi> also had to replace a little nickel bellows coupler and it was $88
[01:03:29] <andypugh> I would be expecting to buy a whole lathe for $300
[01:03:40] <ssi> I paid $1000 for the lathe
[01:04:06] <ssi> the thing that irks me is the guy that sold it to me is the one who's selling a seal on craigslist for $50
[01:04:10] <ssi> he had piles of spare parts
[01:04:16] <ssi> nothing went with the machine
[01:04:24] <ssi> I had to buy tooling separately from him, at considerable markeup
[01:04:38] <andypugh> I paid £50 for three servos, then £60 _each_ for the connectors to make them useful. These things happen
[01:04:54] <ssi> yeah
[01:05:11] <ssi> seems like most nice servo drives have amp champ series II connectors on them
[01:05:18] <ssi> and the bastards are like $40 apiece if you buy the backshells
[01:05:46] <andypugh> Nothing here? http://www.ebay.co.uk/itm/HARDINGE-LATHE-SPARES-JOB-LOT-SHAFTS-ETC-/310405611927
[01:06:16] <ssi> I see an index motor for the turret
[01:06:26] <ssi> couple clippard valves
[01:06:38] <ssi> see that little brass guy on the lower right with two barbed fittings?
[01:06:51] <ssi> pretty sure that's the guy I repaired with loctite today which has been holding me up from running this lathe for the last two years
[01:07:44] <andypugh> Yeah, if you have the right lathe that £80 looks line a bargain
[01:07:56] <andypugh> What is shipping where you are?
[01:08:15] <ssi> just says ask for quote
[01:08:19] <ssi> probably high enough that it's not worth it
[01:08:29] <andypugh> Talking of total bargains (to exactly the right buyer) this is a steal. But not for me: http://www.ebay.co.uk/itm/Fanuc-Drives-Servos-Power-Unit-Monitor-and-Motors-out-of-Fanuc-OTF-CNC-Lathe-/191345412848?&_trksid=p2056016.l4276
[01:08:38] <ssi> the only two parts that I recognize as probably going to my lathe are the index motor and that mead valve
[01:09:07] <andypugh> If you want it, I could buy it and post slow/insecure.
[01:09:26] <ssi> I'm not sure it's worth the money tbh
[01:09:36] <ssi> I'm sure I'll have a different story if my index motor craps out ;)
[01:09:59] <andypugh> It keeps being re-listed anyway :-)
[01:10:03] <ssi> yea
[01:10:21] <ssi> the valve I repaired earlier is fine, the barbed fitting on the side was press fit and it pulled out with the hose
[01:10:29] <ssi> I loctited it back in and replaced the hose with some new tubing
[01:10:36] <ssi> and that seemed to sort out the pneumo issues
[01:10:44] <ssi> now I just gotta get that seal changed and time the encoder
[01:12:16] <ssi> I should probably get into the cushion and stop mechanism and make sure that's all working correctly also
[01:15:26] <andypugh> I am amused that I now have a batch of three Ner-a-Car light switches. I doubt that three of them have been so close together for decades.
[01:15:46] <ssi> haha
[01:16:33] <andypugh> Did you see the Geutskens page? It’s probably the sturdiest 4V / 5A switch ever made.
[01:16:41] <ssi> no
[01:17:05] <andypugh> http://www.geutskens.eu/neracar/lighting_switch.htm
[01:17:21] <andypugh> I am making a batch of three replicas
[01:17:59] <Tom_itx> sell the spares
[01:18:00] <andypugh> It’s a ton of work. The trapeziums in brass and bakelite were a full evening.
[01:18:03] <ssi> nice
[01:19:34] <andypugh> Well, the deal is that somebody in Italy had made three body castings, so I agreed to make them all into complete switches and only ship two back. :-)
[01:20:20] <Tom_itx> oh
[01:21:50] <andypugh> On reflection, he got a bargain. He sent 3 parts, he gets 2 x 32 parts back.
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[01:48:38] <Connor> andypugh: Where you been ?
[01:48:58] <andypugh> Doing other stuff.
[01:49:08] <andypugh> Mainly restoring a Ner-a-Car
[01:49:19] <Connor> Cool
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[01:50:27] <andypugh> Before: https://picasaweb.google.com/lh/photo/Rkq-L3EuYFtsG5fhFRoxB9MTjNZETYmyPJy0liipFm0?feat=directlink
[01:50:29] <cradek> andypugh! I loved your bike video.
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[01:50:53] <andypugh> After: https://picasaweb.google.com/lh/photo/t8Zjf5R10d2ojqKlzTw6RNMTjNZETYmyPJy0liipFm0?feat=directlink
[01:51:20] <cradek> hey a seat!
[01:51:37] <cradek> wow that first photo is a surprise after seeing it mostly done
[01:51:51] <cradek> did you get plates so you can drive it?
[01:52:20] <andypugh> Not yet, but it should only be 2 more weeks. All the docs were posted today.
[01:52:31] <cradek> cool
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[01:54:07] <cradek> will you put a sideways tag on the front fender like it had?
[01:54:17] <andypugh> cradek: Did you not see the first entry? It went backards from the first picture, I had to de-rivet the chassis, repair the rust and re-rivet: http://bodgesoc.blogspot.co.uk/2014/04/1921-ner-car.html
[01:54:43] <cradek> yes I've been following it all along
[01:55:21] <andypugh> Yes, the “Pedestrian Slicer” will be reinstated, they are funny. :-)
[01:55:32] <cradek> ha
[02:01:10] <ssi> pulled the seal out and put it back togehter, and retimed the encoder
[02:01:13] <ssi> seems to be hitting all the tool changes now
[02:01:45] <andypugh> I just noticed, it’s been 5 years or more, and I have moved house, but all 4 bikes are still in the same arrangement in the garage, with rather more CNC machines behind them.
[02:02:07] <ssi> cnc machines just sorta spontaneously multiply
[02:02:48] <andypugh> Like wire coat hangers.
[02:03:15] <roycroft> and unmated socks
[02:03:19] <andypugh> And unlike socks. Which just evaporate without you ever knowingly throwing any away…
[02:04:39] <ssi> http://i.imgur.com/7FIEdrk.png
[02:05:14] <roycroft> we seem to have opposing perspectives on socks, andypugh
[02:05:25] <roycroft> i think we can agree, though, that they act spontaneously
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[02:07:16] <Connor> andypugh: Question: Do you have a WORKING config using the orient.9 comp with a VFD ?
[02:07:48] <andypugh> roycroft: No, we agree, socks disappear, one by one.
[02:08:15] <LeelooMinai> You don't have socks with rfid chips?
[02:08:30] <andypugh> In fact, I don’t recall ever throwing away any item of clothing, but I am sure I used to have stuff that I don’t have any more.
[02:08:38] <ssi> gah I'm hungry again
[02:08:38] <Connor> andypugh: and a completely UNRELATED question: a setup for a 4th axis that runs in velocity mode as a spindle then switches to a mode for indexing.
[02:08:41] <ssi> I just ate like six hours ago
[02:08:48] <ssi> why does this eep happening to me?!
[02:09:12] <ssi> eep
[02:09:17] <andypugh> ssi: There is no easy way to say this, but you are a calorie addict.
[02:09:32] <ssi> :'(
[02:09:48] <andypugh> Go cold-turkey and eat nothing for 2 months and it will all become easier.
[02:10:09] <ssi> I bet it will
[02:10:59] <tjtr33> andy these mounts may be of use (and looks like customized plate frames might be as popular as in US ) http://thexscafedotcom.wordpress.com/2011/10/15/xs650-pedestrian-slicer/
[02:11:58] <andypugh> ssi: If you manage that then the next stage is to ex
[02:12:22] <andypugh> …er …eschew oxygen
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[02:13:15] <ssi> I'm fond of oxygen tho
[02:13:27] <ssi> I find that I am particularly sensitive to hypoxia
[02:15:25] <ssi> thankfully there is a man who will bring me food in exchange for money
[02:15:53] <XXCoder> We are all addicted to oxygen
[02:16:13] <XXCoder> if you think you aren't, stop using oxy dope for 10 minutes
[02:16:56] <Tom_itx> we are being held prisoner on earth
[02:17:05] <andypugh> Connor: I don’t have a working orient. I got someone else there iteratively, but I don’t think I ever saw the finished config
[02:17:08] <Tom_itx> (the knew what they were doing..)
[02:17:14] <Tom_itx> they*
[02:20:40] <andypugh> tjtr33: I have original holes in the mudguard, and an actual original plate. I just need to rivet it back on.
[02:21:47] <andypugh> Tom_itx: Damn! this gravity well!
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[02:25:16] <zeeshan|2> finally got this damn video working.
[02:25:48] <ssi> andypugh: what about setting up spindle so it's also a C axis? do you know how to do that?
[02:26:08] <andypugh> Is http://www.girlgeniusonline.com up? It seems to serve no actual data?
[02:27:15] <tjtr33> try http://www.girlgeniusonline.com/comic.php instead
[02:27:42] <andypugh> ssi: I know how to do it. It’s not all that hard. You need a good VFD, I didn’t have one: http://youtu.be/3oTJNEVpvYY
[02:28:16] <tjtr33> damn i wish i hadnt googled that, now its on my record
[02:29:07] <andypugh> tjtr33: ? It’s quite good, it won 3 Hugos
[02:32:10] <tjtr33> Hugos? i wouldnt think, but i am no Hugo judge ( back to the stainless steel rat gets drafted by HH )
[02:32:30] <XXCoder> someone menioned stainless steel rat
[02:32:32] <XXCoder> damn
[02:32:42] <XXCoder> thought I was only one who liked it :P
[02:32:46] <tjtr33> hehe
[02:33:03] <XXCoder> making sure, book series right? very far in future
[02:33:14] <tjtr33> yep, great thief
[02:33:18] <andypugh> Yeah, read them all. A bit dated now.
[02:33:19] <XXCoder> good
[02:33:31] <XXCoder> I dont have all books I think but I love em
[02:34:33] <XXCoder> Other series you guys might love is miles vorkosigan
[02:34:59] <tjtr33> i'm donating it to the hotel library. I recommend Candlewood Suites when on the road. Free washer dryer, full kitchen, good wifi ( with my Alfa )
[02:35:11] <andypugh> Girl Genius is a graphic novel, but well done, funny and based on an interesting premise. In a steampunk world, if all the canonical Mad Scientists trying to Take Over The World(tm) had succeded, what would the world be….
[02:35:30] <andypugh> XXCoder: Yeah, read them all.
[02:35:48] <XXCoder> I have most of that too. didnt manage to collect em all like pokemon lol
[02:36:29] <andypugh> XXCoder: If you like them, try “Tuf Voyaging” by George R R Martin” before he hit the big time.
[02:37:19] <tjtr33> Stan Lee's daughter wrote StarStruck http://en.wikipedia.org/wiki/Starstruck_%28comics%29 beware of the girl scouts!
[02:37:24] <XXCoder> thanks
[02:37:44] <XXCoder> like hardcore scifi books? if so, look for Light of Other Days.
[02:38:07] <XXCoder> other good hardcore scifi is Xeelee series
[02:39:28] <tjtr33> at one time emc used a server named Zelazny
[02:41:09] <tjtr33> well i got the dang M1xx code to work after i stopped confusing halui.program.run with halui.program.resume (facepalm)
[02:41:36] <XXCoder> careful with xeelee series though. it's like injecting very strong drug when used to just light drugs lol
[02:41:43] <XXCoder> mainlining scifi lol
[02:42:52] <tjtr33> gnite!
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[02:44:08] <ssi> well
[02:44:13] <ssi> money for the VMC has been sent
[02:44:16] <ssi> the rest is up to god
[02:44:23] <XXCoder> or gods
[02:44:30] <XXCoder> or nothing
[02:44:36] <ssi> mostly truckers tbh
[02:44:37] <jdh> is there a patron saint of trucking/rigging?
[02:44:44] <zeeshan|2> congrads ssi
[02:44:51] <ssi> lul thx
[02:45:01] <zeeshan|2> when is it going to arrive
[02:45:20] <ssi> beats the hell out of me
[02:45:24] <ssi> he won't schedule the truck til he gets the money
[02:45:32] <ssi> banks are terrible and outdated, so the wire won't happen til monday
[02:45:38] <ssi> which means he probably won't "have" it til tuesday
[02:45:44] <jdh> paypal!
[02:45:47] <zeeshan|2> wire is usually instant
[02:45:57] <zeeshan|2> dont you watch movies?!
[02:46:02] <zeeshan|2> they usually have a gun to someones head
[02:46:08] <zeeshan|2> while theyre trying to wire money
[02:46:14] <zeeshan|2> :]
[02:46:43] <ssi> oh well
[02:46:46] <ssi> I just need to be patient
[02:46:59] <ssi> not my strong suit
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[02:53:10] <zeeshan|2> https://www.youtube.com/watch?v=pFkvmbWZIls
[02:54:45] <ssi> what in the world are you doing
[02:55:07] <zeeshan|2> thats that shape memory polymer laminate im researching for masters
[02:55:10] <andypugh> jdh: St Christopher is the Patron Saint of Truck Drivers, but I suspect you want the patron saint of cargo ;-)
[02:55:19] <zeeshan|2> still having a hard time trying to focus
[02:55:30] <jdh> yeah, or cargo owners
[02:56:03] <ssi> St Hubert is the patron saint of machinists
[02:56:16] <zeeshan|2> st huberts chicken?
[02:56:26] <zeeshan|2> its delicious
[02:56:30] <ssi> Hubert is also the patron saint for archers, forest workers, furriers and trappers, hunters and huntsmen as well as hunting as a profession. He is also the patron saint for mathematicians, machinists, precision instrument makers and smelters along with those stricken with hydrophobia (rabies) and dogs.
[02:56:42] <ssi> lol
[02:56:51] <zeeshan|2> haha
[02:56:53] <zeeshan|2> what the hell
[02:57:07] <jdh> he's very diverse
[02:57:10] <ssi> heheh
[02:58:59] <ssi> well if this doesn't go well
[02:59:01] <ssi> I'll be stricken with rabies
[02:59:05] <ssi> so I guess that's a win win
[02:59:06] <zeeshan|2> itll go well
[02:59:07] <zeeshan|2> :P
[03:00:17] <zeeshan|2> https://www.youtube.com/watch?v=M_HmkFy34vA
[03:00:21] <zeeshan|2> heres that same test
[03:00:28] <andypugh> OK chaps, sleep time.
[03:00:29] <zeeshan|2> with some shitty ass image recognition that i wrote
[03:00:36] <zeeshan|2> still too much noise
[03:00:37] <ssi> night andypugh
[03:00:40] <zeeshan|2> gnite anarchos2
[03:00:41] <zeeshan|2> andypugh:
[03:00:45] <zeeshan|2> i mean
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[03:01:40] <ssi> who wants to design and build a renishaw wireless probe knockoff with me?
[03:01:45] <asah> ssi: what did you get? VMC?
[03:01:52] <ssi> asah: yeah, a cinci sabre 500
[03:01:57] <zeeshan|2> ssi you can make 2
[03:02:00] <zeeshan|2> and give me one
[03:02:12] <ssi> help me come up with the design and pay for materials and I will
[03:02:32] <asah> cool. I am interested in the probe fun.
[03:02:50] <asah> I have a renishaw mp9 and planning on reverse engineering the ir protocol
[03:02:56] <ssi> http://www.ebay.com/itm/Haas-Wireless-Renishaw-40-Probe-Tool-setter-And-Wireless-Eye-With-Harness-/321529266589?pt=LH_DefaultDomain_0&hash=item4adca3419d
[03:03:04] <asah> it was relativly scheap on ebay.
[03:03:11] <ssi> relative to what?
[03:03:14] <asah> not that cheap. =)
[03:03:21] <zeeshan|2> is that a 3d probe
[03:03:25] <ssi> yes
[03:03:36] <zeeshan|2> i bet its just got a buncha plates in there
[03:03:38] <zeeshan|2> pull out the patent
[03:03:41] <zeeshan|2> copy
[03:03:42] <zeeshan|2> win
[03:03:46] <ssi> touch probes aren't super complex
[03:03:46] <zeeshan|2> :D
[03:03:54] <ssi> I've seen some diy designs for them in the past
[03:03:56] <skunkworks> yikes.
[03:04:03] <ssi> the wireless part is doable
[03:04:07] * skunkworks hugs his cheap touch probe
[03:04:10] <zeeshan|2> tardunio
[03:04:18] <ssi> I don't necessarily care that it'ts the same as renishaw's ir protocol
[03:04:21] <asah> I have gone down that rabit hole a ways in research.
[03:04:24] <ssi> but if asah wants to help us copy that too, I'm ok with it
[03:04:28] <asah> =)
[03:04:31] <ssi> asah: yeah? and what conclusion did you come to
[03:04:43] <asah> its been 3 or 4 months.
[03:04:46] <ssi> skunkworks: homemade?
[03:04:52] <asah> but their “protocol” is pretty simple
[03:04:57] <zeeshan|2> ssi whats the advantage of the reinshaw over say the heimer
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[03:04:59] <ssi> there can't be that much to the protocol
[03:04:59] <zeeshan|2> w/ the indicators
[03:04:59] <asah> just a burst at a particular freq
[03:05:10] <skunkworks> ssi: ebay find.. renishaw knock off..
[03:05:28] <ssi> zeeshan|2: I don't know anything about the heimer
[03:05:31] <asah> their patent talks all about it actually, zeeshan is right
[03:05:46] <zeeshan|2> http://ecx.images-amazon.com/images/I/414yl-7En8L.jpg
[03:05:51] <zeeshan|2> thats the haimer
[03:05:51] <asah> even down to the part numbers of the pin diodes etc.
[03:05:54] <skunkworks> ssi: http://electronicsam.com/images/KandT/probe/DSCF1507%5b1%5d.jpg
[03:05:58] <zeeshan|2> i like how it has an indicator
[03:06:02] <zeeshan|2> so you can see how far you're off
[03:06:06] <skunkworks> works very well for our use..
[03:06:16] <ssi> zeeshan|2: how does it report back to the control?
[03:06:20] <ssi> skunkworks: wired I presume?
[03:06:21] <zeeshan|2> it doesnt
[03:06:22] <zeeshan|2> lol
[03:06:27] <zeeshan|2> you manually enter 0
[03:06:28] <ssi> zeeshan|2: well then there you go :)
[03:06:34] <zeeshan|2> gotcha
[03:06:49] <ssi> zeeshan|2: the renishaw can find five sides of your part and offset your coordinate system before start
[03:06:54] <skunkworks> ssi: yes - it was wireless (well inductive of some kind) but we didn't get the reciever
[03:06:56] <ssi> zeeshan|2: it can measure features after cutting and update wear offsets
[03:07:05] <zeeshan|2> nice
[03:07:06] <ssi> zeeshan|2: that's all crap the haas control does, but it'd be fun to implement
[03:07:10] <zeeshan|2> so its almost like acmm probe
[03:07:13] <ssi> yeah exactly
[03:07:15] <zeeshan|2> built into cnc mill
[03:07:25] <ssi> and they have a toolsetter that can probe the length and diameter of your tools and update tool table
[03:07:46] <zeeshan|2> diameter of tools is usually a laser measurement tool
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[03:07:54] <zeeshan|2> that you use while the tool is spinning
[03:07:55] <ssi> renishaw uses a rub sensor
[03:08:04] <zeeshan|2> so you can compensate for dynamics
[03:08:20] <ssi> they turn it backwards and touch the end and two sides to the rub sensor
[03:08:28] <ssi> but it's spinning, so I guess it's compensating for dynamics
[03:08:35] <zeeshan|2> nice
[03:08:37] <zeeshan|2> sounds fancy
[03:08:46] <ssi> skunkworks: that looks like it'd work fine honestly
[03:08:47] <zeeshan|2> running backwards reminds me of something
[03:08:58] <zeeshan|2> the other day one of the group members that i was teachiung the milling lab to
[03:09:06] <zeeshan|2> was trying to run the spindle in CCW mode and mill
[03:09:07] <zeeshan|2> haha
[03:09:15] <zeeshan|2> was wondering why the tool wasnt cutting
[03:09:22] <ssi> I guess I should worry about getting the machine, getting it converted, getting tooling, and making parts before I worry about touch probes :P
[03:09:25] <skunkworks> ssi: sure - we need to find some more probes - but honestly - I don't know how we lived without one... :)
[03:09:38] <ssi> zeeshan|2: yeah I have a bunch of left hand endmills and I run into that a lot actually :)
[03:09:44] <ssi> "gosh that didn't sound good"
[03:10:16] <ssi> http://www.ebay.com/itm/Touch-probe-cmm-digitizing-renishaw-haas-fadal-cnc-mill-lathe-router-engraver-/161352724525?pt=LH_DefaultDomain_0&hash=item25915f302d
[03:10:16] <zeeshan|2> haha
[03:10:23] <ssi> something like that would be ok, but I'd really prefer wireless
[03:10:28] <ssi> wired touch probes don't play well with ATC
[03:10:39] <ssi> something liek that would be ok for the 704 with TTS
[03:12:01] <zeeshan|2> i cant make up my mind
[03:12:06] <zeeshan|2> eat some posion fast food
[03:12:12] <zeeshan|2> (10 min away)
[03:12:16] <zeeshan|2> or drive to a real burger joint
[03:12:21] <zeeshan|2> (30 min away)
[03:12:22] <ssi> I was trying to make that decision
[03:12:25] <ssi> I opted for pizza
[03:12:27] <ssi> 0 min away
[03:12:37] <zeeshan|2> id love to get pizza
[03:12:44] <zeeshan|2> but ive had it already too much
[03:13:04] <zeeshan|2> screw it
[03:13:05] <zeeshan|2> fast food
[03:13:07] <zeeshan|2> :)
[03:13:14] <zeeshan|2> it's the weekend.
[03:13:41] <ssi> it is indeed
[03:13:45] <ssi> I'm going to sail all weekend
[03:13:54] <ssi> I need it to unwind from the bs this week :P
[03:13:59] <zeeshan|2> haha
[03:14:14] <ssi> and by bs, I mean zeeshan fights ;)
[03:16:04] <skunkworks> oh.. get a room! ;)
[03:16:25] <ssi> lolol
[03:16:53] <ssi> sunday's the second regatta of the season
[03:17:37] <asah> happy to work with you ssi when you get down the road a bit and want the wireless probe. I have the probe, but I need the reciever and linuxcnc integration. I figure arduino nicely housed with some pin diodes and LEDs like the link you sent out.
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[03:18:05] <ssi> asah: the electronics shouldn't be all that killin hard
[03:18:16] <ssi> I don't have a probe though, so I'll have to build something
[03:19:13] <asah> https://www.dropbox.com/sh/bar9sn8j8oiqa5b/AACmTB75DjrgeiYef9YNzB5Wa?dl=0
[03:19:20] <asah> thats my stash of renishaw research.
[03:19:24] <asah> the patents are in there.
[03:20:00] <ssi> nice
[03:20:14] <asah> pretty sure mine is an mp7
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[03:21:09] <asah> http://www.touch-probe.com/kinematic-resistive-probes/11/
[03:21:57] <asah> renishaw is playing games with the resistance of the connection to detect the displacement of the tip before contact is actually lost between the metalic elements.
[03:22:29] <asah> which is how they get the uber performance.
[03:22:46] <ssi> what do you suppose is the cheapest I can get my hands on one of the probe heads?
[03:24:36] <asah> I think mine was $3-$400
[03:24:46] <ssi> that's not bad
[03:24:46] <asah> I haveen’t been tracking it in a while.
[03:24:56] <asah> they have a whole bunch of radio ones out there.
[03:24:57] <ssi> and you're lacking the wireless receiver?
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[03:25:07] <asah> yep.
[03:25:08] <ssi> yea you said that already ok
[03:25:09] <ssi> :)
[03:25:22] <asah> its like 1000-1200 with the whole setup.
[03:26:15] <asah> there are several kinds of the wireless led ones.
[03:26:39] <asah> basically its all how you “wake up” the wireless probe.
[03:26:55] <asah> mine you spin at a particular speed for at least 1 second.
[03:27:16] <asah> then it will stay active till a timeout (5 min I think)
[03:27:26] <ssi> weird
[03:27:48] <asah> that haas om40 you sent out gets woken up via the IR LEDs on the wireless reciever side.
[03:27:53] <asah> so it is bidirectional.
[03:28:46] <asah> so it has a little micro on it that sleeps most of the time, then wakes up and checks for the turn on signal.
[03:28:58] <asah> so it takes more batteries.
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[03:29:13] <ssi> makes sense
[03:29:51] <asah> I like the elegance of the spin to boot thing. but it does mean you have to spin it before any probing.
[03:30:01] <ssi> that's no big deal
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[03:30:12] <ssi> hey mhaberler
[03:30:38] <ssi> mhaberler: Connor and I have been looking into the spindle orient stuff
[03:30:42] <ssi> it's still a bit mysterious to us :)
[03:31:03] <MacGalempsy> evening
[03:34:19] <ssi> ok I want my VMC now pls
[03:34:24] <ssi> :'(
[03:34:41] <Connor> mhaberler: Yea.. I emailed you yesterday.. Looked over your config you linked too.. man is that config complex.
[03:34:57] <XXCoder> ssi bribe me. I probably will help make it go faster
[03:35:05] <ssi> XXCoder: you like cookies?
[03:35:36] <XXCoder> yep but hardly worth it as bribe. I may consider if you offer me hurco vm10. ;)
[03:35:53] <ssi> I don't have hurco vm10
[03:36:08] <XXCoder> oh hmm
[03:36:10] <XXCoder> heh
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[03:39:32] <zeeshan|2> fOOODd
[03:41:11] <asah> ssi: good doc for mechanicals on the renishaw probe: https://www.dropbox.com/s/k9x71m9w3b4b7z9/TE411_innovations_in_touch-trigger_probe_sensor_technology.pdf?dl=0
[03:43:40] <zeeshan|2> https://www.google.com/patents/EP0142373B1?cl=en&dq=0142373&hl=en&sa=X&ei=VjImVNLPMoWVyQST8YHgCA&ved=0CCsQ6AEwAg
[03:43:41] <zeeshan|2> the patent
[03:44:05] <zeeshan|2> looks like a fulcrum basically
[03:44:11] <zeeshan|2> that is precisely machined
[03:45:25] <ssi> that's pretty much it
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[03:50:54] <ssi> Connor: easy come, easy go
[03:51:34] <Connor> ssi and not even a hello :(
[03:51:45] <Connor> Oh well.
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[03:56:31] <skunkworks> that sucks
[04:01:03] <XXCoder> http://woodgears.ca/misc/wasp_sucker_xl.html
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[07:03:44] <Deejay> moin
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[12:09:04] <jthornton> morning
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[12:30:17] <Deejay> re
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[14:19:03] <zeeshan|2> hi
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[14:29:27] <zeeshan|2> other than aligning with tail stock, or aligning it by eye using a workpiece
[14:29:44] <zeeshan|2> is there a way to get a tool height for a lathe tool to be exactly within 0.0005" of centerline?
[14:30:05] <zeeshan|2> i'm making pointed tips out of tool steel
[14:30:18] <zeeshan|2> for indentation purposes, so it's gotta come to a nice point
[14:30:22] <zeeshan|2> that i can grind off after heat treating
[14:30:30] <zeeshan|2> grind sharper i mean
[14:31:56] <zeeshan|2> oh i can do the scale between the tool tip and a work piece
[14:32:13] <jthornton> height gauge?
[14:32:27] <zeeshan|2> how would the height gauge work?
[14:32:31] <zeeshan|2> you measure a known work piece diameter
[14:32:35] <zeeshan|2> divide by two
[14:32:42] <zeeshan|2> and then make your tool hits the height gauge?
[14:32:50] <jthornton> yea
[14:32:54] <zeeshan|2> good idea
[14:33:35] <zeeshan|2> i think ill use a 4 jaw chuck
[14:33:43] <zeeshan|2> to ensure the dowel im going to use is concentric first
[14:33:50] <zeeshan|2> otherwise i'll be chasing my tail :P
[14:34:35] <jthornton> http://aafradio.org/garajmahal/Hardinge_L-2A_Tool_Setting_Gauge.html
[14:34:48] <jthornton> I have one of those for my Hardinge CHNC
[14:35:57] <zeeshan|2> i'm liking that tool
[14:36:04] <zeeshan|2> so you start off with a ground rod milled to half
[14:36:14] <zeeshan|2> adjust your tool setter
[14:36:28] <zeeshan|2> i like.
[14:36:40] <zeeshan|2> that gives me another idea
[14:37:00] <zeeshan|2> i have a 0.0005" 1" travel indicator
[14:37:20] <zeeshan|2> i can take a piece of 1" ground dowel in a collet
[14:37:40] <zeeshan|2> 0 it, and then drop the indicator to the tool tip
[14:37:48] <zeeshan|2> and keep adjusting it till iget my diameter/2 reading
[14:38:23] <zeeshan|2> i currently dont have a mill to make that hardinge tool
[14:38:29] <zeeshan|2> will be without a mill till oct 10
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[14:52:18] <Tom_itx> we used similar height gauges on the old New Brittans etc
[14:52:36] <zeeshan|2> is there a quick and easy way to adapt ER collets
[14:52:37] <zeeshan|2> onto a lathe
[14:52:42] <zeeshan|2> or is 5C the best way
[14:52:51] <zeeshan|2> from what i remember 5c can hold as large as 1-1/8
[14:53:24] <archivist> there are morse taper collets too
[14:53:33] <zeeshan|2> archivist: do they use a drawbar?
[14:53:38] <archivist> yes
[14:53:42] <zeeshan|2> are they cheaper? :D
[14:53:47] <zeeshan|2> 5c collet chucks are crazy expensive
[14:53:50] <zeeshan|2> even an import
[14:53:51] <archivist> well the sensible ones do
[14:53:55] <zeeshan|2> like $300
[14:54:18] <zeeshan|2> isn't mt the wrong geometry
[14:54:22] <zeeshan|2> for a drawbar
[14:54:46] <archivist> I use morse taper collets on the rotaries and lathe spindles, and even the 5 axis spindle
[14:55:04] <zeeshan|2> my lathe has a mt5 on the spindle
[14:55:16] <archivist> ah that gonna cost
[14:55:19] <zeeshan|2> do you know where i can get mt5 collets for relatiely cheap?
[14:55:20] <zeeshan|2> damn it
[14:55:21] <zeeshan|2> haha
[14:55:34] <zeeshan|2> i'm probably better off going with a 5c collet chuck
[14:55:39] <zeeshan|2> that way i can use a 5c collet block on the mill too
[14:55:42] <zeeshan|2> to hold tiny pieces
[14:56:33] <zeeshan|2> http://www.ebay.com/itm/Morse-Taper-5-MT5-ER40-M20-Collet-chuck-ER40-spindle-toolholder-CNC-lathe-New-/161307148141?pt=BI_Tool_Work_Holding&hash=item258ea7bf6d
[14:56:36] <zeeshan|2> thats cheap
[14:56:38] <zeeshan|2> 66$
[14:58:19] <archivist> there are two grades of ER holders, shite and expensive
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[14:58:24] <zeeshan|2> haha
[14:58:32] <zeeshan|2> i'm pretty sure im going to go w/ a 5c collet chuck
[14:58:34] <zeeshan|2> its easier to operate
[15:00:07] <zeeshan|2> its a $150 for the 29 piece collet set 5c
[15:00:20] <archivist> I think I used onlineseller for one of my er collet chucks
[15:00:26] <zeeshan|2> 100 bux for the 5c spin indexer and tailstock
[15:00:31] <zeeshan|2> and another 60 for the 5c collet block
[15:00:42] <zeeshan|2> so $300 you can have a fairly good milling setup
[15:00:50] <zeeshan|2> and then it seems like another $300 for a lathe collet chuck :(
[15:01:13] <zeeshan|2> 'theonlineseller.com'
[15:01:14] <zeeshan|2> ?
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[15:02:40] <archivist> that seller you pointed at on fleabay
[15:02:50] <zeeshan|2> oh
[15:03:49] <zeeshan|2> http://img.auctiva.com/imgdata/7/6/1/3/7/0/webimg/757801002_o.jpg?nc=902
[15:03:56] <zeeshan|2> i cant tell if theres a drawbar hole there
[15:03:58] <zeeshan|2> thread imean
[15:04:16] <Tom_itx> get one and find out
[15:04:26] <zeeshan|2> i dont think its worth it
[15:04:32] <zeeshan|2> cause that drawbar is a bad idea in general
[15:04:36] <zeeshan|2> you wont be able to hold long parts
[15:04:41] <zeeshan|2> cause the drawbars in the way
[15:04:53] <zeeshan|2> it works great if you deal with small parts
[15:05:20] <archivist> you absolutely need drawbars
[15:05:28] <zeeshan|2> http://www.arceurotrade.co.uk/imagecache/d4ef767e-8523-492a-b246-d713e0ddb5df_281x214.jpg
[15:05:38] <zeeshan|2> if you have something like this adapter to my di-4 cam lock
[15:05:41] <zeeshan|2> then you dont
[15:05:59] <archivist> use front clamping collets or a tubular drawbar
[15:06:05] <zeeshan|2> unless i'm missing something?
[15:06:51] <archivist> er if a front clamping collet, so that is ok but nothing to hold the holder in is a mistake
[15:07:00] <archivist> if/is
[15:07:05] <zeeshan|2> yea
[15:07:05] <zeeshan|2> lol
[15:07:12] <zeeshan|2> side milling on a morse taper is pretty scary
[15:07:20] <zeeshan|2> (drill press experience)
[15:09:21] <zeeshan|2> damn
[15:09:24] <zeeshan|2> er collets are so cheap
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[15:10:16] <SpeedEvil> zeeshan|2: easy fix - loctite.
[15:10:21] <SpeedEvil> (no, I am not being serious)
[15:10:26] <zeeshan|2> haha
[15:10:27] <SpeedEvil> (well, not very)
[15:10:32] <archivist> the cheap ones yes, not the high spec ones
[15:10:33] <zeeshan|2> well thats not a bad idea
[15:10:37] <zeeshan|2> for temporary milling
[15:10:51] <zeeshan|2> might be a pain in the ass to remove your chuck out though!
[15:11:02] <SpeedEvil> Hot-melt then.
[15:11:21] <zeeshan|2> archivist: i'm looking at glacern tools
[15:11:22] <zeeshan|2> not chinese
[15:11:37] <archivist> clock and watch makers use shellac for gluing parts for machining, it can be cleaned off
[15:11:46] <zeeshan|2> nm. theyre expenensive!
[15:11:59] <zeeshan|2> i was looking at er16
[15:12:02] <zeeshan|2> er32 is 350$
[15:12:17] <zeeshan|2> 0.0002 TIR
[15:12:56] <zeeshan|2> http://www.shars.com/products/view/1102/ER40_15_pcs_Collet_Set
[15:12:59] <zeeshan|2> $177
[15:13:07] <zeeshan|2> 0.0004 TIR (i wonder if its true)
[15:13:11] <zeeshan|2> cause that's not bad at all
[15:13:32] <zeeshan|2> On size 1/8" and larger the runout is .0003"; under size 1/8 the runout is .00059"
[15:13:37] <zeeshan|2> now i can't trust t hem
[15:13:37] <zeeshan|2> haha
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[15:15:26] <zeeshan|2> garage time. need to hook up limit s/w
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[15:20:35] <fenugrec> Hi people, I'm having trouble with G2/G3 moves on a lathe VS the G90.1 / G91.1 modes. For G90.1, the manual says "abs distance mode for IJK offsets", and since I'm working in Diameter mode, it would be logical to assume "I" has to be an absolute diameter...
[15:21:30] <fenugrec> But when I load an ngc file in AXIS, it craps on the line with the G2/G3 claiming "radius to end of arc differs from radius to start", since it interpreted I as an absolute radius
[15:22:51] <SpeedEvil> For those who weren't on a few hours ago.
[15:22:54] <SpeedEvil> http://www.f1-2000.co.uk/index.php?f=fuel_injectors
[15:23:10] <SpeedEvil> http://www.f1-2000.co.uk/index.php?f=conrods
[15:23:19] <SpeedEvil> 1/4 scale ferrari engine.
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[15:56:27] <archivist> linuxcnc meeting in 5 minutes in #linuxcnc-meet
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[17:01:12] <zumba_addict> hey folks, I have an existing stepper motor and I would like to use a threaded rod rather than my existing belt to drag a camera dolly. However, I can't figure out how I will connect the shaft of my stepper motor into the threaded rod. I was thinking that using threaded rod will be easier for my stepper motor to drag dolly at an angle
[17:01:48] <XXCoder> coupler?
[17:02:08] <Tom_itx> ok that completes the shop wiring test
[17:02:51] <XXCoder> zumba_addict: not a expert but would couple work? You would probably have to machine smooth part of threaded rod to connect coupler to it though
[17:02:57] <XXCoder> *coupler
[17:03:10] <zumba_addict> how does it look like? Look at my old video(project collecting dust), I'm using belt. That's without the camera and stepper motor was having a hard time. I already bought a new stepper motor(Nema 17) and it's way way better but I still would like to try threaded rod solution
[17:03:34] <zumba_addict> i'll search goodle on how coupler looks like
[17:03:44] <zumba_addict> oh, I forgot my video link - http://goo.gl/GwVu2u
[17:03:53] <XXCoder> couple just connects to nema directly and other end connects to rod
[17:04:12] <XXCoder> example http://www.ebay.com/itm/like/171391096455?lpid=82
[17:04:16] <XXCoder> there is many designs
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[17:04:24] <zumba_addict> ok, also the thread rod i saw in home depot is crappy. They aren't straight. I need almost straight
[17:04:36] <zumba_addict> ah, that's very cool!!!!
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[17:05:15] <zumba_addict> where can i find stainless threaded rod at 4ft long
[17:05:22] <XXCoder> theres quite few thread options online
[17:05:36] <XXCoder> ACME, one other and one ball thread
[17:05:41] <zumba_addict> this is what I would like to achieve - http://www.ebay.com/itm/NEMA-17-Lead-8mm-Pitch-Screw-300mm-Stepper-Motor-M8-Z-axis-3D-Printer-CNC-RepRap-/121380300042?_trksid=p2054897.l5670
[17:05:53] <zumba_addict> saw it when you posted the link
[17:05:55] <XXCoder> ballscrews correct name
[17:06:04] <zumba_addict> ah awesome!
[17:06:18] <zumba_addict> so I need a coupler and a ballscrew
[17:06:24] <XXCoder> yeah
[17:06:34] <zumba_addict> :)
[17:06:41] <zumba_addict> did you see my video?
[17:06:53] <XXCoder> loading
[17:07:08] <zumba_addict> it's very diy :D I'm using wood, LOL
[17:07:21] <XXCoder> heh same as mine
[17:07:28] <XXCoder> need to actually work on it :P
[17:07:36] <Tom_itx> ballscrews for wood?
[17:07:38] <Tom_itx> how silly
[17:07:45] <zumba_addict> I'm going to replace the wood with an aluminum. Now, how can I connect the ballscrew to this new aluminum thing at the end?
[17:08:03] <zumba_addict> Tom_itx: exactly. I will change it to aluminum. Or what is your suggestion?
[17:08:28] <XXCoder> Tom_itx: I use ballscrews too lol
[17:08:36] <zumba_addict> i need cool toys here at home so can build them without buying
[17:08:37] <XXCoder> quite overkill but bought mine pretty cheap
[17:08:52] <zumba_addict> are ballscrews very expensive?
[17:09:05] <zumba_addict> so guys, instead of wood, what should I use?
[17:09:15] <zumba_addict> i want to make this diy project really nice looking
[17:09:30] <zumba_addict> it's been collecting dust for more than a year now
[17:09:35] <XXCoder> zumba usually. maybe ACME is better
[17:09:38] <XXCoder> cheap
[17:09:42] <zumba_addict> what is acme?
[17:09:48] <XXCoder> its threaded rod
[17:09:53] <zumba_addict> k
[17:09:58] <XXCoder> better quality then home shop store ones
[17:10:01] <zumba_addict> are they 99% straight
[17:10:07] <zumba_addict> oh cool
[17:10:11] <Tom_itx> square thread threaded rod
[17:10:17] <XXCoder> from what i hear yeah pretty good
[17:10:50] <XXCoder> ballscrew, then chinese shit ones, is better than ACME but ACME is good for homebrews
[17:10:58] <XXCoder> *even
[17:10:59] <zumba_addict> looking at this, http://www.use-enco.com/1/3/acme-threaded-rod
[17:11:32] <zumba_addict> so ballscrew chinese is better?
[17:11:59] <XXCoder> you would need to clean and lube em but yes. it depends on what precision you need
[17:12:27] <zumba_addict> oh wow, only $18, http://www.pricefalls.com/product/Threaded-Rod-LCS-Acme-1-2-10-x-6-ft./13296086?utm_source=GoogleShopping&utm_medium=cpc&utm_term=PLA-SC&utm_content=%7Badwords_producttargetid%7D&utm_campaign=&adpos=1o7&creative=48002944951&device=c&matchtype=&network=g
[17:12:31] <XXCoder> also usually overkill lol
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[17:12:42] <XXCoder> that is goo
[17:12:43] <zumba_addict> it's ok, my stepper is 200 steps
[17:12:55] <zumba_addict> huh, goo? what do you mean
[17:12:59] <XXCoder> good
[17:13:01] <XXCoder> typo heh
[17:13:10] <zumba_addict> oh ok :D
[17:13:18] <zumba_addict> i'll need a nut though
[17:13:26] <zumba_addict> and 1/2" is fat though
[17:13:34] <XXCoder> maybe check out ebay
[17:13:37] <zumba_addict> ok
[17:13:37] <XXCoder> tend tpo have good deals
[17:13:41] <XXCoder> usually chinese
[17:14:42] <zumba_addict> k
[17:14:46] <zumba_addict> im searching now
[17:16:24] <zumba_addict> can't find a 3/8"
[17:16:46] <CaptHindsight> how long is your linear slide?
[17:16:56] <CaptHindsight> how fast do you want to move it?
[17:17:01] <CaptHindsight> what is the load?
[17:17:48] <zumba_addict> slow
[17:18:17] <zumba_addict> i move it using arduino at 1mm per every n seconds I configure
[17:18:31] <zumba_addict> the n seconds is the gap between each shot taken by camera
[17:18:47] <CaptHindsight> what diameter is the shaft on the stepper motor?
[17:18:47] <zumba_addict> can be 2 seconds to 30 seconds gap
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[17:18:53] <zumba_addict> checking
[17:19:44] <zumba_addict> it says Φ5mm
[17:19:55] <zumba_addict> this is the exact stepper motor I bought last year - http://www.omc-stepperonline.com/nema-17-bipolar-stepper-12v-04a-40ncm567ozin-17hs150404s-p-14.html
[17:20:29] <CaptHindsight> whats the length of travel?
[17:20:33] <XXCoder> rods on nema is all standardized
[17:21:19] <XXCoder> dunno what size nema17 uses though
[17:21:30] <zumba_addict> i like to at least have a 4 ft long rod
[17:21:30] <XXCoder> I use nema23 myself
[17:21:35] <CaptHindsight> probably 5mm then
[17:21:58] <zumba_addict> in this video I made, i'm moving the dolly at 3-5mm every shot - https://www.youtube.com/watch?v=A95uCHp5Q7Q
[17:22:08] <CaptHindsight> a lead screw 4 feet long can work but only at lower speeds
[17:22:25] <zumba_addict> but I can configure arduino to move it at 1mm based on the belt teeth i calculated before
[17:22:31] <zumba_addict> yes, it's fine
[17:22:33] <XXCoder> oh yes lead screw
[17:22:34] <zumba_addict> i don't need it fast
[17:22:50] <XXCoder> is it one thats barely better than shop threaded bars?
[17:22:51] <zumba_addict> making it fast is a plus
[17:23:09] <CaptHindsight> personally I'd stay with the belt drive at that travel
[17:23:19] <CaptHindsight> whats the problem with using the belt?
[17:23:23] <zumba_addict> CaptHindsight: it's sliding when it's at angle
[17:23:38] <zumba_addict> maybe the belt is lame. I am using belt from very old dot matric printer :)
[17:23:40] <zumba_addict> matrix
[17:23:50] <CaptHindsight> whats the load? in lbs or Kg?
[17:23:51] <zumba_addict> you can see it on that video
[17:24:18] <zumba_addict> i think if I remember correctly, the weight of the dolly plus the camera attached was around 5 lbs
[17:24:29] <zumba_addict> i couldn't remember anymore
[17:24:41] <CaptHindsight> will you use it in a vertical situation?
[17:24:45] <zumba_addict> no
[17:24:56] <zumba_addict> i was hoping at least max 60 degrees angle
[17:25:03] <zumba_addict> or 45 degrees
[17:25:08] <CaptHindsight> almost vertical
[17:25:11] <zumba_addict> yup
[17:25:19] <zumba_addict> but not everytime
[17:25:28] <XXCoder> well any screw would do I think
[17:25:31] <zumba_addict> most of the time, it's going to be flat which is nice for belt
[17:25:33] <CaptHindsight> bigger stepper or add a gearbox
[17:25:46] <zumba_addict> ok, never heard of gearbox
[17:25:48] <XXCoder> just need to be reasonable strong stepper
[17:25:50] <CaptHindsight> I'd use a gearbox and stepper
[17:26:01] <XXCoder> capt where would he find gearboxes?
[17:26:21] <zumba_addict> what do gearboxes do?
[17:26:34] <XXCoder> change gearing ratio
[17:26:43] <XXCoder> slower but with more toque for example
[17:26:50] <zumba_addict> can gearbox operate in any direction?
[17:26:55] <CaptHindsight> yes
[17:27:13] <zumba_addict> k
[17:27:21] <zumba_addict> but where can I find them or do I build them?
[17:28:01] <CaptHindsight> checking ebay.......
[17:28:28] <zumba_addict> I'm also thinking of buying a better belt
[17:28:50] <zumba_addict> maybe 3mm teeth versus my 1-2mm belt tooth
[17:29:05] <zumba_addict> or maybe even 5mm so it won't slip
[17:29:21] <CaptHindsight> http://www.ebay.com/itm/42-1-8-Degree-1-6A-Phase-Planet-Gear-Stepper-Motor-G-/281448884662 just an example this is only a ~6:1 reduction
[17:29:22] <zumba_addict> it kept on slipping when I was testing it before at 45 degrees
[17:29:26] <zumba_addict> k
[17:29:42] <zumba_addict> oh, I need a different stepper motor
[17:29:48] <XXCoder> planet gear excellent
[17:29:58] <zumba_addict> k
[17:30:08] <CaptHindsight> http://www.ebay.com/itm/CNC-Reprap-Stepper-Geared-motor1-15-ratio-1805oz-in-12V-3D-printer-57BYGH402AG15-/131303453384 this will do it
[17:30:13] <zumba_addict> k
[17:30:39] <zumba_addict> nice, 0.6a only
[17:30:42] <XXCoder> motor seems included. interesting
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[17:30:46] <zumba_addict> mine is 0.4a
[17:31:12] <zumba_addict> what about the thing that we connect to the shaft where the belt rotates?
[17:31:51] <CaptHindsight> timing belt and timing gear have to have the same pitch and width
[17:32:09] <zumba_addict> yes, i remember now, it's called pitch :) thank you
[17:32:23] <zumba_addict> i hope i can find them on ebay too
[17:32:40] <CaptHindsight> the timing gear also needs to have the same bore as the output shaft diameter of the motor+gearbox
[17:32:41] <zumba_addict> i'll search for diameter of the shaft from the last link you posted
[17:33:08] <zumba_addict> yes, bore! :D I've forgotten the terms already and now they're coming back
[17:33:23] <zumba_addict> I remember I bookmarked them
[17:33:32] <zumba_addict> it was not on ebay though
[17:33:54] <zumba_addict> the tooth was rounded. Is it better than squared?
[17:34:09] <CaptHindsight> the output shaft from gearbox on the motor ^^ is 8mm dia.
[17:34:49] <zumba_addict> it says 7
[17:35:01] <zumba_addict> oh you're right
[17:35:27] <zumba_addict> first time i've seen a lable like this :) --->---------<---------------------
[17:35:30] <zumba_addict> very cool
[17:35:42] <CaptHindsight> http://www.ebay.com/itm/2Pcs-GT2-20-tooth-Timing-Pulleys-And-2-Meters-Of-GT2-Belt-3D-Printing-CNC-Reprap-/301246327647 this kit has a timing pulley for nema17 motors with 5mm shaft
[17:36:07] <CaptHindsight> you'll need something similar only with an 8mm bore for the pulley
[17:36:28] <zumba_addict> i was thinking 2mm tooth wasn't good similar to what I experienced
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[17:37:02] <CaptHindsight> http://www.ebay.com/itm/2pcs-XL-XL15T-Timing-Pulley-15-Teeth-8mm-Bore-for-Stepper-Motor-2m-XL037-Belt-/141151341637
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[17:37:50] <zumba_addict> thank you sir for helping me :)
[17:38:19] <zumba_addict> i'll draw something really quick and tell me if the design is good enough
[17:38:36] <CaptHindsight> http://sdp-si.com/eStore/CoverPg/Drive_Components.htm http://us.misumi-ec.com/vona2/mech/M1000000000/M1002000000/
[17:39:16] <CaptHindsight> http://www.mcmaster.com/#timing-belt-pulleys/=two6w0
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[17:39:32] <CaptHindsight> http://www.mcmaster.com/#timing-belts/=two70l
[17:39:58] <zumba_addict> awesome!
[17:40:28] <CaptHindsight> what are you using for the stepper motor driver?
[17:44:16] <zumba_addict> just got done with drawing, http://i.imgur.com/JSJAQSc.png
[17:44:38] <zumba_addict> i forgot term for the blue circles
[17:44:50] <zumba_addict> they are smooth and rototes like bearing
[17:44:54] <zumba_addict> rotates
[17:45:02] <CaptHindsight> that will work
[17:45:05] <zumba_addict> checking my stepper motor driver , one sec
[17:45:35] <zumba_addict> it's DRV8825
[17:45:54] <zumba_addict> seen on this video, https://www.youtube.com/watch?v=IhHrrqmwf-E
[17:46:14] <CaptHindsight> you want a pulley large enough to have a few teeth engaged but not so large that you lose torque with a large diameter
[17:46:37] <zumba_addict> oh, so bigger teeth will affect torque?
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[17:47:03] <CaptHindsight> larger diameter drive pulley
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[17:47:27] <CaptHindsight> 2cm dia vs say 10cm dia
[17:47:33] <zumba_addict> but the stepper motor you suggested has a gearbox
[17:47:46] <CaptHindsight> yes, it's all part of a system
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[17:48:08] <zumba_addict> i was referring to the pulley connected to the end of the shaft. is that what you are referring to?
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[17:48:26] <CaptHindsight> end of the motor (gearbox) shaft
[17:48:49] <zumba_addict> not the one I will connect in the future right? it's the one inside
[17:49:14] <zumba_addict> this silver one, http://www.ebay.com/itm/2Pcs-GT2-20-tooth-Timing-Pulleys-And-2-Meters-Of-GT2-Belt-3D-Printing-CNC-Reprap-/301246327647
[17:49:45] <zumba_addict> which should I get, the 15 teeth or the 20 teeth?
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[17:52:08] <zumba_addict> correct me if I'm wrong that the more teeth, the higher the torque
[17:52:22] <CaptHindsight> that link has pulleys with 5mm bore
[17:53:15] <CaptHindsight> you just want enough teeth in contact with the belt so that you don't tear the teeth off the belt
[17:53:25] <zumba_addict> ok. http://www.ebay.com/itm/2pcs-XL-XL15T-Timing-Pulley-15-Teeth-8mm-Bore-for-Stepper-Motor-2m-XL037-Belt-/141151341637
[17:53:29] <zumba_addict> that's 8mm bore
[17:54:44] <CaptHindsight> http://www.aratron.se/file/9berakning.pdf
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[17:55:53] <CaptHindsight> http://www.elatech.com/425.pdf http://www.voltabelting.com/pdf/ttt2011b.pdf
[17:56:11] <zumba_addict> ok
[17:56:34] <zumba_addict> I remember now when I put the chains on our bike gear to the smallest, the harder we pedal
[17:57:58] <CaptHindsight> those pdf's explain enough of the belt specs
[17:58:22] <zumba_addict> and when we put it to the biggest gear on both ends, the pedaling becomes very light
[17:58:22] <zumba_addict> k
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[18:00:10] <zumba_addict> going back to this one, http://www.ebay.com/itm/CNC-Reprap-Stepper-Geared-motor1-15-ratio-1805oz-in-12V-3D-printer-57BYGH402AG15-/131303453384, my current stepper motor is bipolar
[18:00:39] <zumba_addict> it doesn't say it's bipolar. Looks like I may have to change my code. Correct?
[18:02:17] <CaptHindsight> http://users.ece.utexas.edu/~valvano/Datasheets/StepperSelection.pdf http://www.orientalmotor.com/support/motor-sizing.html check out the lifter section
[18:03:23] <zumba_addict> k
[18:04:33] <CaptHindsight> http://machinedesign.com/motorsdrives/how-pick-motors-linear-motion http://www.orientalmotor.com/products/pdfs/2012-2013/G/usa_tech_calculation.pdf
[18:05:46] <zumba_addict> I live the AGV but I won't be able put the dolly at an angle
[18:07:46] <zumba_addict> oops, live/like
[18:09:12] <CaptHindsight> you can lso use a larger stepper motor without a gearbox but then you'll need a brake to stop the camera from falling when you lose power
[18:11:02] <CaptHindsight> when the motor spins it will generate electricity back into the stepper driver and power supply, so you don't want that
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[18:11:41] <zumba_addict> i like the one with gearbox
[18:12:17] <zumba_addict> I'm looking at the site where I bought stepper motor before
[18:12:24] <zumba_addict> http://www.omc-stepperonline.com/geared-stepper-motors-c-4.html
[18:12:36] <zumba_addict> i'm looking something similar to what you gave to me
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[18:13:55] <zumba_addict> I'm currently looking at this, http://www.omc-stepperonline.com/gear-ratio-141-planetary-gearbox-high-torque-nema-17-stepper-17hs191684spg14-p-41.html
[18:14:14] <zumba_addict> although step angle is very small
[18:15:06] <zumba_addict> is Nm newton meter?
[18:15:11] <CaptHindsight> yes
[18:15:33] <zumba_addict> ok, that one i picked is weak
[18:15:49] <zumba_addict> it's only 3nm versus 1805 oz-in you gave to me
[18:15:53] <CaptHindsight> max torque is 3Nm
[18:16:15] <zumba_addict> yup when converted, it's 484 oz-in vs 1805 oz-in
[18:16:24] <zumba_addict> rather 424 oz-in
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[18:16:51] <CaptHindsight> well that might not be accurate since that might just be the theoretical torque but the gearbox will actually handle much less
[18:17:03] <zumba_addict> ok
[18:17:14] <zumba_addict> 1805 is 12nm
[18:17:19] <CaptHindsight> http://www.omc-stepperonline.com/gear-ratio-1001-planetary-gearbox-nema-17-stepper-motor-17hs191684spg100-p-46.html
[18:17:44] <zumba_addict> k
[18:17:49] <CaptHindsight> "When choosing a stepper motor with a gearbox, keep in mind that the gearbox Max Permissible Torque, beyond which the gearbox could become damaged."
[18:18:41] <zumba_addict> mine is currently 56.6oz.in LOL
[18:19:03] <CaptHindsight> without a gearbox
[18:19:03] <zumba_addict> the one i found earlier is 7-8x stronger
[18:19:07] <zumba_addict> yes, without gearbox
[18:19:24] <zumba_addict> and the one you found is even better, 4Nm
[18:19:44] <CaptHindsight> 10:1 would give you 566oz in - some efficiency if the gearbox can handle that
[18:20:06] <zumba_addict> i think I'll order the one you posted :)
[18:20:10] <CaptHindsight> the gearboxes are not 100% efficient
[18:20:17] <zumba_addict> in what way?
[18:20:35] <zumba_addict> you mean, being precise?
[18:20:50] <CaptHindsight> there is some power lost
[18:20:57] <zumba_addict> k
[18:21:15] <CaptHindsight> http://www.groschopp.com/gearbox-efficiency-factors-2/
[18:21:43] <CaptHindsight> http://www.neugartusa.com/Service/faq/friction-heat-efficincy.pdf
[18:22:01] <CaptHindsight> http://www.roymech.co.uk/Useful_Tables/Drive/Gear_Efficiency.html
[18:22:22] <CaptHindsight> http://www.meadinfo.org/2008/11/gear-efficiency-spur-helical-bevel-worm.html
[18:22:53] <zumba_addict> wow, 90c
[18:23:09] <zumba_addict> mine was only at 45c and i was already very worried :) I should be fine then
[18:23:38] <zumba_addict> i'm just worried about the amp, it's 1.6a
[18:23:54] <zumba_addict> i couldn't remember the settings I configured my stepper driver
[18:24:06] <zumba_addict> i'll have to read it again using my voltmeter
[18:24:14] <CaptHindsight> a simple question turns into a pageant
[18:24:37] <zumba_addict> :)
[18:24:48] <humble_sea_bass> wait wait wait
[18:24:48] <zumba_addict> it's great though
[18:25:00] <humble_sea_bass> perpetual motion is not possible
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[18:27:22] <CaptHindsight> humble_sea_bass would do it all using hydraulics using only mahogany saw dust and PVA glue
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[18:32:48] <zumba_addict> CaptHindsight: the higher the ratio, the slower and higher torque right? so 100:1 is better than 50:1
[18:33:17] Cylly is now known as Loetmichel
[18:33:30] <CaptHindsight> yes, but remember those gearboxes have their limit of only 3-4Nm
[18:34:03] <zumba_addict> yup, that's very strong for what I need
[18:36:18] <zumba_addict> i can't figure out why companies would build a geared stepper motor at 100:1 vs 71:1 with the same price
[18:36:37] <CaptHindsight> the higher ratio also gets you more braking torque but if you go too high you might not have enough speed
[18:36:52] <zumba_addict> that's true
[18:37:26] <zumba_addict> I guess, I'll have 2 stepper motors for different requirements
[18:37:40] <zumba_addict> if I want fast, I'll just use my existing one
[18:38:03] <Loetmichel> *booooarppsss* ... i think i drink too less. i just happend to pour 2 bottles of beer into my head in less than 10 secs. seems i had a little fluid deficit ;-)
[18:38:27] <CaptHindsight> I posted enough links for you to be able to runs the numbers
[18:39:25] <zumba_addict> yup, learned a lot today :)
[18:39:33] <zumba_addict> thanks a lot for all the help
[18:39:34] <CaptHindsight> you stepper might max out at 1000 rpm
[18:39:57] <zumba_addict> i noticed that when it's fast, it cannot drag the dolly well :)
[18:40:00] <Loetmichel> CaptHindsight: usually the chap 40 V drivers and "standard" steppers max out at 600 rpm
[18:40:16] <zumba_addict> the motor was slipping
[18:40:24] <CaptHindsight> 1000rpm / 100 = 10 rpm with a 100:1 gearbox
[18:40:25] <zumba_addict> doesnt' have enough torque
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[18:40:51] <CaptHindsight> or 600rpm/ 100 = 6 rpm using Loetmichel's figures
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[18:41:35] <CaptHindsight> then use the pulley dia to figure the actual speed
[18:41:47] <zumba_addict> got it
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[18:55:57] <JT-Shop> another bash update...
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[18:59:32] <archivist> but first someone has to get into your system to exploit it, dunno what all the fuss is about
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[19:37:51] <zeeshan|2> need some advice about grounds and isolate plane
[19:37:58] <zeeshan|2> http://i.imgur.com/T4p95eT.png
[19:38:00] <zeeshan|2> top left
[19:38:21] <zeeshan|2> that ground is on one side of the isolate plane
[19:38:32] <zeeshan|2> if i were were two join both grounds at that spot
[19:38:42] <zeeshan|2> (on both sides of the isolation plane)
[19:38:51] <zeeshan|2> thats considered as no longer isolated right?
[19:39:59] <zeeshan|2> https://www.probotix.com/manuals/PBX-RF_manual.pdf
[19:40:04] <zeeshan|2> in layman terms page 2 of that diagram
[19:40:12] <zeeshan|2> on the left side, if i joined those 2 grounds together
[19:40:28] <zeeshan|2> thats considered a fail right? :p
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[19:50:22] <CaptHindsight> isolated grounds are not connected to each other
[19:51:24] <CaptHindsight> not only are they not connected they are kept at a distance from each other to keep high voltages from jumping that gap between them
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[20:01:48] <zeeshan|2> okay
[20:01:58] <zeeshan|2> i dont know why the hell the designer of this board
[20:02:09] <zeeshan|2> decided to make pin 15 on the non isolated area.
[20:03:02] <zeeshan|2> how come pin #14 is considerd an output pin only in linuxcnc?
[20:08:22] <jdh> I think in SPP mode, the control port was write-only.
[20:10:31] <pcw_home> in SPP or EPP mode its an output only (but you can read the output state back)
[20:10:59] <zeeshan|2> ah okay
[20:13:23] <pcw_home> its only an input in ECP mode which is not useful for simple I/O
[20:13:52] <jdh> or you could get a 5i25 and do wtf you want with the port.
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[20:15:40] <zeeshan|2> definitely
[20:17:45] <sirdancealot> maybe
[20:21:44] <MrSunshine> hmm .. at rapids of 4500mmin/min and a screw that has 5mm lead iw ould be at about 900 rpm on my steppers right? is that kinda pushing it? =)
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[20:34:03] <pcw_home> depends on the drives, motors, and torque required, 900 RPM might be fine with high voltage drives
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[20:36:26] <MrSunshine> hmm interesting ... been looking at three phase steppers ... apparently they deliver alot more torque at higher rpm than two phase steppers
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[20:50:46] <gene78> Need a tap holder with a .500 rear spud for putting in a small QC tool holder. Does anyone make such a beast?
[20:51:03] <gene78> thats 1/2 inch
[20:54:37] <Tom_itx> what size taps?
[20:56:30] <gene78> in this case its a 5/15-18 with a .236" shank I'm ripping up because its spinning in a 3/8" chuck
[20:56:52] <gene78> the square on the end is 3/16"
[20:57:16] <gene78> I can't type;in this case its a 5/16-18 with a .236" shank I'm ripping up because its spinning in a 3/8" chuck
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[20:58:22] <Tom_itx> something like a .500 shank collet holder?
[20:58:44] <Tom_itx> no, it's gonna have to fit .375...
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[20:59:21] <JT-Shop> I use collets to tap with
[20:59:30] <Tom_itx> i'm confused
[20:59:37] <JT-Shop> me too
[20:59:50] <Tom_itx> .500 rear spud but it's going in a .375" chuck...
[21:00:27] <Tom_itx> i got a .500 valenite collet holder once for small collets
[21:01:14] <Tom_itx> http://www.rockford-industrial.com/Presses-/ER20-floating-tap-tool-holder-er-20-straight-shank-provided_image-3.jpg
[21:01:19] <Tom_itx> something like that?
[21:01:24] <Deejay> gn8
[21:02:01] <Tom_itx> i'm guessing that shank is bigger than .500
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[21:03:19] <gene78> looks like it is. And this s/b dead rigid, for rigid tapping in my toy lathe
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[21:04:56] <gene78> I have an internal threading tool, but its usefulness starts at about 1/2", darnit
[21:05:44] <Tom_itx> http://www.carbideanddiamondtooling.com/thumbnail.asp?file=assets/images/abt/pics/emha-.jpg&maxx=750&maxy=0
[21:05:46] <Tom_itx> make one?
[21:07:00] <gene78> Or bore it on out to 7/16 and try this bar with a G76 wrapper
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[21:07:59] <Tom_itx> you just about need a collet for taps because the shanks are all different sizes
[21:08:08] <gene78> just checked, bore to 1/2" & cut a 9/16th thread
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[21:09:11] <Tom_itx> JT-Shop, ever do helicoils?
[21:09:25] <gene78> using a 3/8 jacobs hand tightener with vise grips to tighten it, and I'm ripping up the shank from slippage
[21:09:44] <JT-Shop> Tom_itx, yes
[21:10:01] <Tom_itx> are they standard taps or special for the coils?
[21:10:09] <JT-Shop> special taps
[21:10:12] <Tom_itx> oversize
[21:10:16] <JT-Shop> ye
[21:10:28] <Tom_itx> i've done em too but never payed attention to the tap size
[21:10:40] <gene78> Yeah I have , but usuall with the supplied tap for fixing it back to tyhe oEM size with the coil.
[21:10:44] <JT-Shop> they are marked heli-coil or similar
[21:11:00] <Tom_itx> did tons of VW cases for the cylinder bolts
[21:11:38] <JT-Shop> I've rebuilt a few VW engines
[21:11:52] <Tom_itx> that's one you can literally R & R in a day
[21:11:53] <JT-Shop> if you didn't line bore it the bearings would not last long
[21:11:58] <Tom_itx> right
[21:11:59] <JT-Shop> yea
[21:12:05] <gene78> All I'm trying to do is make a mount for my rider that I can hang a snow blade on it. Very very ancient chraftman rider, 38".
[21:12:06] <Tom_itx> we had a line bore thingie too
[21:12:44] <JT-Shop> gene78, you just need bailing wire for that heh
[21:12:55] <gene78> major problem, coffee cup is empty, BRB
[21:12:56] <Tom_itx> absolutely
[21:13:38] <JT-Shop> I have an ancient craftsman rider with right angle gear boxes and a single cyl briggs about 8hp
[21:14:03] <JT-Shop> big heavy cast ally front end on it
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[21:16:25] <gene78> this one is stamped sheet metal. on its 3rd 12.5 horse engine and running well yet. But those engines break the balance weight and shake like hell on their way out, so its probably got 1/4 spool of MIG wire inm the bodyworks.
[21:16:31] <Tom_itx> WTF... http://i97.photobucket.com/albums/l219/randy9944/Turretforlathe.jpg
[21:17:08] <gene78> I even found some OEM grey paint on it with a power washer last week.
[21:17:28] <toastydeath> i would rather just buy a 1000 dollar small turret lathe than use a morse taper turret
[21:17:40] <toastydeath> that seems dangerous
[21:17:46] <Tom_itx> kinda
[21:18:30] <gene78> I ain't crazy bout it, but thats whats in my micromill.
[21:19:28] <gene78> But I've been on this bum knee about my limit for the day so I think I'm headed for the house. Thanks guys.
[21:21:03] <JT-Shop> Tom_itx, I've seen those in WW2 era manufacturing films
[21:21:20] * JT-Shop heads for the shower
[21:21:23] <Tom_itx> i've seen a few of em
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[23:30:57] <zeeshan|2> fiunally
[23:31:04] <zeeshan|2> -X , -Z , e-stop switches working
[23:31:19] <zeeshan|2> i converted the +X +Z to home switches
[23:31:22] <humble_sea_bass> http://i.imgur.com/NqRJ7eN.jpg
[23:31:24] <zeeshan|2> i wonder if they can act as both home and limit switches
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[23:37:49] <zeeshan|2> so from my understanding
[23:37:53] <zeeshan|2> all i have to do is this
[23:37:59] <zeeshan|2> if pin 10 is my +X limit / home sw
[23:38:27] <zeeshan|2> net x-home parport.0.pin-10-in-not => axis.0.home-sw-in axis.0.pos-lim-sw-in
[23:38:36] <zeeshan|2> so whenever the axis is homed
[23:38:41] <zeeshan|2> it'll act like a limit s/w
[23:38:55] <zeeshan|2> and if its not homed, itll use the s/w to home
[23:38:57] <zeeshan|2> yes/no?!
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[23:44:38] <jdh> looks good to me.
[23:44:59] <jdh> I have mine on separate lines though. I get easily confused.
[23:45:05] <zeeshan|2> hah
[23:45:23] <zeeshan|2> http://linuxcnc.org/docs/html/config/ini_homing.html
[23:45:27] <zeeshan|2> do you use the second technique in the figure
[23:45:29] <zeeshan|2> or first one
[23:47:09] <jdh> the second, but both negative
[23:47:20] <zeeshan|2> okay so you home on your negative axis
[23:50:10] <zeeshan|2> what do you use for your home_search_vel
[23:50:34] <jdh> .2 on my mill, but I can overshoot the switch a little
[23:50:45] <zeeshan|2> so 12 ipm
[23:50:58] <zeeshan|2> i have lever type switches
[23:52:19] <Tom_itx> i use my switches for both
[23:52:29] <zeeshan|2> is 0.02 inch/s good enough for home_latch_vel?
[23:52:35] <zeeshan|2> or is that too aggresive
[23:52:46] <zeeshan|2> works out to 1.2 ipm
[23:52:53] <jdh> depends on the machine
[23:53:05] <jdh> mine is 0.016666666666666666666
[23:53:27] <zeeshan|2> thats an interesting number
[23:53:27] <zeeshan|2> haha
[23:53:38] <jdh> HOME_LATCH_VEL = -0.016667
[23:53:50] <Tom_itx> HOME_SEARCH_VEL = 0.50
[23:53:50] <Tom_itx> HOME_LATCH_VEL = -0.20
[23:53:57] <jdh> something generated that for me.
[23:54:02] <Tom_itx> are mine
[23:54:05] <zeeshan|2> i cant use stepconf
[23:54:11] <zeeshan|2> cause itll own my ini and hal
[23:54:34] <zeeshan|2> can you guys throw your config on pastebin.com?
[23:54:41] <Tom_itx> mine are already
[23:55:38] <Tom_itx> http://tom-itx.ddns01.com:81/~webpage/cnc/configs/sherline/
[23:55:51] <zeeshan|2> thank u
[23:55:59] <Tom_itx> steppers
[23:56:04] <zeeshan|2> same here
[23:56:52] <Tom_itx> gecko drives
[23:56:56] <zeeshan|2> s
[23:56:56] <zeeshan|2> l
[23:57:22] <t12> sdr
[23:57:24] <zeeshan|2> so home = 0.000 means that's your true position at the final s/w trip?
[23:57:25] <Tom_itx> i gotta set it back up this evening...
[23:57:38] <Tom_itx> got another pc i wanna try on it
[23:57:55] <zeeshan|2> and homeoffset = 0.1 means how much it'll back off from the switch
[23:57:57] <zeeshan|2> before final detection?
[23:58:06] <Tom_itx> i back off .1 yes
[23:58:16] <Tom_itx> as home
[23:58:45] <Tom_itx> HOME_OFFSET
[23:59:13] <zeeshan|2> its weird that that value isn't -0.1
[23:59:27] <zeeshan|2> looks like you're searching in the + direction
[23:59:45] <zeeshan|2> but i guess since you put -.2 for the latch velocity
[23:59:49] <zeeshan|2> it knows already