#emc | Logs for 2010-08-02

[00:04:06] <theorb> theorb is now known as theorbtwo
[00:07:25] <Fox_Muldr> Fox_Muldr is now known as Fox_M|afk
[00:51:00] <skunkworks> so - it looks like one of the transistors (yes transistor) shorted out in the berger lahr 5 phase stepper drive. we didn't have anything similar so we need to order a few. They are 10a 200v Vec
[00:51:13] <skunkworks> hope that is all that is wrong.
[01:24:09] <skunkworks> logger_emc: bookmark
[01:24:09] <skunkworks> Just this once .. here's the log: http://www.linuxcnc.org/irc/irc.freenode.net:6667/emc/2010-08-02.txt
[01:30:33] <madsci44> whats the purpose of that? to see if you missed anything?
[01:37:48] <skunkworks> yes
[01:37:50] <skunkworks> :)
[01:41:36] <madsci44> cool
[01:42:54] <birdman3131|zzzz> birdman3131|zzzz is now known as Birdman3131
[02:12:10] <L84Supper> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=300451741732 what's a fair price for this?
[02:13:32] <ichudov> Hi Guys, I have a spindle with a vari-drive that is engaged by a pneumatic motor. The motor is operated right now by air solenoids and by SPEED INCREASE/SPEED DECREASE switch. When the switch is held, the air motor is operating and changing the speed. I will put an encoder on the spindle and I would like to know if EMC can do speed increase/decrease and whether EMC can use encoder feedback to adjust speed. Thanks. Sorry for a
[02:14:09] <ichudov> L84Supper, I would say $1,500 will not be too much to pay. I have a 1J Bridgeport with DRO that I will be sellign shortly.
[02:14:39] <L84Supper> http://cgi.ebay.com/BRIGDEPORT-Mill-Series-CNC-No-ReservE-/120599721160?cmd=ViewItem&pt=BI_Mills&hash=item1c144db4c8
[02:14:47] <L84Supper> this ones a CNC
[02:16:44] <ichudov> L84Supper: it looks kind of hard to retrofit if you wan to retrofit, due to compact control in the head. I have a huge cabinet on my mill where I could put all my stuff.
[02:17:12] <ichudov> but the price is temptig if you are in the area.
[02:17:59] <ichudov> It looks not too much used from the look of the buttons?
[02:18:05] <L84Supper> controls are a snap
[02:18:20] <ichudov> I would think that $1k would be a safe price to pay. Plus R8 tooling is widely available.
[02:18:32] <L84Supper> I'd emc2 it with our boards
[02:18:46] <ichudov> what boards
[02:19:12] <ichudov> Safe price means, if this machine is a dud, you could always part it out and get $1k out of the parts
[02:20:03] <L84Supper> unless the quill is cracked or this is not the pics of the actual machine and it's been in the bottom of a lake
[02:20:12] <ichudov> I personally do not like those Bridgeports, they kind of look already retrofitted once
[02:20:26] <ichudov> yep
[02:20:56] <ichudov> I bought my mill for $500 and it has at least $3000 worth of parts. I sold the old control and it paid for the mill
[02:21:05] <ichudov> which is what you could also do
[02:21:24] <ichudov> Are you watching craigslist also
[02:22:11] <L84Supper> yeah and a few others, it's a reral slow time for used small cnc machines, I have tons of deals on giant machines
[02:22:26] <L84Supper> reral/ real
[02:22:26] <ichudov> I saw a Matsuura for sale for $1k
[02:22:39] <ichudov> not too big, a bit bigger than my BP, maybe 1.5 times bigger
[02:23:08] <L84Supper> we send most of parts out for production, I just need a few machines for the lab
[02:23:38] <L84Supper> just for protos
[02:24:41] <ichudov> If you look a long time you will find something perfect
[02:25:07] <L84Supper> yeah I will but now I have actual projects waiting for machines
[02:25:23] <ichudov> I see.
[02:25:33] <ichudov> Sherline is too small for you>
[02:25:34] <ichudov> ?
[02:25:36] <L84Supper> getting to the point of needing to buy new equipment if nothing comes along this week
[02:25:48] <ichudov> http://chicago.craigslist.org/chc/tls/1868176613.html
[02:26:06] <L84Supper> yes, I saw the Sherline
[02:26:27] <ichudov> no idea if this is a good price
[02:26:40] <L84Supper> I have bigger actuators sitting around here
[02:27:22] <L84Supper> I'm about to just buy a few 10K rpm quills and slap some mills together
[02:27:46] <ichudov> http://www.google.com/search?q=bridgeport+interact+site:craigslist.org
[02:27:52] <ichudov> I would not slap mills together
[02:28:02] <L84Supper> I have leftover 5um ball screw positioners that will handle 300kg loads
[02:28:03] <ichudov> this is far more expensive than buying brand bew at MSRP
[02:28:12] <ichudov> brand new
[02:29:09] <L84Supper> I have lots of positioners around, ball screw and linear motor since we build custom machines
[02:29:56] <ichudov> I cannot imagine it costing less than 3-4x the brand new cost if you factor in $20/hr
[02:30:11] <ichudov> Anyway, I have to run, good luck supper, see ya
[02:30:51] <L84Supper> http://chicago.craigslist.org/wcl/tls/1870477813.html does it al
[02:31:46] <geo01005_home> geo01005_home is now known as geo01005
[02:33:10] <cradek> L84Supper: that R2E4 is a powerful servo machine and is very easy to retrofit
[02:33:52] <L84Supper> cradek: looks beefy enough for the aluminum we usually work with
[02:34:05] <cradek> L84Supper: yes but 3500 rpm is all you get out of the spindle
[02:34:14] <cradek> that's just like the machine seb and I retrofitted recently
[02:34:50] <L84Supper> cradek: whats the spindle motor in this?
[02:35:02] <cradek> 2hp on varispeed
[02:35:09] <cradek> wtf - it says R8 - that can't be right
[02:35:18] <cradek> it's surely QC30
[02:35:43] <L84Supper> R2E4
[02:35:44] <cradek> I can't tell what's on the table - a tooling plate?
[02:35:53] <cradek> yes R2E4 is the control
[02:36:02] <cradek> same as R2E3 but with crt instead of lcd
[02:36:10] <L84Supper> ah ok
[02:36:28] <L84Supper> replacing with PC and EMC2 anyway
[02:36:31] <cradek> well - it's the model - mill and control both
[02:36:32] <cradek> yeah
[02:36:40] <cradek> it's velocity mode NC400 amps
[02:36:47] <L84Supper> I have all the control parts already
[02:37:06] <L84Supper> what do thinks it's worth?
[02:37:08] <cradek> they "don't know" if it's operational
[02:37:17] <cradek> how long is a stick?
[02:37:43] <cradek> if you could see it run and it's not totally worn out, it'd be worth something...
[02:38:02] <cradek> otherwise it might be worth a negative amount :-)
[02:38:25] <L84Supper> yeah
[02:38:39] <cradek> but if it's going for $600, you'll come out ahead if you scrap it and can keep the vise
[02:38:59] <cradek> wow, you better decide fast
[02:39:42] <L84Supper> yeah, I could swap out the quill, how is the factory one held in?
[02:40:50] <cradek> Z ballscrew is machined in the outside of the quill
[02:41:02] <cradek> Z nut spins around the quill itself
[02:41:32] <L84Supper> ass long as the casting around it is not cracked
[02:41:39] <L84Supper> heh ass/as
[02:41:55] <cradek> it's the top of the knee and underside of the table that wears the most
[02:42:19] <cradek> it's probably a fine machine but I'd expect it to be quite dead, considering the information here
[02:42:33] <L84Supper> yeah, not concerned about the controls
[02:42:42] <cradek> but really all you need is the drives, tachs, encoders to work
[02:43:10] <cradek> encoder res is 10000/inch
[02:43:15] <Jymmm> fscking eh... my garage door spring broke and HD doesn't have these ancient POS
[02:43:34] <cradek> rapids 250 ipm XY, 200 Z iirc
[02:43:52] <cradek> travel 18x12x5 + knee
[02:45:14] <L84Supper> heh at $666
[02:45:50] <Jymmm> Do they make smallish tackle type pulleys with weight rating like carabiners have?
[02:46:16] <L84Supper> I've only been finding junk around here or worn out mills for top dollar
[02:46:48] <Jymmm> I need to stretch the spring and there's no room for largish pulleys
[02:47:18] <cradek> years ago a neighbor of mine nearly lost his hand doing that
[02:47:25] <cradek> it was not pretty
[02:47:48] <Jymmm> I bet, that's why I was asking for rated pulleys, not the $2 one's.
[02:49:32] <Jymmm> My ratching nylon tie downs are just 4" too long to be of any use.
[02:50:13] <L84Supper> $885 too high without a test drive for me
[02:50:37] <L84Supper> heh went for $1269 for somebody brave
[02:50:54] <cradek> if they went and checked it out, that might be a very great price
[02:51:22] <L84Supper> could be if they are nearby, it would be +1K to ship here
[02:54:45] <L84Supper> http://cgi.ebay.com/bridge-port-tracer-mill-true-trace-B-360-3D-model-1090-/300451219053?cmd=ViewItem&pt=BI_Mills&hash=item45f449c66d tracer mill $600
[02:55:17] <cradek> meh, those go for $1 at any auction
[02:55:43] <Jymmm> $1???
[02:55:46] <cradek> more if you don't want to take the hydraulics :-P
[02:55:53] <L84Supper> heh
[02:56:15] <cradek> Jymmm: there's another thing the size of the mill with 55 gallons of hydraulic fluid in it that runs the useless thing
[02:57:18] <Jymmm> cradek: O_o that didn't make sense to me
[02:57:32] <L84Supper> CONDITION: Backlash in X app .070 and Y app 0.25
[02:57:35] <cradek> it's a tracer - not cnc
[02:57:47] <L84Supper> a quarter inch or?
[02:58:01] <L84Supper> http://cgi.ebay.com/Enco-Vertical-Mill-Milling-Machine-2-Axis-Sargon-DRO-/150472764202?cmd=ViewItem&pt=BI_Mills&hash=item2308e02b2a
[02:58:03] <cradek> I think the only thing it's useful for is copying casting patterns, and barely that
[02:58:26] <Jymmm> cradek: you mean it duplicates ?
[02:58:30] <cradek> yes
[02:58:35] <Jymmm> ah
[02:58:48] <cradek> it scans mechanically with that probe thing
[02:59:03] <cradek> you put a tool in it that's shaped like the probe and put a new piece under the tool
[02:59:33] <cradek> then you wish you had your $600 back
[02:59:45] <Jymmm> Ah, I didn't see the two heads the first time
[02:59:50] <L84Supper> works that well eh?
[03:00:02] <cradek> actually I've never seen one work
[03:00:17] <L84Supper> http://cgi.ebay.com/Okuma-CNC-Vertical-Machining-Center-MC-4VAE-SPINDLE-/150467543723?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item23089082ab less the spindle
[03:00:18] <cradek> I doubt any have been run for decades
[03:00:30] <Jymmm> Heh, replicate the engine block you've always wanted.
[03:01:36] <L84Supper> 30"x 16"x 18" not a bad work area
[03:07:51] <L84Supper> lots of Sherline mills but with Mach 3
[03:12:13] <L84Supper> this actually looks pretty solid but small http://chicago.craigslist.org/chc/tls/1869854477.html
[03:44:24] <cradek> fun little project: http://timeguy.com/cradek/01280719622
[03:46:46] <madsci44> cradek; i finally got to testing out that radcomp/tolerance on 2.5
[03:47:20] <cradek> oh right, I forgot
[03:47:22] <cradek> it works?
[03:47:57] <madsci44> yeah definitely made a big difference - velocities are similar compared with 2.4.2 now, but - different like the peaks are levelled off
[03:48:24] <cradek> not sure but I think it should be the same...
[03:48:49] <madsci44> ill paste a comparison plot
[03:48:51] <madsci44> sec
[04:02:07] <madsci44> http://imagebin.ca/view/WnGvjZ1w.html
[04:02:36] <madsci44> http://imagebin.ca/view/3CacLiy.html
[04:02:45] <madsci44> my apologies for the large image size
[04:03:53] <cradek> surprising - something must be different
[04:03:59] <cradek> same gcode same ini?
[04:04:20] <madsci44> http://imagebin.ca/view/h0FJoXn.html
[04:04:41] <madsci44> yes exactly same everything - I put both installations in and symlink to switch between the two
[04:05:05] <cradek> oh god is that your cam's idea of a circle??
[04:05:22] <cradek> sorry, that's an aside :-)
[04:06:01] <cradek> looks like 250 has a maxvel of 100 whatevers, but 243 doesn't
[04:06:26] <madsci44> lol - i made a circle with a jagged line - its like a triangle wave 0.016" peak to peak, with a period of about 0.060" to experiment with the effect of the tolerance
[04:06:56] <madsci44> well without radcomp on, the plots are much more similar
[04:07:52] <cradek> madsci44: well they both look quite acceptable to me - is that good enough for 11pm?
[04:08:17] <cradek> (I'm surprised they're different)
[04:09:17] <madsci44> yeah i thought maybe something new in the technique
[04:09:37] <madsci44> but im happy with it
[04:10:14] <madsci44> http://imagebin.ca/view/kGytu5tk.html http://imagebin.ca/view/JJBLZFIA.html
[04:10:16] <cradek> that's good
[04:10:35] <madsci44> those two are both without radcomp, no peak flattening
[04:10:43] <cradek> they're pretty much identical
[04:10:48] <madsci44> yup
[04:10:53] <cradek> huh
[04:11:36] <madsci44> so the first two plots were both with rad comp on, one was in emc 2.4.3 the other in 2.5.0pre ,, the second two plots were same tolerance setting but no radcomp , again 2.4.3 compared with 2.5.0
[04:12:26] <cradek> either I haven't asked git properly, or there aren't any differences to rad comp between 2.4 and master
[04:13:02] <cradek> I need to find a snack and get to bed - goodnight
[04:13:07] <madsci44> alrighty
[04:13:14] <madsci44> hope thats helpful anyways
[04:13:30] <cradek> yes thanks for testing all of it
[04:31:33] <geo01005_home> geo01005_home is now known as geo01005
[04:42:02] <L84Supper> cradek: nice dominoes
[04:51:08] <The_Ball> cradek, how many hours do you estimate you spent on the dominoes?
[06:42:17] <MrSunshine__> MrSunshine__ is now known as MrSunshine
[08:26:31] <cpresser_> hi, does anybody have a clue about what happened here:
[08:26:32] <cpresser_> http://pastebin.com/p871mwVp
[08:26:54] <cpresser_> is it X crahsing and taking emc2 down with it, or just the opposite?
[08:28:50] <foxtrot_> foxtrot_ is now known as foxtrot
[08:29:56] <alex_joni> cpresser_: looks like X crashing first
[08:30:19] <alex_joni> but otoh you have RT errors on that machine (maybe a Nvidia or Ati driver?)
[08:30:51] <cpresser_> i use the nv-driver, not the binary-thing
[08:30:58] <alex_joni> try vesa for any changes
[08:31:03] <cpresser_> sould i go for vesa?
[08:31:09] <cpresser_> ah okay, ill try that out :)
[08:31:24] <alex_joni> bbl
[08:42:29] <Fox_M|afk> Fox_M|afk is now known as Fox_Muldr
[10:09:13] <MattyMatt> in a 3 jaw lathe chuck, does the snail usually have 1 groove or 3?
[10:12:06] <MattyMatt> and just precisely how sick am I for contemplating making a plywood one?
[10:13:26] <alex_mobile> Depends if you want to make disposable ones
[10:13:26] <alex_mobile> Depends if you want to make disposable ones
[10:13:47] <MattyMatt> actually I'm getting over that. my plywood clamp is getting floppier as it wears
[10:14:44] <MattyMatt> so it's too hard to tell when I should dispose of it
[10:15:43] <bootnecklad> http://www.youtube.com/watch?v=EKL6elkbFy0
[10:15:45] <bootnecklad> Awesome
[10:20:48] <MattyMatt> is that collet chuck made for one specific diameter?
[11:15:18] <maximilian_h> Hello
[11:15:51] <maximilian_h> has anybody extended the axis gui with own code besides pyVCP ?
[11:16:13] <maximilian_h> My problem is that pyVCP does not retain settings over a restart of the gui
[11:16:20] <maximilian_h> and I'd like to keep settings
[11:16:39] <maximilian_h> I'd like to know if there is maybe an example
[11:48:03] <maximilian_h> Is there some documentation on the structure of the python source files that make up axis ?
[11:50:27] <micges_work> maximilian_h: only source code
[11:50:37] <maximilian_h> Hey Micges
[11:50:44] <micges_work> hi
[11:51:08] <maximilian_h> you always seem to have encountered my problems before me :)
[11:51:58] <maximilian_h> by source code you mean the files in ./src/emc/usr_intf/axis/
[11:52:55] <maximilian_h> ?
[11:53:58] <micges_work> if you want to extent vcp controls you must look at ./lib/python/pyvcp_widgets.py
[11:56:10] <maximilian_h> Is extending the vcp not too much for a quick hack ? I just want a button have have the button's state saved in one file
[11:56:20] <maximilian_h> like a pyvcp with persistance
[11:57:15] <maximilian_h> and writing a generic pyvcp extention to save button states, well I am unfortunately not that firm with python :(
[11:59:08] <micges_work> I think it could be done as quick hack
[12:00:44] <maximilian_h> have you got any ideas ? Maybe a python module I could use for the file to save the state ?
[12:01:29] <micges_work> sorry I'm quite busy right now
[12:02:29] <maximilian_h> sorry to have disturbed you, thanks for your help
[12:07:46] <micges_work1> it's ok
[13:23:15] <cradek> The_Ball: maybe 4-5 hours including writing the gcode
[13:55:10] <alex_joni> cradek: was that alu?
[13:55:45] <cradek> yes
[13:56:05] <cradek> a piece of scrap 1/4 thick
[13:57:41] <alex_joni> they look very nice
[13:57:46] <cradek> thanks
[13:58:05] <skunkworks> That is cool. :)
[14:00:17] <cradek> I had a little trouble generating the spots. you can order dominoes: 0,0 1,0 1,1 2,0 2,1 2,2 3,0 ... but can you directly calculate the spots on the nth domino?
[14:01:03] <skunkworks> * skunkworks would have bought a cheap set and copied them... ;)
[14:01:22] <cradek> oh I know the patterns - I mean for generating the gcode
[14:01:34] <skunkworks> oh - heh
[14:01:35] <alex_joni> cradek: hmm.. should be possible to have a function
[14:01:47] <cradek> alex_joni: I agree :-)
[14:02:04] <alex_joni> they go up to 6,6 ? right?
[14:02:14] <cradek> they can go much higher
[14:02:23] <cradek> 9,9 is common, and there are sometimes even more
[14:02:35] <cradek> the function should be able to calculate any size domino
[14:03:16] <alex_joni> so they are always above the diagonal.. right?
[14:03:22] <cradek> wonder what the 1e10th domino is
[14:03:50] <cradek> yes triangular including the middle diagonal
[14:04:14] <alex_joni> then it seems pretty easy to calculate (not by hand though)
[14:04:33] <cradek> I did it iteratively because I could not come up with a closed-form solution
[14:04:37] <alex_joni> you always have 1+2+3+4+..
[14:04:45] <alex_joni> that's n(n+1)/2
[14:04:59] <morficmobile> how much data can i collect out of emc2 w/o writing anything new, provided that drives/allelse provide that info?
[14:05:17] <cradek> morficmobile: can you ask a more specific question?
[14:07:47] <morficmobile> how much is accessible from external programs rather than from within emc2? tool#, rpm, load, switches in open/closed position (to check high vs low gear when recording load, to check if coolant on/off when recording load/data)
[14:08:50] <morficmobile> we have sheets for machinists to write down cut data, they do not do it often enough, so boss wants to write down a lot through the control, for later evaluation for process improvement
[14:09:06] <cradek> if your external program is a hal component, you could hook up those kinds of things to it using hal
[14:09:55] <alex_joni> cradek: you can do it, but it's a bit complicated
[14:10:04] <alex_joni> say m is the number
[14:10:06] <cradek> to get something like spindle load, you'd need to get that into the machine somehow, perhaps with an adc
[14:10:31] <alex_joni> we first calculate the first number of dots (n)
[14:11:06] <alex_joni> n = (-1 + sqrt(1+8*m))/2
[14:11:09] <morficmobile> cradek: yes, anything that emc2 has access to, i first have to get load into emc2
[14:11:41] <alex_joni> you take only the int part of n, or round down
[14:12:00] <morficmobile> so far i only talked about reacting to load within emc2, this new data collection would mean some program collecting and storing the data
[14:12:23] <alex_joni> then for the second numer: m-(n(n+1)/2)
[14:14:11] <cradek> I think the 1e10th domino would be in a double-141422 set
[14:16:08] <alex_joni> 141420, 121090
[14:16:20] <cradek> cool!!
[14:16:28] <alex_joni> at least I think so..
[14:16:54] <alex_joni> I wonder how you could play those..
[14:17:02] <cradek> not easily
[14:17:10] <alex_joni> "that's a 141420 tile", "no, clearly it's a 141422"
[14:17:13] <cradek> how did you come up with your answer?
[14:17:20] <alex_joni> see formula above
[14:17:29] <cradek> I mean the formula
[14:17:49] <alex_joni> started from n(n+1)/2
[14:18:13] <alex_joni> that's the sum for consecutive numbers (triangle diagonal) 1+2+3+4..
[14:18:59] <alex_joni> so if n(n+1)/2 = m (the one we're looking for) -> n^2 + n - 2m = 0
[14:19:50] <alex_joni> that has n = ( -B +- SQRT( B^2 - 4AC ) ) / 2A
[14:20:12] <alex_joni> in our case since we want positive numbers we only care for the + solution
[14:20:36] <alex_joni> so n = (-1 + sqrt(1 - 8*m))/2
[14:21:07] <alex_joni> but you only get an integer result if m is on the diagonal
[14:21:36] <alex_joni> else n is the column, and we need to substract n*(n+1)/2 from m to get the row too
[14:22:45] <theorb> theorb is now known as theorbtwo
[14:23:12] <alex_joni> it's a bit hard to explain clearly on irc ;)
[14:23:13] <cradek> you are more clever than I am :-)
[14:23:21] <alex_joni> I doubt that
[14:41:32] <foxtrot> if im going to use spdt bump-levers as limit switches, which ones should i use, and is that the best solution
[15:13:23] <alex_joni> hehe: http://slashdot.org/comments.pl?sid=1079583&cid=26318873
[15:16:26] <micges> hi all
[15:16:27] <micges> we have in Poland useless hostings services, can you recommend me some good europe wide ?
[15:20:50] <cpresser_> micges: i am quite happy with this one: http://www.server4you.net/
[15:21:08] <cpresser_> its running my vserver for almost 5years without one error
[15:21:22] <micges> what's up time?
[15:21:54] <micges> my hoster had up time 40% in last month
[15:21:58] <cpresser_> currently 198days.
[15:22:36] <micges> ok thanks, I'll take a look
[15:45:49] <cradek> hi seb
[15:46:10] <maximilian_h> Hey Micges, what kind of traffic, just some GB or do you want unlimited traffic, vserver or a dedicated machine ?
[15:46:42] <seb> hi cradek :-)
[15:47:15] <micges> few GB vserver
[15:47:17] <cradek> pics of yesterday's project at http://timeguy.com/
[15:48:19] <seb> nice project chris
[15:48:28] <seb> did you use a ball-end mill for the dots?
[15:48:36] <cradek> no, they are flat on the bottom
[15:48:51] <ries> cradek: I like the dominoes
[15:48:53] <cradek> 1/8 2 flute end mill
[15:49:20] <seb> did you helix down or just plunge?
[15:49:29] <cradek> just plunge
[15:49:35] <seb> nice & simple :-)
[15:49:59] <cradek> the dominoes are slightly small at 1.25 long, it's a "travel" set
[15:50:41] <seb> did you make the line between the two number-areas with a smaller endmill? three tools in the first setup, then the drill-mill for chamfering in the next two setups?
[15:50:46] <ries> cradek: easy to bring on the plane I assume?? :D
[15:50:51] <seb> hah
[15:51:19] <cradek> seb: the center line and outside chamfer was done with one of those 90 degree pointy drill-mills
[15:51:31] <cradek> so 3 tools altogether
[15:52:00] <seb> oh ok, it looked like it had a flat bottom in the first and second pics but i now see the V bottom in the fourth pic
[15:52:30] <cradek> the tool does make a tiny flat
[15:52:31] <seb> why not chamfer the first side as part of the first setup?
[15:52:53] <seb> i haven't tried my drill-mill yet, but hope to this week some night
[15:53:27] <cradek> seb: because of height control problems. the scrap I used was very long and thin, and wasn't held down that great. I was afraid the chamfers would not all match.
[15:53:50] <seb> gotcha
[15:54:15] <seb> work-holding is always^Woften tricky & interesting :-)
[15:54:16] <cradek> but yeah, if I was to make more, I'd find a way to hold it down better (mostly by using a more square piece of stock), and save a lot of that work
[15:54:26] <cradek> yep
[15:54:48] <cradek> 2/2 people who came in the shop while I was cutting this told me I was crazy for cutting .005 from the table surface
[15:55:10] <seb> would you use a drill-mill for engraving (for example) text on a control panel? Or would you use a small end-mill or a carbide burr or something else?
[15:55:38] <seb> .005 off the table sounds ok to me, if you touched off on the table instead of on the work piece
[15:55:47] <cradek> I'd use a 1/4 drill-mill or a 1/8 pcb engraving V tool if I wanted it small
[15:56:35] <seb> cool
[15:56:47] <seb> spinning as fast as your spindle will go?
[15:56:55] <cradek> yes, or faster :-)
[15:56:58] <seb> heh
[15:57:31] <seb> i'll be doing my first text engraving soon, just writing some dimensions & notes on a fixture plate :-)
[15:57:39] <cradek> neat
[15:57:50] <cradek> for that, a 1/4 mill-drill is fine, since the lettering doesn't have to be particularly small
[16:18:31] <JT-Work> seb: I use 60 degree single flute engraving tools from Onsrud like these http://www1.mscdirect.com/CGI/NNPDFF?PMPAGE=613&PARTPG=N2DRVSH&PMT4NO=90851092&PMITEM=05479084&PMCTLG=00&PMT4TP=*LTIP
[16:20:28] <cradek> I use these for small engraving: http://www.thinktink.com/stack/volumes/voli/store/mechmill.htm
[16:21:04] <cradek> preferably in a high speed spindle: http://timeguy.com/cradek-files/emc/stethem-spindle-on-max.jpg
[16:23:50] <JT-Work> here is where I tried to engrave my vise with a 3/4" end mill http://i47.photobucket.com/albums/f163/johnplctech/Machine%20Shop/HPIM0598.jpg
[16:24:44] <eztam> engraving rulez ?
[16:25:38] <seb> JT-Work: ouch
[16:26:06] <JT-Work> I'm over it now I did that a couple of years ago :)
[16:27:57] <maximilian_h> @micges: I can recommend http://www.vsell.de. They only offer vservers, but they are really at a good price. I am using them for anything but big websites and email servers. Price is 6 EUR per month
[16:28:13] <elmo40> JT-Work: ya, seen that done MANY times... (hitting the vice)
[16:28:22] <micges> maximilian_h: many thnaks
[16:28:31] <micges> thanks
[16:28:38] <maximilian_h> I've been using them since last year
[16:28:41] <elmo40> silly people changing work coordinates or not testing a program alteration before they go 100% :P
[16:28:51] <maximilian_h> so far no problems or downtimes
[16:29:15] <cradek> yes hitting a vise is very common -- but hitting one's own vise paid for out of one's own pocket is very uncommon
[16:29:41] <elmo40> oh is it now...
[16:30:04] <maximilian_h> @micges: Glad to be able to help
[16:30:05] <elmo40> I used to work for a guy that trusted all of his programs. ran at 100% EVERY time.
[16:30:14] <elmo40> said 'why waste time' what a fool he was.
[16:30:22] <Birdman3131> http://blog.makezine.com/archive/2010/07/125-piece_puzzle_in_6_different_met.html and http://www.youtube.com/watch?v=2Po64G72gQo This been mentioned here before?
[16:30:27] <elmo40> broke so many tools I don't know how he even made money!
[16:31:57] <elmo40> cradek: nice domino set :)
[16:32:14] <cradek> thanks!
[16:34:16] <geo01005_home> geo01005_home is now known as geo01005
[16:46:34] <JT-Work> in this picture does B6 indicate the mounting flange? http://img.auctiva.com/imgdata/1/1/5/7/0/3/5/webimg/280242949_tp.jpg
[16:49:44] <elmo40> I don't think so. I think there is only C and D flange styles
[16:50:03] <JT-Work> it's a metric motor not a nema
[16:54:40] <elmo40> I don't see it anywhere.
[17:02:29] <elmo40> this is a cool site! http://www.engineeringmotion.com/videos/load/recent
[17:08:20] <madsci44> I love the dominoes project :) I've been contemplating almost exactly that method (cutting them into islands from a larger piece to speed up a job for similarly shaped parts i have to do
[17:14:59] <madsci44> cradek; I ran that plot again today and now everything is identical between versions. I tried also to intentionally ilmit the feedrate and got identical to the other pattern so im confused now - something was causing the feedrate to limit when radcomp on? maybe a register?
[18:00:42] <elmo40> I was donated this the other day. 1Hp Leeson DC motor with PWM controller http://bayimg.com/gAodoaAcb
[18:00:42] <cradek> madsci44: the cut-almost-through-then-smack-with-hammer method works great - I use it all the time
[18:01:00] <elmo40> any idea what I could use it for? the speed is controlled with an 'analog' trim pot
[18:01:13] <elmo40> how could I digitize it so EMC can control it?
[18:03:37] <cradek> put an opto where the pot is
[18:06:44] <madsci44> thats good to know - i was worried how they might lift when only supported by the thin section - I figured just planning the order of what cuts close in on bottom first would solve that
[18:10:24] <cradek> they usually don't - sometimes you have to fiddle with the thickness until it works right
[18:10:52] <cradek> I had to remake the 3,3 domino because it tore free and got gouged up - no big deal
[18:11:41] <cradek> if the workpiece is thin and not clamped well enough, it'll lift enough by cutter pull to cut all the way through
[18:13:51] <madsci44> ill be trying it in 1" steel plate
[18:14:14] <cradek> let me know how it works - I always use aluminum.
[18:14:19] <IchGuckLive> new pocket.py slightly divergenz in drawing to g-code on spiral mode http://www.pictureupload.de/originals/pictures/020810201332_pocket_v1_c.png
[19:10:30] <robh__> some intrested videos if not already been seen.. http://www.youtube.com/watch?v=YDKuNYDzXl8
[19:14:15] <andypugh> Since wednesday the 5v PSU in my CNC machine, the monitor PSU for my new CNC machine and my cable TV box have all died. This is beginning to look like more than coincidence.
[19:21:30] <Jymmm> alex_joni: Fsck me *sigh* http://cgi.ebay.com/Nikon-D70-Digital-SLR-Camera-18-70mm-Lens-Kit-BOX-/330456434232?cmd=ViewItem&pt=Digital_Cameras&hash=item4cf0bd0638
[19:22:23] <Jymmm> andypugh: Ouch, dirty mains?
[19:23:08] <andypugh> Could be, but I have never had any trouble in the past
[19:23:51] <Jymmm> andypugh: new load in the house? washer, dryer, frig, AC, heater, hair dryer, etc?
[19:24:00] <andypugh> No, nothing new at all.
[19:24:44] <Jymmm> you dont have a logging DVM do you?
[19:25:09] <andypugh> No.
[19:25:46] <Jymmm> I was going to suggest logging for brown outs spikes
[19:25:51] <archivist_attic> sounds like a grounding/earth loop problem
[19:26:01] <alex_joni> Jymmm: so?
[19:26:38] <Jymmm> alex_joni: That was the camera that got stolen. The one I paid like $1500+ accessoeries forr
[19:27:01] <andypugh> The very same one, or just similar?
[19:27:19] <Jymmm> andypugh: Same model Nikon D70 Kit
[19:27:23] <alex_joni> I'm sure the price will go up
[19:27:26] <alex_joni> 6d to go
[19:28:12] <Jymmm> alex_joni: lots of them up there like that
[19:28:17] <Jymmm> ~$100
[19:29:03] <alex_joni> RealFeel(R): 99F
[19:29:16] <alex_joni> weather today :/
[19:29:17] <Jymmm> ?
[19:29:26] <alex_joni> http://www.accuweather.com/en-us/ro/timis/timisoara/details.aspx
[19:29:33] <Jymmm> oh
[19:30:12] <Jymmm> http://www.google.com/search?q=weather+san+jose+ca
[19:31:22] <alex_joni> nice and cool
[19:34:40] <cradek> http://www.accuweather.com/en-us/us/ne/lincoln/quick-look.aspx
[19:36:03] <Jymmm> Lincoln must border Romania =)
[19:36:38] <Jymmm> cradek: RealFeel 107F - FSCK ME, you poor bastard!
[19:37:02] <cradek> ha
[19:37:04] <Jymmm> * Jymmm HATES humidity
[19:37:07] <cradek> it's fine, we're used to it
[19:38:47] <andypugh> 17C here...
[19:38:52] <andypugh> http://www.accuweather.com/ukie/index-forecast.asp?postalcode=basildon&Submit1=GO%21
[19:39:29] <andypugh> Cool for what we laughingly call "summer"
[19:42:28] <elmo40> cradek: what do you mean an opto ?
[19:42:52] <elmo40> there no bot in here?
[19:42:56] <elmo40> !weather toronto ontario
[21:10:05] <alex_joni> elmo40: no bots, we do it the hard way.. google
[21:14:07] <skunkworks_> http://www.machsupport.com/forum/index.php/topic,15502.msg104086.html#msg104086
[21:14:54] <alex_joni> skunkworks_ is tricking us to the dark side
[21:15:50] <skunkworks_> don't click on it!! ;)
[21:16:58] <alex_joni> doesn't open here anyways
[21:17:21] <skunkworks_> really?
[21:17:32] <celeron55> same here
[21:17:41] <celeron55> no response
[21:18:05] <skunkworks_> heh - there is a joke in there somewhere... ;)
[21:19:42] <skunkworks_> yes - I must have taken the forum down.
[21:19:43] <andypugh> Why do Mach control panels look like they have been run through the Geocities filter? ( http://wonder-tonic.com/geocitiesizer/index.php )
[21:20:56] <cradek> shush, they say it's a feature. don't make fun of them.
[21:22:34] <andypugh> Anyway <moan> I paid £15 for an Aerial lead (the choice of shop is limited at 9pm) and found that the previous owners took the power supply for the masthead amplifier with them when they moved out, so I still have no TV.
[21:22:47] <andypugh> ooops.. </moan>
[21:23:36] <andypugh> Oh, and cutting a hole in the back of the TV unit to access the aerial box, I drilled straight into the Cable TV connector....
[21:24:09] <andypugh> Which is something else the so-called cable "engineer" might have to fix.
[21:27:56] <cradek> skunkworks_: it's still loading - the title is there now
[21:30:14] <skunkworks_> well - that is going to be anticlimatic.
[21:30:54] <skunkworks_> bbl
[21:34:12] <alex_joni> "It's been a long time since Turn recieved any attention in the past years. At least threading was fixed, there is an improved screen set if one wishes to use it, and hopefully LazyTurn will reach an anticipated level this year. Other than that there has been Zip!"
[21:34:28] <cradek> yay screenz
[21:34:50] <alex_joni> http://wonder-tonic.com/geocitiesizer/content.php?theme=3&music=11&url=timeguy.com <- that's funny
[21:39:58] <cradek> as if my site didn't look dated enough already
[21:41:13] <andypugh> www.bodgesoc.org really and truly hasn't been changed since 1996. It has moved server a few times, but has not been changed.
[21:41:44] <andypugh> No, I tell a lie, I added the eclipse trip link in 1999.
[21:51:13] <alex_joni> cradek: it doesn't ..
[21:58:21] <alex_joni> andypugh: you don't happen to remember where you stayed here: http://www.bodgesoc.org/eclipse/12.html ?
[22:02:21] <alex_joni> andypugh: anyways, it was quite a fun read, you should come back for a visit, a LOT has changed in the past 11 years
[22:04:26] <geo01005_home> geo01005_home is now known as geo01005
[22:09:52] <andypugh> So a Romanian woman I know insists. She seemed positively hurt that I felt more comfortable in Hungary
[22:10:17] <alex_joni> well.. that's debateable
[22:10:25] <andypugh> And the Zagreb Hell's angels emailed me a few years back sounding a bit miffed <yikes>
[22:11:05] <alex_joni> hungary had a couple years head start, and they are still a couple years ahead
[22:11:32] <alex_joni> but I think you find more people speaking english in romania.. so that might balance things out
[22:11:48] <alex_joni> so.. happen to know where you stayed?
[22:11:56] <andypugh> I think it was mainly that Szeged was a university town, on a lovely summer evening, with an eclipse imminent and a real party atmosphere. It felt like Edinburgh during the Festival, but with prettier girls.
[22:12:03] <andypugh> I can try to find out.
[22:12:17] <alex_joni> it's not _that_ important
[22:12:39] <alex_joni> reminded me of a place called Minish..
[22:13:24] <alex_joni> if it doesn't ring a bell, it's probably somewhere else and not that important
[22:13:25] <andypugh> The route link says Nadlac
[22:13:34] <alex_joni> ah,k
[22:13:39] <alex_joni> that's near the border then
[22:15:49] <andypugh> Yes, I think it was
[22:59:19] <elmo40> cradek: I don't know if you replied or not. but you mentioned something about an 'opto' that I could use to digitally control the PWM for the motor. What is that?
[23:01:27] <andypugh> I assume he meant an opto-isolator?
[23:41:16] <Fox_Muldr> Fox_Muldr is now known as Fox_M|afk