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[00:03:09] <__rob> anyone know how accuracte a digial probe is meant to be ?
[00:03:14] <__rob> the one i have is tormachs
[00:03:24] <__rob> can't find data from them on exactly who makes it
[00:05:27] <CaptHindsight> __rob: like this one?
https://www.youtube.com/watch?v=jf2BaJ0N_ZA
[00:05:54] <__rob> yeah
[00:07:08] <__rob> http://www.tormach.com/product_tts_digitizing_probe.html
[00:07:11] <__rob> this one to be exact
[00:08:02] <CaptHindsight> are the specs not on that page?
[00:11:23] <__rob> not that I can find
[00:11:47] <__rob> uhh, wait after a refresh its loaded a table
[00:11:48] <__rob> uhh
[00:12:10] <__rob> there is no way I am getting those kind of tolerances
[00:12:37] <CaptHindsight> the machine is less accurate than the probe
[00:12:51] <__rob> I probe left and right of a part, did it again later after some cuts and was 0.02mm different
[00:12:59] <CaptHindsight> unless the probe is worn
[00:13:05] <__rob> nope, hardly used
[00:13:46] <__rob> doesn't actually spec repeatability there
[00:13:50] <CaptHindsight> maybe your machine needs aligning and delashing
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[00:44:42] <Duc> is there a way to always display machine position on the side while the main screen shows the current position in offset
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[01:34:46] <PetefromTn_> Wow it is windy as hell outside over here tonight. I drove my wife to the store to get some Cream cheese for a CHeesecake she is making for a lady at her work who is retiring and it felt like my Van was gonna get blown over LOL.
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[02:40:07] <witnit> oooh homemade cheesecake
[02:46:16] <witnit> _rob so .008 thousands seems like a terrible amount to be off
[02:48:43] <witnit> is it equally off on both sides of the part or just one way?
[02:58:57] <PetefromTn_> yeah man she makes some damn good Cheesecake...
[02:59:38] <witnit> I think it takes like 6 blocks of phili
[02:59:43] <witnit> so worth it
[03:00:49] <PetefromTn_> yeah I think 5 but yeah...
[03:00:56] <Duc> time to see how a vendor on ebay takes my low ball offer for a 4th axis
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[03:01:09] <PetefromTn_> nice man good luck
[03:01:33] <witnit> Whats the common practice for making ladder logic to toggle an output on a timer?
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[03:01:38] <Duc> untested 4th's are not worth $5,000 but for 500 it is
[03:10:08] <Erant> Has anyone played with the IR distance sensors as a way of aproximating where your slide is?
[03:11:15] <Erant> Right now I'm manually zero-ing my axes, but I'll probably add some limit switches. Finding zero manually means running the table as fast as it'll go until I get close and then slow down a little.
[03:11:47] <Erant> I don't particularly enjoy the thought of ramming my table at 60-100IPM into a limit switch.
[03:12:10] <Erant> So I figured maybe the IR distance sensors can give me an idea of sort-of where the slide is and go from there.
[03:13:40] <Duc> plasma table?
[03:13:48] <Erant> Regular mill
[03:17:07] <witnit> Erant: why would your table hit the switch?
[03:17:21] <Duc> why not use a slow speed and just set it to do all and drink a coffee
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[03:22:15] <PetefromTn_> If you put the limits and homes on it you never have to worry about where the table is anymore and linuxCNC can even tell you when your program is beyond those limits. Now that I have a machine running linuxCNC that uses these features I can't imagine NOT having it anymore..
[03:24:32] <t12> http://www.ebay.com/sch/m.html?_odkw=&_sop=10&_ssn=tool-in-the-box&_armrs=1&_osacat=0&_from=R40&_trksid=p2046732.m570.l1313.TR12.TRC2.A0.H0.Xbulova.TRS0&_nkw=bulova&_sacat=0
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[03:29:27] <Duc> Linuxcnc can use both the home and limit switch as one if you want.
[03:30:24] <Duc> have it hit the limit then move off the switch a set amount
[03:31:25] <Erant> witnit: Because if it's going fast, it can't decel fast enough in the space between hitting the limit switch and the end.
[03:32:58] <witnit> but your limit switch doesnt have to be at the end of the table you could use it from the side, and if there is overshoot it would just go past
[03:35:13] <Erant> Pondering how I would do that.
[03:35:14] <witnit> imagine putting a limit switch on a rotary axis, there is no end, you just add a tripdog or a little bump to the outside of it and when it goes past it bumps it
[03:35:37] <Erant> Yeah, I have my machine in my head, I'm trying to think where it goes.
[03:36:15] <witnit> technically you could put the switch anywhere across the front of the table
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[03:36:23] <witnit> and it would still work
[03:38:45] <witnit> you can home at lets say 15 inches in from the end of your slide and put a homing offset in and call it 0 @ 15 inches away from the switch. your options are dare i say limitless
[03:40:45] <PetefromTn_> I see what you did there ;)
[03:40:50] <witnit> jhajhhjaajha
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[04:17:49] <evil_ren> omg u did a funnt
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[04:42:02] <joem_> hio
[04:42:17] <joem_> building a flood table for my milling machine, wondering if anybody has a suggestion for a drain for my flood table
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[04:48:56] <witnit> try a hole :P
[04:51:35] <joem_> yeah sounds good
[04:51:38] <joem_> i was just thinking that
[04:51:42] <joem_> why not just epoxy a pipe into a hole
[04:51:46] <joem_> before i waterproof it all
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[05:37:29] <Erant> Hmm. Damn. I didn't know coolant systems needed such a beefy compressor...
[05:45:15] <Crom> get a bathroom sink drain, drill a hole, flange it a bit, cut a coupling to cover up the airholes and put a stopper in it. You can then use a faucet drain rod to open and close the drain.
[05:47:57] <toastyde1th> just quick suggestion, make sure the hole is large enough to be cleaned easily so that when it clogs up you aren't struggling with it
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[05:56:24] <Crom> other way is to weld a 2 1/2" nipple to the table and use a 2 1/2" ball valve. Pretty much no clogging that
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[06:44:33] <Lowridah> nipple
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[07:55:32] <Deejay> moin
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[07:58:46] <witnit> mojn!
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[08:32:07] <witnit> Smallest possible motherboard that still drives EMC? anyone found it yet?
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[08:36:37] <pink_vampire> I need help with mecanical design
[08:36:54] <archivist> angle grinder
[08:37:29] <jfindley> pink_vampire: You need some moonshine.
[08:40:17] <pink_vampire> I'm trying to design a kinematic mount that rotate 180 deg - lock at 0, and lock at 180
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[08:41:03] <archivist> look up hirth joint
[08:41:44] <archivist> make a version that has only 2
[08:42:20] <pink_vampire> how I can machine it?
[08:42:56] <witnit> what are you using it for?
[08:43:31] <pink_vampire> some project
[08:44:19] <archivist> https://www.youtube.com/watch?v=-WacJOVzxmY
[08:47:26] <pink_vampire> ok..
[08:48:11] <pink_vampire> now.. how you can change the angle from 0 to 180 with only 1 motor.
[08:48:57] <pink_vampire> you need to push one part, rotate 180 deg, and pull is back
[08:49:27] <witnit> so you want to design cams into it?
[08:49:58] <pink_vampire> yeah.. somthing like that..
[08:50:31] <witnit> a pneumatic locking mechanism would probably require much less effort in the design process than trying to math it out
[08:50:57] <pink_vampire> it's have to be electric.
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[08:51:23] <witnit> does the machine have to rotate +180 then -180 or 180 to 360?
[08:51:36] <pink_vampire> 0 to 180
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[08:51:43] <pink_vampire> like an arm
[08:51:51] <archivist> I just use an ordinary rotary table
[08:51:52] <witnit> that makes it easier
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[08:52:56] <pink_vampire> archivist: It's have to be all the time on the same place.
[08:53:01] <witnit> if you do it like that then you could just place a spring under the unit to lift it when you move back toward 0 and at each end of your rotation you drive it into a wedge drawing it down tight to the spring
[08:53:36] <pink_vampire> i need to move a part that look like a niddle
[08:55:21] <witnit> niddle?
[08:55:34] * archivist demands niddle pics
[08:55:56] <witnit> definately wanna see those niddles
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[09:25:42] <pink_vampire> I don't have them yet
[09:25:54] <pink_vampire> but I have basic design to show you
[09:26:36] <pink_vampire> http://i.imgur.com/zA3RgLz.png
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[09:28:30] <pink_vampire> the red plate is fixed, and the gray part is rotating, and use kinematic connector to make sure it go all the time to the same place
[09:28:58] <pink_vampire> archivist: ? witnit?
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[09:31:14] <archivist> do you realise a hirth joint is a development of that
[09:32:34] <pink_vampire> it's foing to hold about 1-2 grams..
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[09:32:53] <pink_vampire> going*
[09:33:05] <pink_vampire> but the joint is not importent.
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[09:34:01] <pink_vampire> the problem is how to separate the parts, and rotate them in 180 dec
[09:35:33] <pink_vampire> archivist: ?
[09:41:10] <archivist> you might be over thinking the job as usual, accuracy needed yes/no, rotate or forward/backward, a simple solenoid for something that light
[09:43:19] <pink_vampire> where I can get solenoid like that?
[09:45:05] <archivist> you can use a lever and stops with a linkage from a short stroke solenoid
[09:45:34] <archivist> or a coil like in a meter movement
[09:46:43] <pink_vampire> I need about 3mm od travel
[09:46:47] <pink_vampire> of*
[09:47:46] <pink_vampire> http://www.ebay.com/itm/DC12V-10mm-Stroke-25N-Force-Pull-Push-Open-Frame-Solenoid-Electromagnet-/351104076146
[09:47:53] <pink_vampire> something like that?
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[09:55:03] <archivist> you can also use a gear on the shaft and a rack on the solenoid to push pull the rack
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[10:34:18] <XXCoder> heys
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[11:02:26] <__rob> just put my dual dial indicator on the mill
[11:02:48] <__rob> on the table there is 2 thousandths different between the front and the back off the table
[11:03:00] <__rob> front and back of the dial indicator
[11:03:31] <__rob> http://assets.machine-dro.co.uk/media/catalog/product/cache/8/image/56969bb131e7f6de9ec78c697c28dd3e/e/d/ed-09-00-box_1.jpg
[11:03:33] <__rob> one of these
[11:03:40] <__rob> so its oriented along the Y axis
[11:04:46] <__rob> hmm and the same on the X asis
[11:04:47] <__rob> axis
[11:05:13] <archivist> is that when rotated 180 to check
[11:05:28] <__rob> ohh, nope, brb
[11:06:34] <malcom2073> Heh, tilted spindle perhaps
[11:07:03] <__rob> ughh, ok, no
[11:07:07] <__rob> one side always moves first
[11:07:11] <__rob> bloody tool is wrong
[11:07:20] <archivist> you have to 0 it :)
[11:07:25] <__rob> how tho ?
[11:07:35] <__rob> with a height gauge or something?
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[11:08:30] <XXCoder> rotate the dials I guess
[11:08:38] <XXCoder> never used that thing so dunno
[11:08:55] <archivist> you are looking for a match when rotated, can you rotate the blue outer to set 0 on both
[11:08:56] <__rob> ahh to be fair there is a manual
[11:09:06] <__rob> not like an ebay item to have one :)
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[11:14:56] <XXCoder> right after they sign the statement against gay marrage...
https://6682-presscdn-26-26-pagely.netdna-ssl.com/images/2016/02/GettyImages-509827230.jpg
[11:15:01] <XXCoder> :P
[11:18:10] <__rob> right, looks perfect
[11:18:18] <__rob> maybe 1/6 of a thou on the y
[11:18:21] <__rob> 1/16 rather
[11:18:38] <XXCoder> 1/16 of a thousandth? yeah thats quite good I'd think
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[11:21:05] <__rob> yea, lash in the z is 1/2000
[11:21:21] <XXCoder> I need to get that thing lol
[11:21:21] <archivist> near enough to machine a gnats cock
[11:21:42] <XXCoder> hey is there single dial indictor holder for spindle?
[11:22:06] <__rob> I have a standard one held in a bolt at the moment
[11:22:18] <archivist> it is so simple , a bit of 1/4" rod
[11:22:19] <__rob> one that comes with the magnetic base
[11:23:11] <_methods> yes you can use and indicol
[11:23:35] <XXCoder> where do i find attachmentments that can replace dial indictor back?
[11:23:42] <XXCoder> ie: magnetic or whatever
[11:23:58] <archivist> make odd stuff
[11:24:06] <_methods> most any place that sells indicators lol
[11:25:25] <XXCoder> mines carrson
[11:25:34] <XXCoder> cheap one but yeah
[11:25:53] <XXCoder> .01 mm should be suffecent for my machine, even if it probably has less precision than that.
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[11:39:22] <__rob> https://goo.gl/photos/PjzmNFJVDQx612yr6
[11:39:24] <__rob> so thats my X
[11:39:28] <__rob> Y and Z are identical
[11:40:08] <__rob> so with correct tooling I should be able to get close to a thousandth in parts ?
[11:40:19] <archivist> google makes a very poor image site, cant see it
[11:41:07] <varesa> has anyone in europe bought a mesa fpga card?
[11:41:09] <__rob> ohh its a video
[11:41:19] <varesa> I'm wondering about what the shipping costs will be etc.
[11:41:55] <_methods> so what are you showing in that video?
[11:42:02] <__rob> bkaclash
[11:42:10] <__rob> 10 steps forward then backward
[11:42:16] <_methods> ah ok
[11:42:29] <_methods> well that's probably not the best way to measure lash
[11:42:43] <__rob> I thought that was the way, see how far it comes back
[11:42:54] <__rob> so take it up to start, then move in that direction X times, then X back
[11:42:55] <_methods> i'd move off more than the amount of lash
[11:43:05] <_methods> nah just move it like 20 or so mm
[11:43:10] <_methods> then come back to 0
[11:43:24] <__rob> ok, but surely once its taken up, its taken up
[11:43:32] <__rob> regardless of 1mm or 20mm
[11:43:37] <__rob> will try anyway
[11:43:42] <_methods> how do you know where all the lash is
[11:44:00] <_methods> is it in the ballnut/bearings/phsical mounting blocks/the gibs
[11:44:09] <_methods> it could build up thru the whole system
[11:44:20] <_methods> you're measuring a tiny bit of lash in one location
[11:44:50] <archivist> lots to consider when measuring a machine
[11:45:50] <_methods> i'd do it from both directions over a small distance like 20mm
[11:46:01] <_methods> once i got that sorted i'd move to larger distances
[11:46:02] <__rob> ok, just did that
[11:46:08] <__rob> 0.005 according to that dial
[11:46:11] <__rob> mm
[11:46:28] <_methods> so that's not too bad
[11:46:50] <__rob> and the tram looks decent
[11:47:09] <__rob> so any problems must be my technique
[11:47:16] <archivist> :)
[11:47:25] <__rob> I just dont entirely trust this probe
[11:47:35] <__rob> they say the tip nominal is 3mm
[11:47:39] <__rob> its 2.90 for me
[11:47:50] <archivist> remember to rotate the probe, see if it is central
[11:47:51] <_methods> is your vice swept in?
[11:48:09] <__rob> you mean square to the spindle ?
[11:48:13] <_methods> yes
[11:48:16] <__rob> I ran an indicator along it yea
[11:48:31] <_methods> and your problems are on the 2nd side
[11:48:40] <_methods> after you flip the part correct
[11:48:42] <__rob> maybe moved 1/4000 across the back jaw
[11:48:48] <__rob> yea, well the latest one is better
[11:49:00] <_methods> ok
[11:49:01] <__rob> but I probed with the digital probe multiple times
[11:49:21] <__rob> also hate these calipers
[11:49:36] <__rob> you can move it about to find the perfect value
[11:49:44] <__rob> seems a bit too random
[11:49:54] <archivist> are you assuming the digital probe is central
[11:50:02] <_methods> haha you can do that with any mearuing tool if you try hard enough
[11:50:04] <__rob> well I did the procedure for it
[11:50:10] <_methods> that's where proper technique comes in
[11:50:13] <__rob> it has 3 set screws on it
[11:50:22] <__rob> I turn them each to face Y+
[11:50:36] <__rob> then the probe touches off the back face of the vice
[11:50:48] <__rob> I do the same for each set screw facing along y
[11:50:56] <__rob> and tweak till the values come out the same
[11:51:13] <__rob> cant get it more then +- 0.002mm
[11:51:22] <archivist> ok that misses an error term
[11:51:47] <archivist> but .002 is near enough
[11:54:00] <_methods> i use probes for production work but at the house i just use indicators and edgefinders
[11:54:14] <__rob> so based on what I have said, you guys would be confident of turning out parts within 0.001" ?
[11:54:18] <__rob> with this machine
[11:54:37] <_methods> sure if you get your fixturing right
[11:54:44] <_methods> sounds like you're having issues touching off
[11:55:18] <__rob> yea, I'm careful not to catch a burr
[11:55:24] <_methods> it's going to be difficult to line up bores on the 2nd op
[11:55:28] <__rob> but I dont like it when I measure twice and it changes
[11:55:48] <_methods> if you machine off a little too much or leave a little too much it will throw off the bore locations
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[11:56:05] <_methods> you need to make a fixture that centers up the bores of it's important they line up
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[11:56:27] <_methods> when you flip to the 2nd side
[11:56:33] <__rob> yea, well its the bores in relation to other parts and the keys that are important
[11:56:48] <_methods> yes so i'd fixture off those on the 2nd side
[11:56:49] <__rob> so there are multiple bearings along the shaft
[11:57:05] <_methods> if you use the outside of the part for 0's then they could be anywhere in relation to the bores
[11:57:18] <_methods> you'll have to adjust every single part you make to account for tool wear
[11:57:35] <__rob> yeah, thats making alot of sense
[11:57:51] <_methods> on op2 you'll want to use the bores as zero
[11:58:04] <_methods> and create a fixture that maybe it drops down on top of
[11:58:23] <_methods> you'll want a "spud" to set them down on to locate the part
[11:59:09] <__rob> so for zeroing on the fixture, assuming I have lost my work offset between flips, a corner or something on the fixture is the way to do that ?
[11:59:13] <__rob> then probe off that ?
[11:59:20] <_methods> yes
[11:59:24] <_methods> or a locator hole
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[11:59:45] <_methods> i used to put like a 3/4" hole or something on the fixture then ream it
[12:00:02] <_methods> then you could zero on that for the fixture
[12:00:10] <__rob> so you manually zeroed with a bit of 3/4" bar in the tool holder ?
[12:00:12] <_methods> but yes you could just zero off the edges of the fixture
[12:00:19] <__rob> or a centre finder
[12:00:21] <_methods> nah i'd put in an indicator and sweep it
[12:00:30] <_methods> you could use a 3/4 bar though
[12:00:36] <_methods> that would be faster for a low tolerance part
[12:00:59] <_methods> but if you need your bores to be very accurate i'd sweep it in
[12:01:07] <__rob> yup, ok. I mean tormach seem to think their probe is way more accurate then an edge finder
[12:01:08] <archivist> make sure either the fixture is square or you know how to measure the fixture and rotate the plane by the fixture rotation amount
[12:01:41] <__rob> I'd like to think the cal certificate is worth something, so would like to use that and see it repeat to a high standard
[12:01:52] <_methods> i usually just program my part sitting on the fixture using the fixture zero for work coordinate system
[12:02:26] <__rob> from yesterday
[12:02:26] <__rob> http://snag.gy/hdiLP.jpg
[12:02:33] <__rob> you can see the key pockets on that
[12:02:40] <__rob> so each layer keys into those,
[12:02:53] <_methods> yeah
[12:03:06] <__rob> maybe I can use those drill holes
[12:03:06] <_methods> you just need the bore to be concentric with the thru hole
[12:03:09] <__rob> ream them out
[12:03:28] <_methods> the counterbore
[12:03:56] <_methods> is there a cbore on the other side?
[12:04:10] <__rob> its bored through thats basically a lip for a bearing
[12:04:17] <_methods> if not, why don't you do the cbore side first
[12:04:35] <__rob> well the same problem exists with the key pockets
[12:04:39] <_methods> ah ok
[12:04:42] <__rob> if they are off, the part that sits ontop will be off
[12:04:45] <__rob> and so will its bore
[12:04:49] <_methods> yeah there was a lot more work on the other side
[12:05:12] <__rob> got some pic,s hang on
[12:05:34] <archivist> you can diagnose your error by how and which direction it is off
[12:05:44] <_methods> well i'd make sure i could zero off the bores
[12:05:49] <_methods> that should fix your issues
[12:06:03] <_methods> or highlight any other issues
[12:06:26] <archivist> if the vice it not parallel to X or Y.....
[12:06:26] <__rob> maybe its worht finishing the bores with a reamer then ?
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[12:06:48] <__rob> and turning the locator for the fixture
[12:07:15] <_methods> well to test this you can just reprogram this with the bore as zero
[12:07:20] <_methods> then put the part in for op 2
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[12:07:31] <__rob> https://goo.gl/photos/V5TGDjm9WXkdgV2u5
[12:07:32] <_methods> and just sweep the bore and set that to x,y 0
[12:07:38] <archivist> it many areas, two dowel pins are used to locate plates together
[12:07:48] <__rob> that gives you an idea, not done the other side large bits
[12:08:10] <__rob> ok, well those 4 holes go right through
[12:08:32] <__rob> so with the bore they should be able to give me alignment
[12:08:46] <_methods> yes to the bore at least
[12:09:02] <__rob> also had a problem you can see on the pockets
[12:09:07] <__rob> think it must be collet slip
[12:09:12] <_methods> yeah
[12:09:14] <__rob> the tool is fractionally lower
[12:09:21] <_methods> i try not to use collets for end mills
[12:09:22] <__rob> all of them are in ER collets at the moment
[12:09:31] <_methods> i use weldon shank end mills
[12:09:35] <_methods> and solid holders
[12:09:43] <_methods> keeps that kind of thing from happening
[12:09:45] <__rob> should get a 12 mm roughing mill today, for which I have a set screw holder
[12:09:51] <__rob> so gonna try and do most of it with that
[12:10:00] <__rob> whats strange is the tool is lower
[12:10:14] <__rob> I would assume it would get pushed up by plunging or ramping
[12:10:22] <__rob> seems like its getting pulled down by engagement
[12:10:31] <_methods> lots of people get lucky using mills in collets, but sooner or later you're going to get burned
[12:10:36] <_methods> you just got burned sooner lol
[12:10:53] <__rob> hah, yea, so is that mroe often the case then, tool pulling down ?
[12:10:53] <_methods> the helix of the tool will actually pull it into the material
[12:10:57] <__rob> riiight
[12:11:04] <__rob> seemed counter intuative to me at first
[12:11:19] <_methods> yeah as it bites into the material it's like a drill bit
[12:11:22] <_methods> and will want to pull out
[12:11:38] <__rob> there any tricks for locking them in tighter ?
[12:11:43] <_methods> you ever had a drill bit bite and pull you into the part
[12:11:47] <_methods> don't use a collet?
[12:11:48] <__rob> I cant get any more on it with the wrentch
[12:11:48] <_methods> lol
[12:11:52] <__rob> hah
[12:11:56] <__rob> yea :)
[12:12:04] <_methods> it's why i use whistle notch/weldon shank in solid holders
[12:12:08] <__rob> yup, I've had drills come out on the press
[12:12:16] <__rob> guess its no different to a jacobs chuck
[12:12:18] <_methods> if i can't they i use light cuts and tighten the hell out of it
[12:12:19] <__rob> just friction
[12:12:24] <_methods> s/they/then
[12:13:25] <__rob> just bought some dowel pins
[12:13:42] <__rob> for the drill holes and the bore, so this should help things!
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[12:15:14] <__rob> https://goo.gl/photos/HjWSDaTA1bFu5nYf7
[12:15:20] <__rob> thats the end of that plate, pretty horrible
[12:15:32] <__rob> they were super light cuts aswell
[12:15:33] <__rob> 0.1mm
[12:15:53] <__rob> so I went down the side by the amount in that image, so I'd have an edge to probe off
[12:15:59] <__rob> when flipping
[12:16:10] <__rob> then then profile was done when flipped
[12:16:22] <__rob> finishing was 0.1mm on that too
[12:16:46] <__rob> still a slight bump there tho
[12:16:57] <__rob> prob explains why my bores are off
[12:18:21] <__rob> amazing help, thanks alot for that!
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[12:34:33] <_methods> sorry was drivin to work
[12:36:33] <_methods> you must have a nice knick in your endmill
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[12:40:00] <maxcnc> hi
[12:41:08] <maxcnc> Question someone on Windoof can check the error code from google on my webside the Ubuntu doe not display it
http://heimwerkermarkt-tretter.de/impressum.html
[12:42:22] <archivist> This page was unable to display a Google Maps element. Please contact the site administrator. If you are the administrator of this site, please check the JavaScript console or check the following page for troubleshooting:
http://g.co/mapsJSApiErrors
[12:43:04] <archivist> google is increasingly producing bad code
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[12:43:42] <maxcnc> Thanks
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[12:56:16] <__rob> how much would you undersize a hole for a dowel pin ~?
[12:56:25] <__rob> looking at reamers for 4mm pins
[12:56:46] <__rob> can get 4.01 and 3.99 for either side of it
[12:57:19] <__rob> 3.99 is surely a nice snug fit
[12:57:38] <Tom_itx> get a 4mm reamer
[12:59:00] <__rob> ohh, thought you were meant to undersize slightly
[12:59:22] <__rob> _methods, ATC crash and it fell out, so yea I think its done
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[12:59:41] <maxcnc> archivist can you please check again ?
[12:59:52] <Tom_itx> #22is 3.987 #21 is 4.038 neither one is 4mm
[13:01:48] <Tom_itx> just depends if you want it to fall out or have to hammer it in place...
[13:02:09] <archivist> maxcnc, seems ok now
[13:03:17] <_methods> he's using the pins for locators
[13:03:22] <_methods> fixture
[13:04:17] <__rob> https://www.cromwell.co.uk/index.php?q=0&p=browse&c=39060208&m=shop
[13:04:23] <__rob> thats the ones I'm looking at
[13:04:42] <__rob> was going to ream the part to 4mm and the fixture so the pins are tight
[13:05:04] <__rob> will be steel pins on ally fixture tho
[13:05:50] <_methods> usually not a problem on low volume fixture
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[13:06:20] <_methods> if this is for high volume you might want to get locator pin bushings
[13:07:05] <__rob> no, 3-4 of them is all for now
[13:07:29] <_methods> hell if i was only doing that many i'd just sweep the bores on each one
[13:07:40] <_methods> no since making some overly complicated fixture for that few parts
[13:07:47] <_methods> s/since/sense
[13:08:22] <__rob> well its 3-4 with 5 layers
[13:08:26] <__rob> all of which need to align
[13:08:36] <_methods> ah
[13:08:46] <_methods> well in that case, fixture away lol
[13:08:54] <__rob> also nice practice :)
[13:09:07] <__rob> so undersize the reamer to 3.99 or the pins or not ?
[13:09:26] <_methods> sure if you want the pins to stay in teh fixture
[13:09:32] <_methods> you want the hole under
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[13:10:59] <maxcnc> archivist: thanks now Back to plasma
[13:11:07] <maxcnc> Bye til later
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[13:16:18] <__rob> right, bought both 4mm and 3.99
[13:16:32] <__rob> cant wait to see the alignment now
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[14:00:07] <pink_vampire> https://www.youtube.com/watch?v=6J5yhSTv-dc
[14:00:44] <pink_vampire> how this rotating tool changer work?
[14:00:51] <pink_vampire> how it get locked?
[14:05:00] <pink_vampire> archivist: ?
[14:08:01] <_methods> https://www.youtube.com/watch?v=rqclIfMKVS8
[14:08:02] <_methods> like that
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[14:23:19] <archivist> springs and pins, and tapered ramps to disengage
[14:23:32] <archivist> and magic
[14:24:36] <_methods> http://www.homeshopsupply.com/tllast.pdf
[14:24:44] <_methods> plans for the magic
[14:26:55] <_methods> heh that's plans for a whole lathe
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[14:28:36] <archivist> working a capstan lathe all day is deadly boring
[14:29:27] <_methods> yeah the equivalent to being a button monkey nowadays
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[14:52:21] <__rob> https://goo.gl/photos/e16oFeJfXu5kBw9N6
[14:52:31] <__rob> not entirely sure, but think that was caused by the ATC crash and tool falling out
[14:52:55] <__rob> looks totally done
[14:53:06] <__rob> its next to a brand new one
[14:56:15] <__rob> is that worth keeping for something ?
[15:01:52] <_methods> sure keep it for roughting
[15:01:55] <_methods> roughin
[15:02:06] <_methods> or stuff that doesnt need to look pretty
[15:02:09] <__rob> just got my roughing end mill :)
[15:02:19] <__rob> and I have a set screw size for it
[15:03:03] <_methods> damn no more cheap gas
[15:03:11] <__rob> https://goo.gl/photos/EUeEe7q81KeDtbkg8
[15:03:12] <_methods> guess opec finally broke russias back
[15:03:12] <__rob> this guy
[15:03:37] <_methods> yep that's a rougher
[15:03:59] <__rob> well, still Iran coming online
[15:04:11] <_methods> ah that's true
[15:04:13] <__rob> they are going to ramp up production massively now the sanctions are lifting
[15:04:29] <__rob> and to fuck over saudi arabia as much as they can
[15:05:22] <__rob> think sa is in real trouble with their debt and low oil prices.. am sure iran will do as much as they can to keep that the case
[15:05:50] <_methods> well SA had a nice war chest built up just for this scenario
[15:06:28] <_methods> and i'm sure the US will be more than happy to do some more muddling in the middle east just to keep them happy
[15:06:30] <ssi> _methods: no more cheap gas why?
[15:06:33] <ssi> what happened
[15:06:41] <_methods> russia caved in to opec
[15:06:47] <ssi> crap
[15:07:15] <_methods> http://www.vox.com/2016/2/16/11014864/saudi-russia-oil-deal
[15:07:29] <_methods> nohttp://www.cnbc.com/2016/02/16/oil-prices-spike-on-reports-of-saudi-russia-output-cut-talks.html
[15:07:37] <_methods> a 2nd source
[15:07:50] <_methods> since i trust vox about as far as i can throw honey booboos' mom
[15:08:07] <ssi> please don't throw honey booboo's mom
[15:08:10] <ssi> she might land on my house :(
[15:08:12] <_methods> hahah
[15:08:19] <ssi> she lives like two miles from me :'(
[15:09:21] <_methods> wow
[15:09:25] <_methods> lucky you
[15:09:29] <ssi> yeah lucky me
[15:09:36] <_methods> i thought they lived in like mississippi
[15:10:14] <ssi> http://www.dailymail.co.uk/news/article-2956088/Inside-Mama-June-s-clean-tidy-new-home-s-revealed-Sugar-Bear-visit-Honey-Boo-Boo-weekends-new-custody-arrangement.html
[15:10:24] <_methods> yeah wtf
[15:10:31] <_methods> didn't he like molest their kids or something?
[15:11:06] <ssi> https://maps.here.com/directions/drive/Oak-St,-Hampton,-GA-30228,-USA:33.390888,-84.297096/Honey-Boo-Boo-Estates-Hampton:33.417588,-84.28761?map=33.40407,-84.29811,15,normal&fb_locale=en_US
[15:11:20] <ssi> lol
[15:11:49] <_methods> hahah
[15:11:54] <_methods> honey boo boo estates
[15:12:05] <ssi> yea got that from here lol
[15:12:05] <ssi> https://www.facebook.com/pages/Honey-Boo-Boo-Estates-Hampton/400589293445801
[15:12:53] <_methods> those people are mutants
[15:13:35] <PetefromTn_> man once again I don't know what the hell you guys are talking about... WTH is a Honey boo boo?
[15:13:43] <ssi> PetefromTn_: mutants
[15:13:51] <PetefromTn_> ah
[15:14:04] <_methods> you haven't seen that show?
[15:14:18] <_methods> it's like brain cancer
[15:14:19] <PetefromTn_> no and it sounds like that is probably a good thing
[15:14:35] <_methods> i can't see it for more than like 2 minutes
[15:14:55] <_methods> my brain starts to hemorrhage
[15:15:02] <ssi> https://scontent-iad3-1.xx.fbcdn.net/hphotos-xtf1/v/t1.0-9/12729021_1105875382809072_3919921348929411665_n.jpg?oh=f1f1ba5eb95e6a72c54e0c8b0524bd4d&oe=5767F9EC
[15:15:10] <PetefromTn_> we ditched cable and only watch netflix and movies anymore so I suppose the times I have considered going back to Cable TV are pointless...
[15:15:14] <_methods> it's like a self preservation technique
[15:16:09] <PetefromTn_> lemme guess....pathetic reality show?
[15:16:09] <_methods> self destruction is preferrable to honey booboo knowledge
[15:16:42] <_methods> oh yeah on an unimagineable scale
[15:17:42] <_methods> it's like someone cooked down every white trash trailer park into one family and then let it simmer for a couple millenia
[15:17:58] <PetefromTn_> I guess seeking out the dregs of society and plastering them all over the TV is good entertainment....to some :(
[15:18:24] <_methods> oh the dad was like molesting the kids
[15:18:30] <_methods> she kicked him out
[15:18:35] <ssi> it's for low class people to have a role model to make them feel good about themselves
[15:18:38] <_methods> then now i guess he's back
[15:18:45] <PetefromTn_> Lovely
[15:18:49] <_methods> yes indeed
[15:19:03] [qube] is now known as [cube]
[15:19:25] <_methods> they're all probably legally classifiable as mentally disabled
[15:19:58] <PetefromTn_> what happened to quality shows that actually taught you something like maybe the New Yankee Workshop or Mythbusters, or things like that? I guess people just enjoy watching the train wreck...
[15:20:13] <ssi> PetefromTn_: most people aren't smart enough for that shit
[15:20:36] <PetefromTn_> probably because they are bombarded with this kinda crap all day..
[15:20:43] <gregcnc> I've never actually watched the show either. I didn't realize they were dragging the curve down that much
[15:20:50] <ssi> no, I think your causality is backwards
[15:21:00] <ssi> people are stupid because society seems to prefer it that way
[15:21:10] <PetefromTn_> perhaps
[15:21:28] <ssi> education is a joke, reduced to lowest common denominator, and it's gotten pretty low
[15:21:43] <PetefromTn_> Oh btw my daughter has gone thru to lesson 5 now on that Codeacademy. She seems to be enjoying it.
[15:21:46] <ssi> good!
[15:21:53] <_methods> well you have to make it low so you can get federal funding
[15:22:00] <_methods> because if it's hard people fail
[15:22:05] <ssi> _methods: they get funding by number of asses in theseats
[15:22:07] <_methods> then you cant get money for your school
[15:22:12] <_methods> nah
[15:22:18] <ssi> so they're incentivized to keep everyone in the seats
[15:22:18] <_methods> they get it based on passed testing
[15:22:21] <_methods> yep
[15:22:28] <ssi> if people fail out or drop out it's bad for business
[15:22:33] <PetefromTn_> seems like you are better off watching youtube videos of tutorials than anything on TV nowadays
[15:22:33] <_methods> they just make the standardized tests easier
[15:22:38] <ssi> so everyone gets a participation trophy
[15:23:01] <ssi> that has been obvious in public primary/secondary education for ages
[15:23:13] <ssi> now the postsecondary education market has hit the same limits
[15:23:25] <ssi> if everyone goes to college, nobody has a degree
[15:23:36] <_methods> yep
[15:23:48] <ssi> not to mention the skewed market forces that have arisen from the everyone goes to college and everyone gets a loan system
[15:23:53] <gregcnc> I read recently that colleges are having to offer remedial math just to get students up to speed.
[15:24:02] <ssi> gregcnc: that's not a new phenomenon
[15:24:04] <gregcnc> thanks to CORE
[15:24:17] <ssi> I'm trying to help a friend of mine with college math, and it's abysmally bad
[15:24:23] <PetefromTn_> I could use some remedial math courses ;)
[15:24:25] <_methods> idiocracy in full effect
[15:24:42] <ssi> yeah, we're definitely getting there quickly
[15:25:12] <gregcnc> but is it really much different than it was historically? I mean some folk never went to school
[15:25:26] <ssi> historically people who didn't go to school learned trades
[15:25:27] <_methods> and they were still smarter
[15:25:29] <ssi> yes
[15:25:31] <gregcnc> my old man old had opportunity to go to 8th greade
[15:25:42] <gregcnc> CTS
[15:25:48] <_methods> just because you didn't go to school didn't mean you weren't taught by your parents
[15:25:51] <ssi> now dumb people who should be going to trade school are going and getting humanities degrees for 60-100k
[15:25:53] <PetefromTn_> just was looking at that article about honey boo boo..
[15:25:59] <ssi> and then come out of school entitled to a six figure job
[15:26:07] <ssi> that's why we have huge unemployment and 6 million unfilled positions
[15:26:10] <gregcnc> he can write programs for lathe and make consistnet parts that nobdoy in the shop can.
[15:26:13] <PetefromTn_> how in the hell is that house 150K/
[15:26:25] <ssi> PetefromTn_: does that seem high or low to you
[15:26:31] <PetefromTn_> WAY LOW
[15:26:35] <ssi> heh
[15:26:37] <ssi> it's in hampton
[15:26:44] <ssi> you know what my rent is in hampton?
[15:26:49] <PetefromTn_> I mean that looks like a pretty big house to me
[15:26:58] <ssi> $550/mo for a 1000sqft 2/1
[15:27:08] <PetefromTn_> that is cheap
[15:27:14] <ssi> you can't get an apartment that size anywhere in atlanta for less than 900
[15:27:24] <ssi> and by atlanta I mean metro
[15:27:26] <PetefromTn_> we were looking at rent on houses in Florida
[15:27:36] <PetefromTn_> in case we can't find a house to buy right away
[15:27:51] <PetefromTn_> even small homes with 1 car garage are like $1500 a mo
[15:28:04] <ssi> yeah, on the coast it's that way
[15:28:09] <ssi> try ocala and it's a different story :P
[15:28:16] <PetefromTn_> whats funny is the house prices do not reflect that really
[15:28:33] <ssi> yes the housing market is goofy at the moment
[15:28:37] <_methods> well they know that it's harder to get a loan now so they're cranking up rent on people
[15:28:44] <ssi> right
[15:28:49] <ssi> and home sales are flat for the same reason
[15:28:50] <_methods> all the people that defaulted
[15:28:51] <ssi> which drives down prices
[15:29:00] <_methods> they're going to be stuck renting for awhile
[15:29:10] <ssi> I'm in the goofy situation we talked about the other day
[15:29:12] <PetefromTn_> thats true there are a LOT of foreclosures down there right now.
[15:29:15] <ssi> I own this house that I would like to get rid of
[15:29:20] <ssi> I can maybe sell it for 140 if I'm lucky
[15:29:28] <ssi> and pocket 10-15k after realtor commissions
[15:29:35] <ssi> OR I can rent it for 1450-1550/mo
[15:29:48] <ssi> and my mortgage is only 550/mo p&i, 850 all up
[15:29:49] <PetefromTn_> crazy
[15:29:56] <ssi> I don't want to have to deal with it
[15:30:00] <ssi> but it makes no financial sense to sell it
[15:30:05] <roycroft> rule of thumb is that a house should rent for 1% of its resale value
[15:30:08] <_methods> yeah i'd hire a rental agency
[15:30:14] <_methods> let them handle it and just pay them
[15:30:16] <ssi> that's probably what I'm going to do
[15:30:19] <ssi> they usually take like 10%
[15:30:29] <PetefromTn_> roycroft I have never paid that much for a rental home in my life
[15:30:52] <roycroft> the rental market is rather variable
[15:31:09] <roycroft> and rules of thumb kind of went out the door after the financial crisis
[15:31:22] <PetefromTn_> we used to rent a nice 3/2/2 car garage in PSL before we moved to Tennessee for like $650 a month
[15:31:25] <roycroft> finance is as crazy and unpredictable as politics these days
[15:31:48] <ssi> yeah, just ask my 401k :(
[15:32:07] <ssi> down 12% in six weeks
[15:32:13] <PetefromTn_> OUCH
[15:32:15] <ssi> yeah.
[15:32:39] <gregcnc> my cousin moved to northern GA with the dream of building and selling houses
[15:32:53] <ssi> that was a lucrative business ten years ago
[15:32:55] <ssi> not so much now
[15:33:05] <ssi> much better to be an apartment complex developer
[15:33:13] <ssi> the billionaire at my airport is a developer like that
[15:33:18] <ssi> and he's worth like 2.2B
[15:33:24] <gregcnc> especially when you don't actually know anything about it.
[15:33:27] <ssi> loool
[15:33:28] <PetefromTn_> Well I got a bunch of cabinet doors waiting on me here. Cya later guys
[15:33:33] <ssi> see ya pete
[15:33:42] <gregcnc> but he's chasing his dream and seems happy
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[15:43:05] <gregcnc> https://www.instagram.com/p/9uIkQSAdrQ/
[15:49:01] <_methods> haha so true
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[15:57:12] <ssi> lord
[15:57:14] <ssi> just got off the phone with ups
[15:58:00] <gregcnc> no good news?
[16:00:26] <ssi> well
[16:00:33] <ssi> I talked to someone at the station that had access to the gps data
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[16:00:46] <ssi> and she was able to confirm that the three missing UPS packages were all delivered to the same house which was not mine
[16:00:57] <_methods> nice
[16:01:07] <ssi> but she didn't have enough mastery of difficult concepts like direction or counting to be able to relay to me which house it was
[16:01:30] <_methods> well at least they admitted they delivered to the wrong place
[16:01:34] <ssi> and she wouldn't give me a screenshot of it because "ups property"
[16:01:35] <_methods> isn't that a win?
[16:01:37] <ssi> somewhat
[16:01:44] <ssi> but I still have to fight this same battle with fedex
[16:01:52] <_methods> ouch
[16:01:53] <ssi> it took ups two full weeks to just admit it went to the wrong place
[16:02:16] <gregcnc> it's a little odd the tablet they carry doesn't notify the driver they may be at the wrong address
[16:02:32] <ssi> something must be wrong in their mapping software
[16:02:44] <ssi> USPS has no trouble with it, nor does google maps
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[16:12:12] <Sync> what ssi
[16:12:17] <Sync> that sounds like fun
[16:12:23] <ssi> super fun
[16:12:30] <ssi> thank god your box came usps for the last mile
[16:14:31] <Sync> oh, interesting
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[16:50:31] <Erant> So I was looking at mist coolant units, and it's looking like they all require reasonably high pressure with reasonably high flow (3CFM @ 90PSI), which means a 1.5HP air compressor...
[16:51:00] <_methods> yeah
[16:51:06] <Erant> It seems off to have to be running the coolant system with a kW of power to cool a 250W mill. :)
[16:51:50] <Erant> But then flood coolant is going to require a catch tray.
[16:52:31] <CaptHindsight> http://www.mistcooling.com/mist-cooling-systems/patio-misting.html
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[16:54:59] <Erant> Yeah, that runs off city water, which is also 40-100 PSI
[16:55:32] <CaptHindsight> are you working from a well or rain barrel?
[16:57:08] <Erant> I just don't have water near the shop.
[16:57:24] <CaptHindsight> a nebulizer or ultrasonic mister for cheap
[16:58:16] <Erant> I'm mostly worried about chip evacuation, the mill's not actually powerful enough to need a lot of coolant.
[16:58:32] <Erant> (Also hot steel chips hurt, but I can deal with that)
[16:59:33] <Erant> On deep pockets recutting chips is a big problem.
[16:59:51] <CaptHindsight> I hear that woodworking doesn't generate hot chips but you still have sharp objects and splinters to deal with
[17:00:00] <Erant> Hah :)
[17:01:55] <Erant> I'm going to go figure out if the shop's on a 25A breaker (which I think it is)
[17:02:02] <Erant> If so, I can run a compressor.
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[17:02:10] <Erant> If it's a 16A breaker, I'm SOL
[17:02:24] <Erant> And I'll go flood coolant. Which is going to be a PITA.
[17:06:05] <CaptHindsight> how about a flywheel powered compressor using a large stone and gravity?
[17:07:59] <CaptHindsight> $3k for this?
http://pedal-power.com/products/big-rig I need to change what I'm doing
[17:09:34] <archivist> must be popular, sold out
[17:09:39] <CaptHindsight> bicycle powered winch lifts the 10 ton stone to a height of 20 ft every day
[17:10:26] <CaptHindsight> thats where you come in
[17:10:56] <CaptHindsight> after that it's just gravity, gearbox and a compressor
[17:11:48] <CaptHindsight> the higher you lift the stone the more cooling time you get
[17:12:24] <archivist> there does seem to be money in selling crackpot ideas to people with more money than sense
[17:16:20] <CaptHindsight> 15A breaker is plenty to run a winch if you don't want to pedal
[17:23:45] <gregcnc> shop vac while cutting the slots
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[17:34:05] <CaptHindsight> http://www.ebay.com/itm/NR-HYUNDAI-HIT-8G-TURNING-CENTER-CNC-LATHE/191803624170 Current bid: US $1,275
[17:35:17] <CaptHindsight> http://www.ebay.com/itm/Nakamura-Tome-Mod-TMC-3-CNC-Lathe/252154094432 $2k in MN, no C axis
[17:35:22] <gregcnc> "you pay us for the pleasure of making room in our shop" or.....
[17:36:27] <CaptHindsight> and comes with a foot switch
[17:37:35] <archivist> and a man praying
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[17:47:41] <gregcnc> "This is made the Serious Machinist." just look at all the swarf.
http://chicago.craigslist.org/nwc/tls/5447565809.html
[17:49:00] <archivist> at least the chips are not too rusty
[17:49:34] <CaptHindsight> so they expect to get ~$1200
[17:50:00] <gregcnc> I have a 4904, bastard spindle thread
[17:55:52] <gregcnc> http://grandrapids.craigslist.org/hvo/5449189684.html
[17:56:03] <gregcnc> seems like a fair price
[18:02:22] <CaptHindsight> http://www.ebay.com/itm/HAAS-ST-30-CNC-LATHE-LIVE-TOOLING-/231846742419 live tooling $7k
[18:05:27] <gregcnc> that should be worth much more?
[18:06:04] <CaptHindsight> fair priced to move
[18:06:36] <CaptHindsight> maybe they make their money machining vs behaving like a used car lot
[18:10:59] <anomynous> maybe its crashed and has bent guides
[18:11:01] <anomynous> :]
[18:11:39] <anomynous> or maybe its so used you cant really take any chip with it without chattering because its loose all around
[18:12:35] <anomynous> and have to spend 10k to work it
[18:13:19] <anomynous> but then youd have new mechanics
[18:13:20] <anomynous> :]
[18:14:11] <gregcnc> maybe the former employer doesn't know he's selling it
[18:14:56] <CaptHindsight> **possible voodoo hex placed on it by disgruntled employee**
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[18:23:01] <maxcnc> hi ;-)
[18:28:20] * FinboySlick imagines Stephen King's 'Christine' but for lathes.
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[18:38:03] <__rob> _methods:
https://goo.gl/photos/9XxMqEuQpADWX9Tz5
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[18:38:12] <__rob> thats the end of a part, using the digital probe to find the centre
[18:38:17] <__rob> then milling from the other side
[18:38:32] <__rob> so the profile is very slightly off, dissapointingly
[18:38:45] <__rob> is that even realistic to hope that would line up ?
[18:39:04] <rhaven> hello, how to I setup in in the ini configuration a soft limit which will stop the axis' from running? i tried MAX_LIMIT = xx but it will go over this value
[18:39:05] <__rob> checked my backlash, tram, vice
[18:39:16] <__rob> all appears good
[18:39:22] <__rob> better then the slight offset on that part
[18:39:31] <Erant> gregcnc: So I have a shopvac... Someone mentioned that might not be enough.
[18:40:08] <Erant> Also, does anyone have any opinions on Brown & Sharpe calipers?
[18:40:09] <__rob> having said that is less off the other end, this is with a different, endmill
[18:40:36] <__rob> can there really be that much discrepancy between 2 size end mills where the only difference is feed and rpm
[18:41:57] <Erant> __rob: Remember, if you just flip a part, you double the error.
[18:42:04] <Erant> I've been bitten by that before...
[18:44:46] <__rob> how does it double ?
[18:45:12] <__rob> im probing faces from the first cut
[18:45:23] <__rob> summing and dividing the difference to find my centre
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[18:47:18] <maxcnc> rhaven limits are only in use after homing
[18:48:01] <FloppyDisk> maxcnc really??
[18:48:34] <maxcnc> FloppyDisk: wher shoudt the mashine setup otherwise know where she is
[18:49:05] <maxcnc> FloppyDisk: you can home without switches
[18:49:15] <maxcnc> and from there the limits count
[18:49:20] <FloppyDisk> Yes - suppose.
[18:49:36] <FloppyDisk> I would rather not because if you're on the 'wrong' side of home, then you crash...
[18:49:50] <rhaven> maxcnc, thanks yes i was just reading that too, thank you
[18:49:53] <gregcnc> limits are active before homing. I'm still setting up my machine and had the wrong parameters
[18:50:24] <gregcnc> it thought the axis was beyond limits and i don't even have limits configured
[18:50:48] <_methods> __rob: it's realistic that they should line up
[18:51:02] <_methods> if you used 2 diff end mills it won't line up probably
[18:51:09] <_methods> unless you have the cutter comp set correctly
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[19:30:30] <maxcnc> Gn8
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[19:36:44] <__rob> _methods, well the tool path is generated for the specific cutter
[19:37:12] <__rob> and the end mills measure to their given size
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[19:43:59] <_methods> how much run out is in the holder
[19:44:16] <_methods> just because a tool measures a certain diameter doesn't mean it cuts that size
[19:44:47] <_methods> that's what cutter comp is for
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[19:51:56] <_methods> if you're trying to blend 2 tool paths from diff ops you definitely will need to use cutter comp
[19:52:12] <_methods> or you'll never be able to get a tolerable blend line
[19:53:12] <CaptHindsight> https://www.youtube.com/watch?v=2wZ9lvGhqOw Cutter Comp
[19:54:52] <CaptHindsight> is it just me or are Wisconsinites sounding more like Minnesotans?
[19:55:04] <CaptHindsight> okay
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[20:02:45] <__rob> so you always enter cutter comp values, even for a new tool >?
[20:02:53] <_methods> yeah
[20:02:57] <__rob> like, do a test cut, measure and enter it
[20:02:58] <__rob> ahh
[20:03:00] <_methods> after i run it then i measure the part
[20:03:01] <__rob> so, never done that
[20:03:05] <_methods> and enter cutter comp
[20:03:23] <_methods> unless the part is in tolerance then i just keep running
[20:03:30] <_methods> until it goes out of tolerance
[20:03:36] <_methods> then i adjust with cutter comp
[20:03:39] <__rob> ok, looks like theres an option for normal comp in the path in inventor HSM
[20:03:46] <__rob> then I can have G41 on finishing pass
[20:03:52] <_methods> yep
[20:04:11] <_methods> personally i use wear comp
[20:04:27] <_methods> then i can change any tool with pretty much whatever i want
[20:04:35] <_methods> so say i break my 3/8 end mill
[20:04:40] <__rob> so you just enter the wear (comp) value in the control
[20:04:41] <_methods> and all i have is 1/4
[20:04:44] <__rob> as an offset from ideal ?
[20:04:47] <__rob> based on measurements ?
[20:04:51] <_methods> then i drop in my 1/4 and adjust the wear comp
[20:05:21] <__rob> do you get alot of difference between tools ?
[20:05:26] <__rob> I mean when brand new
[20:05:26] <_methods> it just depends
[20:05:40] <_methods> depends on the machine/toolholder/tool
[20:05:45] <_methods> lots of variable
[20:05:46] <__rob> yup
[20:06:02] <__rob> so you adjust this once for the tool/setup ?
[20:06:04] <_methods> a real shop uses regrinds or whatever
[20:06:22] <_methods> so you really never know what the dia is without a tool presetter
[20:06:32] <__rob> so what I mean is, If I always run a square or something, on a new end mill, this should be enough to calc that value
[20:06:39] <_methods> yes
[20:06:41] <__rob> then I am done till I've used the mill for a while and notice any deviation
[20:06:43] <_methods> or a hole
[20:06:55] <__rob> ok, great
[20:07:06] <_methods> cut profile and measure diff from programmed
[20:07:27] <_methods> so if you try to cut a .5 dia hole
[20:07:32] <_methods> and it's .495
[20:08:02] <_methods> put -.0025 in wear
[20:09:18] <_methods> some machines you might have to actually put in .005"
[20:09:32] <_methods> just depends on how your machine is set up to handle comp input
[20:09:49] <_methods> linuxcnc defaults to R i believe
[20:09:59] <_methods> so putting in -.0025 would be what you want
[20:11:05] <_methods> in the tool dia people usually put in the nominal size of the cutter
[20:11:33] <_methods> but you could skip wear and just change the tool dia and leave wear blank
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[20:15:45] <CaptHindsight> __rob: what happens if you drill a hole dead center in a circular piece or a square part and then flip it over?
[20:15:59] <CaptHindsight> is the hole still centered?
[20:19:18] <witnit> even if you did start a hole dead center, what the odds of it exiting dead center? unless you have a boring bar
[20:22:26] <gregcnc> is it the same tool for both sides?
[20:23:13] <__rob> no, different tool
[20:23:25] <__rob> the other got dropped when I had an ATC issue
[20:23:56] <__rob> https://goo.gl/photos/nPTtvw2YjN8P1cKEA
[20:24:02] <__rob> thats the end of it
[20:24:06] <__rob> so perhaps that is part of the problem
[20:24:13] <witnit> Ladder logic question here; If I need to turn an output on every 8 seconds and it stay on for .5 seconds then repeat. Does anyone know how to do that, or have a simple ladderlogic.clp file I can look at and make sense of?
[20:24:16] <__rob> didn't notice it was that bad till today
[20:24:28] <__rob> so I used a fresh smaller end mill for the other side
[20:24:33] <__rob> think I might just do some flipping tests
[20:24:37] <__rob> see how I get on
[20:24:42] <__rob> and get cutter comp going
[20:24:47] <gregcnc> do the parts measure to size?
[20:25:12] <gregcnc> or is it obvious the profiles are shifted?
[20:25:45] <__rob> its not an obvious shift
[20:25:56] <__rob> gonna buy a micrometer to measure
[20:26:14] <__rob> I seem to always be able to get +- 0.05 with calipers
[20:27:57] <gregcnc> looks like one side has x DOC and other side is 5x?
[20:28:20] <__rob> yea, about right
[20:28:35] <__rob> I had to do the 5x side first, but the vice jaws stopped me profiling hte whole way through
[20:28:42] <__rob> so I just went through between the jaws, where it was clear
[20:28:46] <__rob> and used that to probe off
[20:28:56] <__rob> then faced and profiled the flipped side
[20:30:08] <__rob> even without cutter comp and even if hte part is oversize, the origin in the centre, and when probed on X it was +/- exactly the same amount
[20:30:22] <__rob> so the centre should be correct
[20:30:34] <__rob> even if the part is not due to over/undersize cutting
[20:30:43] <__rob> which is what I dont quite get
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[20:36:22] <witnit> Erant: I was happy with my old B&S dials
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[20:48:39] <witnit> I am a special kind of stupid. I have been sitting here for over an hour pissing with these timers in ladder logic and still cant get an output to off and back on.
[20:49:50] <CaptHindsight> I found most ladder logic tutorials to be pretty awful
[20:49:55] <witnit> ^
[20:50:35] <witnit> how hard can "blinking output" "oscilating circuit" "flashing output" be hard to make sense of
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[20:52:17] <CaptHindsight> they don't seem to know how to explain how the ladder is scanned from top down
[20:53:16] <witnit> Sometimes I amaze myself with my ingenuity and a knack for making sense of extremely complicated systems. While at the same time can't figure out the simplest of functions.
[20:53:28] <CaptHindsight> it might be blinking but only once and only for the period of that rung getting scanned
[20:54:09] <witnit> I got this, ------{timer}---- And then it just stays on.
[20:56:51] <CaptHindsight> timer starts ---------------------------------------------------
[20:57:32] <CaptHindsight> what resets it? what happens when it reaches its count limit?
[20:57:45] <witnit> it goes on
[20:57:50] <witnit> then stays on
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[20:59:47] <witnit> Classic Ladder is for someone who already understand ladder logic I just cant see what its doing.
[21:02:06] <CaptHindsight> I'd prefer to use digital circuit functions and logic but then electricians wouldn't know what to do with it
[21:02:49] <witnit> I had more luck writing the controls with a somefile.sh and sending the commands direct
[21:02:53] <CaptHindsight> maybe someday HDL will replace it all
[21:07:36] <witnit> How cool would it be if there was an "upload your config" built into linuxcnc, so a guy could just click upload and it dump his work to a website for us, SOOO many more people would share their work.
[21:08:33] <witnit> There has got to be some people doing some really nice interface building, nobody will ever see it though
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[21:11:42] <XXCoder> witnit: needs a server but yeah it'd be quite low demend server
[21:12:11] <XXCoder> its not like someone would click upload 100 times a day. (in fact, make server block source if such is detected)
[21:12:14] <witnit> anyone willing to log the chat would be using more demand on their system than something like that :)
[21:12:33] <witnit> we are linux we can do anything
[21:13:09] <witnit> how many times did you have to go get some .hal or .ini from a user uploading to some crap ad infested upload site
[21:13:43] <witnit> just to tell him he forgot to uncomment or something
[21:15:31] <jdh> you should do that.
[21:15:37] <gregcnc> upload to linuxcnc forum?
[21:15:58] <XXCoder> nah
[21:16:04] <XXCoder> make sure no registion required
[21:16:27] <gregcnc> won't it get filled with random trash?
[21:16:59] <XXCoder> actually probably need some sort of parser to make sure it is valid config
[21:17:18] <XXCoder> so random crap uploads is blocked
[21:17:32] <XXCoder> make it something like pastebin but it is limited to configs
[21:18:02] <jdh> git
[21:18:51] <CaptHindsight> ConfigHub
[21:19:51] <CaptHindsight> "Sponsored by the Thirst Mutilator"
[21:21:37] <witnit> Did i just start a thing?
[21:21:51] <witnit> Someone do the thing.
[21:23:09] <XXCoder> Brawndo! It's got what plants crave!
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[21:41:24] <jdh> did you get the blinkung light?
[21:42:52] <Erant> Man, nothing beats brick-n-mortar electronics shops when you're not quite sure what you need.
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[21:43:27] <jdh> do those exist outside of cali?
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[21:44:03] <witnit> omw to the shop with no blinking light currently :(
[21:44:07] <Erant> I need a connector to connect my spindle to LinuxCNC, needs to carry encoder and analog spindle. So I roamed a while, tossed my original DB9 connector idea and picked up a nice 8-pin DIN connector for 85c.
[21:44:16] <Erant> jdh: I live in the bay
[21:44:22] <Erant> So, not sure :)
[21:45:10] <jdh> two timers, one runs off A, one off not A
[21:45:12] <malcom2073> There's an electronics shop about 15 mile south of me in Maryland, they still exist
[21:45:54] <Erant> malcom2073: The one nearby me (2 miles from work) is a giant warehouse of just 'stuff'.
[21:46:08] <Erant> Used, new, components, everything pretty much.
[21:46:12] <Erant> It's a candy store to me.
[21:46:45] <malcom2073> Nice
[21:47:18] <Erant> I found some Vix Parker servo drives there this time, going to wait 'til they go on sale.
[21:48:05] <witnit> jdh: thanks! i think thats my issue of "not"
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[22:03:32] <FloppyDisk> Erant - sometimes I find their stepper/servo prices aren't all that great... But, they do have a lot of stuff!
[22:07:15] <Deejay> gn8
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[22:31:20] <Valduare> hi guys
[22:31:31] <Valduare> so i’ve been looking into building a 3d printer
[22:31:35] <Valduare> my first cnc device
[22:31:53] <Valduare> was wondering what the purpose is for an auto leveling bed…. wouldnt you only need to level it once and your done?
[22:32:38] <malcom2073> Auto leveling beds is a software fix to a hardware problem
[22:32:57] <malcom2073> Yes you only need to level it once, but most 3d printers go unlevel with time, temperature changes, vibration in the environment, etc
[22:33:16] <malcom2073> Due to flimsy frames
[22:33:28] <Valduare> ah ok
[22:33:51] <Valduare> im going to build a tiny little cnc out of old cd roms to start with
[22:34:12] <Valduare> and design parts that can be printed in a 1.5x1.5x1.5 area to build a bigger printer heh
[22:34:26] <malcom2073> Yeah you're going to need all the software bandaids you can get with something like that heh
[22:34:47] <Valduare> then i can move the electronics over to the new build and then make bigger/better parts etc heh
[22:35:01] <Valduare> I got this kit
http://www.amazon.com/gp/product/B019TNELNU?psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s00
[22:36:22] <malcom2073> You would have a lot more luck getting advice on that sort of thing in the #reprap channel, this is more for linuxcnc and related cnc machines. That is more up reprap alley
[22:36:51] <Valduare> ah didnt know that chanel existed ty
[22:37:01] <Valduare> I was looking at building a mantis9 style mill too
[22:37:09] <Valduare> can this kit drive that too?
[22:38:11] <_methods> hahah that thing has bearings hot glued to a board
[22:38:13] <malcom2073> That kit can drive nema17 motors. They're a bit small to do any real machining on, though the mantis9 is weak enough that you're not doing any real machining anyway
[22:38:32] <malcom2073> So likely, the electronics won't be the weak point of that setup :)
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[22:40:07] <Valduare> i wasnt planning on using their idea of hotgluing the spindle motor in place n such lol
[22:40:12] <Valduare> just kind of liked the overall design heh
[22:40:36] <malcom2073> Hot gluing the spindle wasn't the worst of the design decisions there :P
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[22:46:00] <yasnak> So my boss didn't like how much Delcam wanted for powermill, dumped it. Bobcad calls us, which we both agreed was a joke previous to his conversation with sales rep. He buys their super duper package (hahaha) for nearly twice that of the powermill one. Dear god, what a piece of crap software. /endrant
[22:46:43] <malcom2073> Heh, yeah bobcad is no fun
[22:47:20] <yasnak> Its like playing musical chairs. Push button, crash. Push button, be careful doing anything till next step, make it to next step then crash.
[22:47:56] <_methods> i hear people saying good stuff about powermill
[22:47:58] <_methods> is it bad?
[22:49:11] <yasnak> "Oh, its probably a computer configuration problem or not enough memory. Not a good enough GPU." Yeah, 32GB i7 4770 w/nvidia 760 isn't good enough. Not to mention the program never uses over 1GB of ram for its pathetic graphics.
[22:49:35] <_methods> what was wrong with powermill?
[22:49:40] <yasnak> love powermill
[22:50:03] <yasnak> he didn't like the cost they wanted for new posts on the new machines
[22:50:05] <_methods> ah yeah i was gonna say i haven't heard any powermill bad mouthing before
[22:50:10] <_methods> hah
[22:50:16] <_methods> how much were the posts?
[22:50:19] <_methods> $1k?
[22:50:23] <yasnak> I use powermill and partmaker daily
[22:50:26] <yasnak> 3k
[22:50:33] <_methods> meh that's a little high
[22:50:36] <_methods> but not unheard of
[22:50:50] <_methods> you can't make your own posts?
[22:50:56] <yasnak> Well, they charge the higher end for our swiss machines. Citizen and ECAS
[22:51:05] <_methods> ahh
[22:51:21] <yasnak> I can, but they also have some heavy duty cost on their post config PRO version. I have the lite meaning I can make changes to posts but not build posts. :/
[22:51:34] <_methods> ah that's bs
[22:51:41] <_methods> i would be a bit pissed about that
[22:52:14] <yasnak> Awesome people though, our rep is nearly never not working. I've emailed him at 2AM on weekday, he answers.
[22:53:50] <yasnak> And he actually knows his shit, when you talk about doing superimposed drilling/milling/turning with 2 gangs while syncing the z1z2 he knows exactly what you're talking about.
[22:58:34] <_methods> yeah that kind of help is invaluable
[22:58:47] <_methods> 3k for a post is nothing to go to bobcad over
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[23:05:13] <_methods> never go full bobcad
[23:05:15] <_methods> lol
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[23:05:21] <yasnak> exactly my thoughts
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[23:07:07] <yasnak> bobcad came at him with a full package with all posts for like 500. somehow talked him into their 5-axis milling package and all the bells and whistles. its my uncle, him and i never see eye to eye. he blames the tooling i buy on why the new programmers cannot get consistant tool life. not the pathetic speeds and feeds. :P
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[23:08:04] <SpeedEvil> Do you actually have any 5 axis tools?
[23:08:07] <yasnak> Or when I make a design change that will solve a problem the easiest, most productive way he won't allow it. its not his idea.
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[23:08:20] <SpeedEvil> I hate people like that.
[23:08:27] <SpeedEvil> It is damn hard not to be one.
[23:08:55] <SpeedEvil> you have to actually try and admit that you don't know everything and sometimes even if you've done it for 20 years a 5-year old can have a better idea
[23:10:07] <Jymmm> yasnak: You should wire it up to blow a fuse and billow out huge clouds of smoke the next time your uncle goes crazySpeeds =)
[23:10:19] <RadicalDev> SpeedEvil: That's why i decided to have kids
[23:10:25] <yasnak> sure, we've got 2. okuma millac 33tu and a 60 u duoblock mori
[23:10:48] <Jymmm> RadicalDev:Slave Labor?
[23:11:06] <yasnak> on the floor i manage 2 shifts, 3rd shift is ghost. ~50 operators/programmers. engineers and front office is moving into building next door shortly
[23:11:07] <RadicalDev> Jymmm: And so they can give me great ideas that I can shamelessly pass off as my own.
[23:11:16] <Jymmm> RadicalDev: Ah, there ya go =)
[23:12:16] <yasnak> Jymmm, titanium and I learned speeds and feeds way back when. I remember being so happy to inch that extra 10s off the cycle. Go have a victory cig. only to turn around and see the bay doors being opened with smoke billowing out. Heh
[23:14:40] <_methods> yeah i don't care how anyone does anything as long as they do it in timely efficient way
[23:14:46] <yasnak> speed, yeah. hes losing his touch and unfortunately probably doesn't like it. hes a nice guy, but has the weirdest personality. I've slowly just resorted to talking shop with him only in dire situations. He literally withholds information from managers so that they screw up only to blame them later. Hes done it do me.
[23:15:55] <_methods> some people are more comfortable using certain tools or workholding
[23:16:02] <_methods> i try not to micromanage that stuff
[23:16:25] <SpeedEvil> Accepting that your suggestions are stupid because you're out of date is hard.
[23:16:55] <_methods> i didn't know you worked with me
[23:17:07] <SpeedEvil> :)
[23:17:09] <_methods> hahaha
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[23:39:26] <JT-Shop> only took all afternoon to get a python 3 gtk+3 dialog box to work correctly
[23:40:45] <malcom2073> Yay gtk
[23:42:30] <JT-Shop> yea finally gave up trying to create the damn thing and used the glade one
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[23:55:30] <Simonious> okay.. I must have brain damage.. I asked a supplier what the tolerance was on the ID of a part and I got back: Tolerance is +1"/-0 ... Now I know she didn't mean up to 1 inch, so and the measurement isn't in degrees, so.. what did she mean?
