#linuxcnc | Logs for 2012-03-01

Back
[00:00:55] -!- jthornton has quit [Ping timeout: 276 seconds]
[00:03:07] <joe9> archivist: photo 5 where? sorry, if i missed it.
[00:04:01] <joe9> mikegg: I could not get the drive sleeve of a drill press out after much soaking with PB and banging with a wooden dowel, rubber mallet and then a small hammer.
[00:04:10] -!- theorb [[email protected]] has joined #linuxcnc
[00:04:41] <joe9> mikegg: do you know of any local mechanic shop that could remove something like that? In CT, I could go to pepboys and they would do that for me (press'ing and stuff like that)
[00:04:48] -!- theorbtwo has quit [Ping timeout: 272 seconds]
[00:04:58] theorb is now known as theorbtwo
[00:05:08] <joe9> Just curious if mechanic folks in atlanta would do that, too.
[00:07:25] -!- i_tarzan has quit [Ping timeout: 276 seconds]
[00:13:04] -!- GoSebGo has quit [Ping timeout: 245 seconds]
[00:15:17] -!- mhaberler [[email protected]] has joined #linuxcnc
[00:16:23] -!- Valen has quit [Quit: Leaving.]
[00:16:53] -!- GoSebGo [[email protected]] has joined #linuxcnc
[00:17:09] <FinboySlick> Oh cool, there's a free version of HSMWorks now.
[00:18:08] -!- GoSebGo has quit [Client Quit]
[00:28:48] -!- GoSebGo [[email protected]] has joined #linuxcnc
[00:30:28] -!- ries [[email protected]] has joined #linuxcnc
[01:24:54] -!- rob_h has quit [Ping timeout: 260 seconds]
[01:46:35] -!- factor has quit [Read error: Connection reset by peer]
[02:04:17] -!- factor [factor!~factor@r74-195-184-248.msk1cmtc01.mskgok.ok.dh.suddenlink.net] has joined #linuxcnc
[02:07:37] <Tecan> brahahahaha
[02:10:46] <joe9> this is pretty cool: http://woodworkerbcncrouterproject.blogspot.com/
[02:15:24] -!- ries has quit [Quit: ries]
[02:19:49] <mikegg> joe9: would one of these guys do it? http://i01.i.aliimg.com/photo/v0/112410863/Bearing_Puller_3_legs.jpg
[02:20:36] <mikegg> take a picture, let me see what you're working with
[02:20:37] <joe9> no, it is photo 7 of http://www.machinistblog.com/restoring-a-craftsman-15%E2%80%B3-drill-press/
[02:20:48] <joe9> and, photo 8 when it is out.
[02:21:06] <joe9> i think you just have to hit it from the bottom to get it out.
[02:21:37] <joe9> I tried wood, did not budge. I put something sharp which damaged the lower bearing but still does not budge by more than a mm..
[02:21:53] <joe9> not exactly sharp, but a metal one
[02:22:30] <joe9> this is what the instructions say: Use a hardwood dowel and tap the drive sleeve assembly [photo 8] out from below – that is, stick the dowel into the head from the bottom side and use a dead blow hammer to tap the drive sleeve out toward the top.  It is a loose press fit but tap evenly so you don’t cock it as you drive it out.
[02:23:08] <mikegg> so photo 7 is a view from the bottom looking up?
[02:23:23] <joe9> no, it is from the top
[02:23:45] <mikegg> ok, and you're trying to drive it out the bottom?
[02:23:53] <joe9> bottom is just the bearing surrounding the drive sleeve.
[02:23:55] <joe9> mikegg: yes.
[02:24:17] <joe9> no, hammer it from the bottom so that it comes out of the top.
[02:24:24] <joe9> does that make sense?
[02:24:40] <joe9> photo 9 is the disassembled drive sleeve.
[02:24:51] <mikegg> ok got it
[02:25:47] <joe9> the nut/screw at the top is 24mm.
[02:29:19] <mikegg> http://www.harborfreight.com/four-wheel-drive-ball-joint-service-kit-4065.html
[02:29:30] <mikegg> i've got one of those hoo-hahs
[02:30:11] <mikegg> I can measure the gap, think it might fit and drive the sleeve out from the bottom
[02:30:16] <mikegg> ?
[02:30:44] <joe9> no way, the drive sleeve is in the drill press below where the spindle is.
[02:30:59] <joe9> in the main frame of the drill press.
[02:31:32] <joe9> i cannot even touch the bottom (other side) with my hand. it is deep inside where the quill/spindle starts from.
[02:31:45] <joe9> I can only get to it with a dowel oslt.
[02:31:59] <mikegg> what is the dowel made of?
[02:32:09] <joe9> mikegg: I tried wood. did not budge
[02:32:18] <mikegg> wood might be too soft
[02:32:24] <joe9> then I tried a metal rod, not much change.
[02:32:43] <joe9> then I tried one of those pry bars with a chisel shaped edge, it budged an mm.
[02:32:54] <mikegg> eek
[02:33:13] <joe9> but, it also rendered the inner bearing useless. I am planning on replacing the bearings anyway.
[02:34:45] <mikegg> do you have the drill press flipped upside down?
[02:35:14] <mikegg> have you put a blow torch on it yet?
[02:36:24] <mikegg> do you have a dowel you can stick in the top as shown in photo 8?
[02:36:41] <mikegg> it might be cocked in the sleeve, in which case hammering won't help
[02:37:13] <mikegg> you might try sticking something in the hole, and working it around in a circular motion to see if you can un-cock it
[02:37:33] <mikegg> *photo 7
[02:40:06] <joe9> mikegg: sorry, was lost for a moment there
[02:40:25] <joe9> mikegg: yes, I removed the piece from the drill press. I have the whole piece out.
[02:40:36] <joe9> i can take it to a shop or anything pretty easily.
[02:41:00] <mikegg> well, I dunno anyone off the top of my head
[02:41:31] <mikegg> I've had good luck before just driving around to different shops and asking if they can press something out for me
[02:41:40] <joe9> ok, thanks.
[02:41:45] <joe9> what is "cock"ing?
[02:41:50] <mikegg> last time I went to Pep Boys on roswell road
[02:42:03] <mikegg> like, not straight - binding
[02:42:47] <joe9> ok, thanks. will find a pepboys or a mechanic shop first thing tomorrow.
[02:43:04] <mikegg> the one time you got it to move, If you didn't hit it dead center, you exerted a moment about a radial axis of the bearing
[02:43:31] <mikegg> that radial moment can make it take up more room within the sleeve, because it's cylindrical
[02:43:47] <joe9> oh, ok.
[02:43:54] <mikegg> you have to correct it before you continue, otherwise, the sleeve may get trashed
[02:44:08] <mikegg> just pressing it out MAY work
[02:44:15] <mikegg> but I've trashed things trying to do that
[02:44:34] <joe9> i will take it to a mechanic shop and see if they can do something.
[02:44:53] <joe9> I do not mind replacing the sleeve, if it is too badly broken.
[02:45:06] <joe9> just have to wait for the part to arrive, which is a pita.
[02:45:51] <mikegg> ahh we got our terminology crossed. when I said sleeve, I was referring to hole, not the part you're trying to hammer out
[02:46:36] <joe9> oh, ok. that would suck.
[02:46:54] <mikegg> yeah
[02:47:05] <joe9> I do not think I touched the hole or the border, unless, the bearing pressed into it and did something.
[02:47:43] <mikegg> right, picture a thin disk within a cylinder. consider what happens when you bang on the outside of the disc vs the center
[02:48:06] <mikegg> doesn't take much to make it bind
[02:48:57] <joe9> you are correct, that would suck.
[02:49:10] <joe9> live and learn, huh..
[02:49:19] <joe9> or, learn and live...
[02:49:27] <mikegg> I don't mean to be patronizing or anything - that sort of thing has caused me plenty of hearache in the past...
[02:49:55] <joe9> i am sure... everything I touch, I break a part of it.
[02:50:28] <mikegg> i dunno tho, looks like those bearing have a nice beveled edge, and they are pretty tall for the diameter...
[02:52:48] <mikegg> well, lemme know how it works out
[02:52:56] <joe9> ok, will do. thanks.
[02:53:16] <mikegg> can you run a manual lathe?
[02:53:29] <joe9> http://atlanta.craigslist.org/sat/tls/2867715878.html
[02:53:33] <joe9> mikegg: no.
[02:54:00] <mikegg> yeah, I saw that - did you ask for some pics?
[02:54:16] <joe9> mikegg: no, will do. have you seen the pics?
[02:54:20] <mikegg> nah
[02:54:24] <joe9> why do you ask about the manual lathe?
[02:55:12] <mikegg> if you want, we can turn a mandrel that is the right diameter. I'd be suprised if that won't get it out.
[02:55:23] <mikegg> I'
[02:56:04] <joe9> ok, thanks a lot. I will see if I can get it out with the mechanic, if not, I will bother you about it.
[02:56:09] <mikegg> 've got enough crap floating around..
[02:56:49] <mikegg> like a 1.5" OD bar of tool steel
[02:59:52] <joe9> ok, thanks a lot.. will ping you by afternoon, if I cannot get this sorted out by then.
[03:00:10] <mikegg> you bet dude, good luck
[03:03:01] <joe9> thanks.
[03:06:59] -!- hatch789 [[email protected]] has joined #linuxcnc
[03:08:54] -!- FinboySlick has quit [Quit: Leaving.]
[03:26:31] -!- sumpfralle has quit [Read error: No route to host]
[03:26:58] -!- sumpfralle [[email protected]] has joined #linuxcnc
[03:28:12] -!- mhaberler has quit [Quit: mhaberler]
[03:33:11] <hatch789> anyone alive in here tonight?
[03:33:38] <hatch789> PCW, did you by chance get some time to look at my BIT file for me?
[03:36:35] <pcw_home> yeah sent it to dave I think
[03:37:08] <hatch789> doh!
[03:37:26] <hatch789> you don't happen to have a copy for me to try it now do you? He's been in bed long ago
[03:39:09] <pcw_home> yeah I can forward it to you
[03:39:53] <hatch789> great. thank you. :) -Did you remember to lower the resolver voltages for the driver windings?
[03:40:35] -!- phantoxe has quit []
[03:41:42] <pcw_home> I though about it more and realized its better to divide the signal down at the sine/cos inputs
[03:41:44] <pcw_home> otherwise it will reduce the noise margin
[03:42:06] <hatch789> ok.
[03:42:50] <hatch789> sounds like a more accurate end-result for me with regard to axis sensitivity... right?
[03:43:10] <pcw_home> looks like maybe 3/1 so 3 matched resistors in series outer leads go to resolver, 2 leads from center resistor to 7I49
[03:44:16] <hatch789> ok. Any idea on the Ohms I need?
[03:44:24] <pcw_home> less noisy because the long signal wires from from the resolver are left at a high level until they get to the 7I49
[03:44:56] <hatch789> makes sense
[03:45:02] <pcw_home> 7I49 has ~100K input impedance so maybe 3x 4.99K 1%
[03:45:49] -!- demacus [[email protected]] has joined #linuxcnc
[03:45:52] <pcw_home> if you have a bunch matching to better than 1% in 3s would help
[03:46:14] <hatch789> 3k you mean?
[03:46:37] <pcw_home> (no matched in sets of 3 if you have a good ohmmeter)
[03:46:53] <pcw_home> a=b=c
[03:46:53] <hatch789> ahh
[03:46:57] <hatch789> yup
[03:47:03] <hatch789> I understand the wiring
[03:47:14] <hatch789> 4.99k ....will 5k resistors be OK?
[03:47:46] <pcw_home> 5K usually means 5% so not so good
[03:47:55] <hatch789> ahh thank you for clarifying that
[03:48:18] <pcw_home> 3k to 10 K would be OK
[03:48:29] -!- demacus_ has quit [Ping timeout: 245 seconds]
[03:48:31] <hatch789> I have a LOT of resistors. Just need to look what I have. Some are from government issue and super high accuracy
[03:49:36] <pcw_home> they just need to be the same. sorry for the nuisance industry standard for resolvers is 2-1 but you never know what you will find
[03:50:20] <hatch789> It's ok. I can fix this problem. I'll go in to check what I have. Do you need my e-mail address again to send me the BIT file?
[03:50:33] <pcw_home> static error is about 1 degree for 1% mismatch between sine/cosine
[03:51:36] <hatch789> I'll be careful as I check. I have a ton of the light blue resistors from some really accurate set
[03:51:52] <hatch789> just hoping they're in the range I need. But they're in the house in the basement.
[03:53:22] <pcw_home> yeah i need your email addy
[03:53:27] <hatch789> [email protected]
[03:54:30] <hatch789> I'm going to head in to the house; check what I have by way of resistors and then probably call it a night...
[03:55:33] <pcw_home> ok sent and 'nite
[03:58:10] <hatch789> thanks. Goodnight
[03:59:08] -!- The_Ball has quit [Ping timeout: 260 seconds]
[04:05:25] -!- The_Ball [[email protected]] has joined #linuxcnc
[04:06:27] <hatch789> pcw_home, once I put the bit file in the proper directory, do I need to re-compile or something before firing up my EMC2?
[04:06:37] <hatch789> I ask because the velocity is still jumping around right now.
[04:09:42] <mikegg> yeah, you need to make sure that your ini file is pointing to the correct firmware and restart linuxccn
[04:10:13] <hatch789> it is pointing to the same as it was before. I simply replaced the file right over-top of the old one
[04:10:36] <hatch789> the md5sum is definitely different on the new BIT file so I know it's been updated now.
[04:10:49] <hatch789> so do I need to re-compile or do a build?
[04:11:04] <mikegg> uhh, should suffice to restart the program
[04:11:20] <hatch789> damn ...that's what I thought
[04:11:29] <hatch789> not sure why my velocity is still all over the place then
[04:11:55] <hatch789> unless the voltages being out of range so much are causing this?
[04:12:12] <mikegg> i'm not real familiar with resolvers
[04:12:19] <mikegg> and I'm all out of vodka
[04:12:58] <mikegg> but I would avoid powering up your servo amps until you get it sorted out
[04:13:13] <hatch789> yeah I won't power them up yet
[04:13:18] <hatch789> ok I'm off to bed
[04:13:40] -!- hatch789 has quit [Quit: Ex-Chat]
[04:14:08] -!- mazafaka has quit [Ping timeout: 240 seconds]
[04:15:06] -!- cstop has quit [Quit: Leaving]
[04:23:32] -!- capricorn_one [[email protected]] has joined #linuxcnc
[04:24:32] <mikegg> let me know when you get it resolved
[04:49:09] -!- sumpfralle has quit [Ping timeout: 272 seconds]
[04:56:08] -!- mozmck has quit [Ping timeout: 240 seconds]
[04:59:12] -!- mozmck [mozmck!~moses@client-74.117.92.175.dfwtx.partnershipbroadband.com] has joined #linuxcnc
[04:59:30] -!- psha[work] [psha[work][email protected]] has joined #linuxcnc
[05:05:02] -!- sumpfralle [[email protected]] has joined #linuxcnc
[05:26:05] -!- ve7it has quit [Remote host closed the connection]
[05:30:30] -!- vladimirek [[email protected]] has joined #linuxcnc
[05:37:54] -!- vladimirek has quit [Remote host closed the connection]
[05:38:58] -!- jstenback has quit [Remote host closed the connection]
[05:39:29] -!- jstenback [jstenback!~jstenback@2620:101:8003:200:224:e8ff:fe39:34c2] has joined #linuxcnc
[06:14:15] <Jymmm> It would be interesting to see emc reunning on one of these and Mesa to create an add-on I/O board for it as a daughter card . Raspberry Pi http://www.element14.com/community/groups/raspberry-pi video demo here http://www.youtube.com/watch?v=6BbufUp_HNs
[06:18:15] -!- pingufan [[email protected]] has joined #linuxcnc
[07:06:46] -!- pingufan has quit [Quit: Konversation terminated!]
[07:06:47] -!- crib has quit [Remote host closed the connection]
[07:09:43] -!- crib [[email protected]] has joined #linuxcnc
[07:31:35] -!- Valen [Valen!~Valen@2001:44b8:3199:9100:21e:8cff:fe63:55df] has joined #linuxcnc
[07:43:47] -!- DJ9DJ [DJ9DJ!~Deejay@unaffiliated/dj9dj] has joined #linuxcnc
[07:44:47] <DJ9DJ> moin
[07:45:46] -!- Gast617 has quit [Read error: Connection reset by peer]
[08:00:01] -!- capricorn_one has quit [Remote host closed the connection]
[08:03:35] -!- factor has quit [Read error: Connection reset by peer]
[08:05:23] -!- pingufan [[email protected]] has joined #linuxcnc
[08:14:26] -!- rob_h [[email protected]] has joined #linuxcnc
[08:20:26] -!- factor [factor!~factor@r74-195-184-248.msk1cmtc01.mskgok.ok.dh.suddenlink.net] has joined #linuxcnc
[08:23:23] -!- m42 [m42!~M_42@unaffiliated/m42] has joined #linuxcnc
[08:26:55] -!- icarusfactor [icarusfactor!~factor@r74-195-184-248.msk1cmtc01.mskgok.ok.dh.suddenlink.net] has joined #linuxcnc
[08:27:13] -!- factor has quit [Disconnected by services]
[08:27:17] icarusfactor is now known as factor
[08:35:33] <pjm> good morning
[08:41:18] <DJ9DJ> good morning
[09:07:05] -!- pingufan has quit [Quit: Konversation terminated!]
[09:07:26] <pjm> ah i guess u have a ham license DJ9DJ !
[09:07:42] <DJ9DJ> yes :)
[09:08:34] <pjm> same here, mine is m0eyt but i'm not active on the tx side
[09:08:54] <DJ9DJ> hehe, same here...
[09:09:03] <pjm> i use my cnc mill mostly for making bits of waveguide and feeds etc
[09:13:56] <DJ9DJ> nice
[09:18:34] <pjm> although last was some nice polycarbonate cutting for my clock http://pjm.dyndns.org/twtr/nixie4.jpg
[09:19:00] -!- sumpfralle has quit [Quit: Leaving.]
[09:23:51] <cncbasher> g0jqo
[09:29:55] <DJ9DJ> hui, very nice
[09:39:38] -!- mhaberler [[email protected]] has joined #linuxcnc
[09:46:34] -!- m42 has quit [Quit: m42]
[09:59:00] <archivist> an M must be a youngster /me was G8
[10:03:40] <cncbasher> yea although i started young my first was a G6 ,my son has M3EAM
[10:04:17] <cncbasher> he got that on his 14th birthday
[10:19:24] <pjm> lol yeah the M0 is my second call, i had a G7 prior to that
[10:25:34] <archivist> small toy http://www.theatlantic.com/magazine/archive/2012/03/iron-giant/8886/
[10:43:34] <cncbasher> yea thats one hell of a toy
[10:48:19] <archivist> just been trying to find the one that used to be in Sheffield 12000 ton, went to see it in operation
[10:48:49] <Loetmichel> and who made it possible?
[10:48:52] <Loetmichel> ... germans ;-)
[10:54:54] <archivist> http://www.geograph.org.uk/photo/1668885 8000 tone due to a ram fault but 12000 iirc when all rams working
[10:55:05] <archivist> 1912!
[10:55:33] <archivist> I was with chris when that was taken
[10:57:12] -!- iwoj has quit [Quit: Computer has gone to sleep.]
[11:36:04] -!- bedah [[email protected]] has joined #linuxcnc
[11:36:07] <elmo40> archivist: back when they wanted parts made from one piece. Now, they would rather weld strips together and hope to get the same strength.
[11:36:51] <archivist> forging is still being used for certain work
[11:40:07] -!- phantoxe [[email protected]] has joined #linuxcnc
[11:47:57] <archivist> same trip we saw this in operation http://www.geograph.org.uk/photo/1689068
[11:51:27] -!- pingufan [[email protected]] has joined #linuxcnc
[12:24:02] -!- mhaberler has quit [Quit: mhaberler]
[12:27:33] -!- mhaberler [[email protected]] has joined #linuxcnc
[13:04:54] -!- Tecan has quit [Quit: live long and phosphor]
[13:15:07] -!- mhaberler has quit [Quit: mhaberler]
[13:16:49] -!- pingufan has quit [Quit: Konversation terminated!]
[13:19:38] -!- pingufan [[email protected]] has joined #linuxcnc
[13:25:17] -!- ries [[email protected]] has joined #linuxcnc
[13:35:16] <A2Sheds> is andypugh off sailing the high seas?
[13:39:44] <archivist> in port http://www.clipperroundtheworld.com/index.php/follow/race-viewer/
[13:49:15] -!- pingufan has quit [Quit: Konversation terminated!]
[14:00:11] -!- pingufan [[email protected]] has joined #linuxcnc
[14:02:42] -!- Cylly [[email protected]] has joined #linuxcnc
[14:03:54] -!- skunkworks [[email protected]] has joined #linuxcnc
[14:04:50] -!- mrsun_ has quit [Ping timeout: 260 seconds]
[14:04:57] -!- Loetmichel has quit [Ping timeout: 252 seconds]
[14:06:02] -!- FinboySlick [[email protected]] has joined #linuxcnc
[14:12:01] <skunkworks> http://www.cnczone.com/forums/1075406-post134.html
[14:12:47] <skunkworks> I think he has a pretty good understanding how emc works... Right? He makes the the kflop.
[14:15:20] -!- mhaberler [[email protected]] has joined #linuxcnc
[14:18:03] -!- mrsun_ [mrsun_!~mrsun@c-c03de253.4551536--62697410.cust.bredbandsbolaget.se] has joined #linuxcnc
[14:22:02] -!- Valen has quit [Quit: Leaving.]
[14:31:00] <cncbasher> skunkworks > yea tom's a great guy ,
[14:37:20] <pcw_home> Why would you so a circle in line segments?
[14:37:33] <archivist> crappy cam :)
[14:37:44] <pcw_home> Oh
[14:38:20] <mikegg> BobCAM for solidworks likes to show you an arc in the tool path preview, and then substitute a line in the gcode
[14:38:20] <archivist> and....drawing formats to gcode where the drawing is in segments due to similar crappyness
[14:38:21] <pcw_home> Looks like he still is assuming exact stop mode for LinuxCNC
[14:38:22] <FinboySlick> I was actually tempted to ask "But EMC doesn't do arcs as line segments, does it?".
[14:39:40] <archivist> and stl source will be in segments too
[14:39:44] <pcw_home> or maybe its a general profiling type of thing where arbitrary curve performance is the real question
[14:40:47] <skunkworks> http://www.cnczone.com/forums/1075754-post137.html
[14:41:02] <awallin> g2/3 is actually quite limited, since they are allways in one of the principal planes (xy, xz, yz)
[14:41:11] Cylly is now known as Loetmichel
[14:42:07] <skunkworks> awallin: all we need is someone to write a new motion/planner... ;) hint hint. (for me it works just great as is)
[14:42:52] <pcw_home> it would be interesting to do circle experiment
[14:43:58] <skunkworks> Heh. I don't think you would get anywhere near 100ipm with .0003 tolerance with emc... (if .3 mills is .0003)
[14:44:13] <skunkworks> I should boot up the laptop.
[14:44:33] <archivist> skunkworks, I can think of ways :)
[14:44:44] <skunkworks> (with 40in/sec^2 acceleration)
[14:45:02] <archivist> think outside the box and use rotaries
[14:45:07] <skunkworks> heh
[14:45:41] <pcw_home> He not talking about actual machine performance just how fast the trajectory can be generated
[14:47:12] <archivist> he is assuming short segments for accuracy, get the code and machine right for the job and your segments get longer
[14:47:58] -!- servos4ever [servos4ever!~chatzilla@74-45-201-222.dr01.hnvr.mi.frontiernet.net] has joined #linuxcnc
[14:57:22] <archivist> an example from my helical gear gcode is G1 F4 Y#4 a[0-#5] z#6 which is the entire tooth cut
[14:58:08] <pcw_home> he's also assuming LinuxCNC is in stop mode
[14:58:22] <pcw_home> exact stop mode
[15:01:43] <pcw_home> archivist: because your mechanics do the curve?
[15:03:45] <archivist> yes 4th axis is rotating
[15:09:04] <skunkworks> I get 40ipm...
[15:09:53] -!- skunkworks__ [[email protected]] has joined #linuxcnc
[15:12:49] <skunkworks__> http://pastebin.com/WkjSv57H
[15:13:02] <skunkworks> that gets me almost 50ipm
[15:13:56] <skunkworks__> g64p.001Q.001
[15:13:59] <skunkworks__> gets me 80
[15:16:12] <skunkworks__> g64p.01Q.01 gets my 180ipm or so..
[15:16:25] <skunkworks__> unless I am doing something wrong
[15:17:14] <cradek> what's your accel in X,Y?
[15:18:13] <skunkworks> 40in/sec^2
[15:18:40] <cradek> 1" radius?
[15:18:41] <skunkworks> if I set the accelleration to 100in/sec^2 I get about 210ish ipm
[15:18:45] <skunkworks> yes
[15:19:29] <skunkworks__> with g64p.01Q.01
[15:19:31] <cradek> ok just wondered - centripetal accel limits you to 379 ipm
[15:19:59] <cradek> if you set you maxvel at 9999 and you do a g3 with radius=1, you'll see that 379
[15:20:58] <skunkworks> heh - http://www.cnczone.com/forums/1075406-post134.html
[15:21:07] <skunkworks> he came up with 379 also.
[15:21:29] <cradek> ah ok
[15:28:34] <skunkworks> yep - circle is 379ipm
[15:28:46] <skunkworks> so - just a limit of line-line blending
[15:30:29] <awallin> how many G1 moves per second does it do for that 222-sided polygon
[15:30:44] <awallin> not close to one G1-move per traj_cycle I guess?
[15:31:20] <cradek> skunkworks: that's nice (I didn't test it, I only did the math)
[15:31:47] -!- psha[work] has quit [Quit: Lost terminal]
[15:32:49] <pcw_home> about 5 ms/segment
[15:33:30] <awallin> ok. I guess any improvements on lookahead must get rid of the 1block/traj-cycle limitation also then!
[15:33:55] <cradek> I think the typical config today is 1ms traj cycle (used to be we used 10ms!)
[15:35:00] <pcw_home> skunkworks what is your traj cycle?
[15:35:14] <skunkworks__> 1ms
[15:35:27] <pcw_home> ok
[15:35:36] <skunkworks__> It is sim axis.
[15:35:59] <skunkworks__> I just changed the velocity's to 9 and the acceleration to 40
[15:36:48] <skunkworks__> I increased the tollerence to .1 - it is funny to see. still only reaches around 240ipm
[15:39:25] <skunkworks__> ask me what happens when you do a g64p005 when cutting a part... ;) Meant to type g64p.005
[15:39:51] <cradek> oh ouch
[15:39:52] <pcw_home> 5 inch tolerance?
[15:40:22] <cradek> although I bet that wasn't funny at the time, the thought of it makes me laugh a bit.
[15:40:45] <pcw_home> OK for really really big things
[15:44:18] <cradek> http://timeguy.com/cradek-files/emc/g64p5-splashscreen.png
[15:46:31] <skunkworks> heh
[15:46:57] <skunkworks> Yes - it cut strait though a part that was supposed to have a profile... ;)
[15:53:08] -!- awallin has quit [Ping timeout: 260 seconds]
[16:14:41] -!- phantoxe has quit [Remote host closed the connection]
[16:16:22] -!- pingufan has quit [Quit: Konversation terminated!]
[16:20:37] -!- syyl [[email protected]] has joined #linuxcnc
[16:24:50] -!- awallin [[email protected]] has joined #linuxcnc
[16:26:03] -!- Fox_Muldr has quit [Ping timeout: 265 seconds]
[16:26:58] -!- phantoxe [[email protected]] has joined #linuxcnc
[16:27:25] -!- Fox_Muldr [[email protected]] has joined #linuxcnc
[16:42:31] <MrSunshine> hmm, vectric aspire isnt realy parametric or whatever its called is it ?
[16:42:39] <MrSunshine> (so i can move points to a specefic position)
[16:45:36] <MrSunshine> ahh yes, i can use it together with a cad program if i want to :P
[16:59:27] <jdhnc> I use autocad and draftsight with Cut2D
[17:02:52] <jdhnc> do you have aspire?
[17:06:14] <MrSunshine> trying it out
[17:06:31] <MrSunshine> would be real neat if i could use it both for ornamental work and for 3d metal cutting for parts =)
[17:06:37] <MrSunshine> it has a real nice interface
[17:07:18] <Loetmichel> re @ home
[17:08:23] -!- n2diy has quit [Ping timeout: 245 seconds]
[17:51:06] -!- The_Ball has quit [Ping timeout: 265 seconds]
[17:52:23] -!- The_Ball [[email protected]] has joined #linuxcnc
[17:54:30] -!- mhaberler has quit [Quit: mhaberler]
[17:55:26] -!- elmo40 has quit [Read error: Connection reset by peer]
[17:56:59] -!- elmo40 [elmo40!~Elmo40@CPE002129acb2d3-CM001bd7a89c28.cpe.net.cable.rogers.com] has joined #linuxcnc
[18:15:28] -!- The_Ball has quit [Ping timeout: 260 seconds]
[18:19:39] <pcw_home> http://www.mmrc.iss.ac.cn/~xgao/papernc/29-10.pdf
[18:20:57] -!- The_Ball [[email protected]] has joined #linuxcnc
[18:22:29] <archivist> luverly bit of maffs /me wont be implementing
[18:27:30] <archivist> that was something awallin wanted iirc
[18:29:33] -!- maximilian_h [[email protected]] has joined #linuxcnc
[18:30:43] -!- maximilian_h has quit [Client Quit]
[18:30:53] -!- maximilian_h [[email protected]] has joined #linuxcnc
[18:33:38] -!- maximilian_h [[email protected]] has parted #linuxcnc
[18:33:57] -!- maximilian_h [[email protected]] has joined #linuxcnc
[18:35:35] <MrSunshine> damn vectric realy is a nice program to work with, maybe not as feature rich as the high end cam packages like mastercam etc but very easy to work with, fast .. and one can import dxf files, alter them the way they need to be and generate the toolpaths realy quick =)
[18:35:43] <MrSunshine> vectric aspire
[18:54:35] -!- iwoj [[email protected]] has joined #linuxcnc
[18:57:23] -!- phantoxe has quit []
[18:59:59] -!- FinboySlick has quit [Remote host closed the connection]
[19:00:11] -!- FinboySlick [[email protected]] has joined #linuxcnc
[19:01:31] <joe9> mikegg: I got it out. went to the Napa machine shop and the person used a press to get it out. had to use the auto puller tool to remove the bearings from the sleeve.
[19:01:41] <joe9> the bearings were too tight on the sleeve.
[19:02:23] <joe9> I do not see any signs of rust. Why would the bearings be so tight on the sleeve? Is that how it is supposed to be? Anyway, just wanted to let you know that I am cool now.
[19:03:06] <mikegg> good deal
[19:03:06] <archivist> joe9, bearings can be bought with clearance designed to close up after pressing on, they are tight then
[19:03:36] <mikegg> yeah, I would expect them to be pretty tight
[19:03:59] <joe9> archivist: i want something that is a bit easier to remove. not something that needs a press or impact wrench.
[19:04:08] <joe9> had to use an impact wrench with the puller.
[19:04:58] <archivist> so they are scrap now even if they were ok
[19:05:26] <joe9> i think they cannot be used.
[19:05:44] <joe9> will buy new ones. need to figure out something that does not bind so hard.
[19:38:07] -!- vladimirek [[email protected]] has joined #linuxcnc
[19:40:04] -!- m42 [m42!~M_42@unaffiliated/m42] has joined #linuxcnc
[19:42:27] -!- m42 has quit [Client Quit]
[19:44:35] -!- isssy [[email protected]] has joined #linuxcnc
[19:47:51] -!- Thetawaves [[email protected]] has joined #linuxcnc
[19:49:39] <iwoj> Hey d00ds. Has anyone here successfully recompiled their own version of EMC2 Linux?
[19:50:13] <archivist> plenty, ask the real question
[19:52:08] <iwoj> This will seems really stupid, but I can't get the damn source code.
[19:52:20] <iwoj> when I call apt-get install linux-source
[19:52:28] <iwoj> it pulls down an empty directory.
[19:52:42] <iwoj> sudo apt-get install linux-source
[19:53:00] <iwoj> (which is apparently what the EMC2 source code is looking for when I try to build that.
[19:54:16] <archivist> http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Installing_EMC2#Resolving_outstanding_build_dependencies
[19:55:19] <archivist> better http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Installing_EMC2#On_Ubuntu_10_04_or_8_04_from_source
[19:55:37] -!- kazi [[email protected]] has joined #linuxcnc
[19:56:15] <iwoj> beauty. thanks.
[19:57:53] -!- syyl_ws [[email protected]] has joined #linuxcnc
[20:03:25] -!- factor has quit [Read error: Connection reset by peer]
[20:03:37] <joe9> is there anything that I can do before I put the new bearings in, to ensure that it will be smoother to remove them the next time?
[20:04:07] <joe9> I am looking at http://www.mcmaster.com/#6661k104 to replace what I had initially
[20:06:02] <iwoj> Sorry. I actually asked the wrong question. I need to recompile RTAI.
[20:06:06] <iwoj> Has anyone done that?
[20:06:13] <joe9> like putting in a slightly bigger bearing with the sleeve wrapped in teflon oslt.
[20:07:18] <archivist> joe9, taking a sliver off the shaft is what I would do, but requires some setup, lathe and skill
[20:07:41] <joe9> archivist: is that a good idea? will it increase play?
[20:08:14] <archivist> bearings have play by design
[20:08:24] <joe9> even getting the whole drive sleeve assembly (with the bearings) was a pita. Had to go to a shop with press to do that.
[20:08:41] <joe9> I meant runout, sorry.
[20:09:30] -!- isssy has quit [Quit: Bye Bye]
[20:09:50] <archivist> have you even inspected the internal morse taper yet
[20:10:19] <joe9> archivist: is it a good idea to replace both bearings with a single cylindrical bearing?
[20:10:31] <joe9> archivist: no, I have not inspected it other than visually.
[20:10:42] <joe9> the machine shop person told me that it fell right off.
[20:10:48] <joe9> he did not even charge me for it.
[20:11:12] <joe9> but, I had hit it with a mallet and wooden dowel and I am sure it did not fall right off.
[20:11:33] <joe9> but, I think when using a press, his definition of "falling right off" might be different from mine.
[20:11:34] <archivist> the runout on abused spindles includes internal damage
[20:12:16] <joe9> archivist: the bearings are gone. but, the spindle seems ok. barely a scratch on it.
[20:12:33] <joe9> actually, no scratches.
[20:12:36] -!- ve7it [[email protected]] has joined #linuxcnc
[20:12:41] <archivist> is it bent
[20:12:45] <joe9> except for the bottom where the pressure was applied.
[20:13:32] <archivist> you should go to a college evening class for machine work
[20:13:50] <joe9> archivist: not that I can see.
[20:14:05] <archivist> do you have a lathe
[20:14:09] <joe9> looks like this. http://www.machinistblog.com/wp-content/uploads/2010/09/Craftsman9.jpg
[20:14:15] <joe9> archivist: no, no lathe.
[20:14:41] <archivist> that part up the top we dont care much about
[20:15:08] <joe9> oh, ok.
[20:15:09] <iwoj> Has anyone here compiled their own custom version of RTAI?
[20:15:37] <archivist> iwoj, again wrong question ask the real question
[20:15:38] <joe9> archivist: that is what I am talking about with the scratch and which is proving a bit hard for the bearings to go it.
[20:15:43] <joe9> s/it/in
[20:16:17] <joe9> I used the impact wrench with puller to get from http://www.machinistblog.com/wp-content/uploads/2010/09/Craftsman8.jpg to http://www.machinistblog.com/wp-content/uploads/2010/09/Craftsman9.jpg
[20:16:50] <joe9> for this, I went to the machine shop: from http://www.machinistblog.com/wp-content/uploads/2010/09/Craftsman7.jpg to http://www.machinistblog.com/wp-content/uploads/2010/09/Craftsman8.jpg
[20:17:46] <archivist> http://www.machinistblog.com/wp-content/uploads/2010/09/Craftsman6.jpg part on the right os the part needing inspection
[20:18:19] -!- phantoxe [[email protected]] has joined #linuxcnc
[20:20:21] <joe9> that i did not do much with it. just removed it and then put the new bearings on it. the bearings came off when I hit it with a rubber mallet.
[20:20:38] <archivist> joe9, you have been messing with the drive not the spindle!
[20:20:44] <joe9> it was pretty easy to remove, actually.
[20:20:58] <iwoj> so i'm recompiling RTAI but it can't find my linux source. But never mind, I just found this page http://wiki.linuxcnc.org/cgi-bin/wiki.pl?RtaiSteps
[20:21:13] <joe9> archivist: the spindle, I changed the bearings on it. Now, I am doing the drive sleeve.
[20:21:17] -!- FinboySlick has quit [Read error: Connection reset by peer]
[20:22:12] -!- factor [factor!~factor@r74-195-184-248.msk1cmtc01.mskgok.ok.dh.suddenlink.net] has joined #linuxcnc
[20:22:13] <archivist> the drive sleeve has/should have no effect on chuck runout at all
[20:23:30] <joe9> oh, ok. I noticed that the pulley was moving around a lot. while I was doing all this, thought might be a good idea to replace those bearings too.
[20:23:36] <joe9> and put some better bearings.
[20:24:55] <joe9> archivist: btw, can I use a little bit of sand paper to increase the diameter of the head in this picture: http://www.machinistblog.com/wp-content/uploads/2010/09/Craftsman7.jpg
[20:24:56] <archivist> because they are close together they may have deliberately put them on tight to reduce bearing clearance
[20:26:03] <joe9> probably, yes.
[20:26:42] <archivist> sandpaper near running bearings is a nono
[20:26:48] <joe9> archivist: is there anything that you would recommend doing other than using a lathe or big tool, to make the bearings go in easier?
[20:27:08] <joe9> archivist: thanks, good to know. I am stupid enough to have done it, if you had not said so.
[20:27:17] <archivist> pressing bearings is normal
[20:27:27] -!- m42 [[email protected]] has joined #linuxcnc
[20:27:39] -!- m42 has quit [Changing host]
[20:27:39] -!- m42 [m42!~M_42@unaffiliated/m42] has joined #linuxcnc
[20:29:16] -!- andymanak [[email protected]] has joined #linuxcnc
[20:30:55] <joe9> archivist: why does it need 2 bearings? why not just one?
[20:32:00] <archivist> to properly distribute the forces (from the belt drive) that bend the drive
[20:34:15] -!- isssy [[email protected]] has joined #linuxcnc
[20:36:02] <joe9> mikegg: wondering if you would be interested in removing a sliver off of the drive sleeve and the head, so I could tap the bearings in?
[20:36:22] <joe9> archivist: thanks.
[20:36:31] <archivist> joe9, dont bother, just press as it was designed
[20:36:43] <mikegg> I think that's a better plan
[20:36:57] <joe9> archivist: "Install the drive sleeve assembly into the head.  Put a light coat of oil on the outer bearing race of the drive sleeve bearings and push the drive sleeve assembly into place from the top.  Try pushing it into place manually; if the bearings align correctly you can push or gently tap the assembly into position.  If it won’t go in easily then you can pull it into place using a threaded rod passed through the ...
[20:37:03] <joe9> ... assembly.  Use a scrap of wood or metal below and a washer and nut on top and tighten the nut to pull the assembly down.  You only need to get it in far enough to install the upper circlip.  Do not distort or damage the lower circlip." found this at http://www.machinistblog.com/restoring-a-craftsman-15%E2%80%B3-drill-press/
[20:37:16] <mikegg> the difference between a sliver and "oops this part is trashed" is not very mucb
[20:37:35] <archivist> a nats cock
[20:37:35] -!- andymanak [[email protected]] has parted #linuxcnc
[20:37:41] <joe9> mikegg: yes, that makes sense.
[20:38:11] -!- FinboySlick [[email protected]] has joined #linuxcnc
[20:38:27] <joe9> archivist: what is a "nats cock"? googling up on that word takes me to all porn stuff.
[20:38:37] <joe9> archivist: you mean the instructions are BS.
[20:38:40] <joe9> ?
[20:38:59] <isssy> http://www.youtube.com/watch?v=6BbufUp_HNs
[20:39:08] <mikegg> haha lol
[20:39:37] -!- m42 has quit [Quit: m42]
[20:39:55] <mikegg> just put it in the freezer, and put the bearings in the oven on about 200 F
[20:40:12] <mikegg> and be ready to go quick
[20:40:22] <archivist> gnats are small therefore a "gnats cock" is a small amount, common engineering term in the uk
[20:40:27] <joe9> mikegg: good idea. thanks.
[20:40:33] -!- djdelorie [[email protected]] has joined #linuxcnc
[20:43:16] <joe9> Can I take the spindle to a machine shop and ask them to check if it is straight?
[20:44:14] <archivist> ask your friendly machine shop not us
[20:44:22] -!- sumpfralle [[email protected]] has joined #linuxcnc
[20:45:14] <joe9> archivist: I just moved to this area. Have no friendly machine shop yet. just wanted to check if it is a big deal or if it is something that they can do easily.
[20:45:22] <archivist> machine a morse taper on a lathe, mount your spindle on that test mandrel then rotate
[20:45:22] <joe9> or, do normally.
[20:45:45] <joe9> archivist: ok, thanks.
[20:46:11] <archivist> get v blocks and a surface table, is the other method
[20:51:24] <joe9> mikegg: I am willing to take the risk of the parts getting damaged. would you still be willing to do that?
[20:51:42] <archivist> also see if any local model engineer groups near you
[20:54:20] -!- skunkworks__ has quit [Remote host closed the connection]
[20:54:41] <MrSunshine> hmm, i find aspire lacking somewhat in its cutting abilities :(
[20:54:50] <MrSunshine> yeah, great for ornamental work =)
[20:54:56] <MrSunshine> but maybe not for machine part making :P
[21:02:19] -!- mhaberler [[email protected]] has joined #linuxcnc
[21:02:25] -!- syyl_ws has quit [Quit: Verlassend]
[21:03:31] <jdhnc> isn't aspire made for artsy stuff?
[21:05:27] -!- FinboySlick has quit [Read error: Connection reset by peer]
[21:11:39] -!- maximilian_h has quit [Quit: Leaving.]
[21:14:49] <MrSunshine> jdhnc, yeah seems so =)
[21:14:55] -!- sumpfralle has quit [Ping timeout: 246 seconds]
[21:15:05] <MrSunshine> tho it can be used to cut alot of stuff i guess
[21:15:12] <MrSunshine> as you can import dxf files and generate toolpaths for it =)
[21:15:42] <MrSunshine> but i wanted to use a stl model, slice it (due to the fact that its 33mm thick no endmills i have can cut that) but it didnt work to well =)
[21:18:14] <jdhnc> I thought aspire would slice in any axis
[21:19:59] -!- sumpfralle [[email protected]] has joined #linuxcnc
[21:23:04] -!- sumpfralle has quit [Read error: Connection reset by peer]
[21:24:38] -!- vladimirek has quit [Remote host closed the connection]
[21:25:04] -!- sumpfralle [[email protected]] has joined #linuxcnc
[21:29:57] <MrSunshine> jdhnc, dont know, got it sliced down Z but as i get 3d models only the "3d roughing/finnishing" stuff work, havent learned how to convert stuff into vectors etc yet :P
[21:30:05] <MrSunshine> so i can use the pocket stuff and all that =)
[21:32:00] -!- FinboySlick [[email protected]] has joined #linuxcnc
[21:35:44] -!- sumpfralle1 [[email protected]] has joined #linuxcnc
[21:38:30] -!- sumpfralle2 [[email protected]] has joined #linuxcnc
[21:38:30] -!- sumpfralle1 has quit [Read error: Connection reset by peer]
[21:38:35] -!- sumpfralle has quit [Read error: No route to host]
[21:39:04] -!- kazi has quit [Quit: Leaving]
[21:40:38] -!- kaz [[email protected]] has joined #linuxcnc
[21:41:10] -!- andymanak [[email protected]] has joined #linuxcnc
[21:41:15] -!- andymanak [[email protected]] has parted #linuxcnc
[21:44:24] -!- sumpfralle2 has quit [Read error: Connection reset by peer]
[21:51:40] -!- sumpfralle [[email protected]] has joined #linuxcnc
[21:52:34] -!- isssy has quit [Quit: Bye Bye]
[21:55:58] -!- The_Ball has quit [Ping timeout: 260 seconds]
[21:56:08] -!- The_Ball_ [[email protected]] has joined #linuxcnc
[21:56:34] -!- the_wench has quit [Remote host closed the connection]
[21:56:49] -!- the_wench [[email protected]] has joined #linuxcnc
[21:58:12] -!- JT-Shop [[email protected]] has joined #linuxcnc
[22:01:30] -!- The_Ball_ has quit [Ping timeout: 272 seconds]
[22:01:41] -!- raynerd [raynerd!~craynerd@host86-169-159-55.range86-169.btcentralplus.com] has joined #linuxcnc
[22:02:10] <raynerd> Just a quick one, you know the new raspberry pi coming out, will it be able to run emc2?
[22:03:04] <djdelorie> it has no parallel port...
[22:03:40] <djdelorie> but it will run the same Fedora as your PC, just with a lightweight desktop. You could hook up the GPIOs I suppose.
[22:03:52] <djdelorie> "same" being at the source level, of course it's not x86...
[22:05:46] -!- FinboySlick has quit [Quit: Leaving.]
[22:06:36] <raynerd> humm ok
[22:06:45] <raynerd> not sure what GPIOs mean?
[22:06:52] <Thetawaves> raynerd, there is limited rtai for arm
[22:06:55] -!- The_Ball [[email protected]] has joined #linuxcnc
[22:07:32] <Thetawaves> raynerd, GPIO is general purpose IO and really only exists on SOC (system on chip aka only 1 chip)
[22:07:39] <JT-Shop> Dang! pop a modem into my desktop and the internet starts to work again... but I must be in a time warp as everyone is speaking in tounge
[22:10:13] <DJ9DJ> gn8
[22:11:00] -!- DJ9DJ has quit [Quit: bye]
[22:11:27] -!- jthornton [[email protected]] has joined #linuxcnc
[22:11:28] <djdelorie> GPIO: think "it's a parallel port, but without the fancy connector"
[22:12:59] -!- raynerd has quit [Ping timeout: 244 seconds]
[22:17:26] <archivist> Im waiting for a raspberry pi on ebay I see some wag has created a case 290677470826
[22:30:50] <Thetawaves> ...and here i thought parallel port was the fancy connector
[22:44:51] <djdelorie> it's the connector and the protocol, but linuxcnc doesn't use the protocol anyway
[22:46:59] -!- factor has quit [Read error: Connection reset by peer]
[22:47:24] -!- syyl has quit [Quit: Leaving]
[22:54:09] -!- Fox_Muldr has quit [Ping timeout: 265 seconds]
[22:56:02] -!- Fox_Muldr [[email protected]] has joined #linuxcnc
[23:08:48] -!- mhaberler has quit [Quit: mhaberler]
[23:08:54] -!- servos4ever has quit [Quit: ChatZilla 0.9.85 [SeaMonkey 2.0.11/20101206162726]]
[23:09:55] -!- zlog has quit [Remote host closed the connection]
[23:09:56] -!- Tom_itx has quit []
[23:11:31] -!- zlog [[email protected]] has joined #linuxcnc
[23:11:33] -!- Tom_itx [Tom_itx!~Tl@unaffiliated/toml/x-013812] has joined #linuxcnc
[23:13:37] -!- FinboySlick [[email protected]] has joined #linuxcnc
[23:28:36] -!- GoSebGo has quit [Quit: Bye]
[23:28:58] -!- GoSebGo [[email protected]] has joined #linuxcnc
[23:49:41] -!- raynerd [raynerd!~craynerd@host86-169-159-55.range86-169.btcentralplus.com] has joined #linuxcnc
[23:57:05] -!- raynerd has quit []