Back
[00:02:35] -!- moorbo has quit [Ping timeout: 252 seconds]
[00:08:50] -!- moorbo_ has quit [Read error: Connection reset by peer]
[00:08:51] -!- ve7it has quit [Read error: Connection reset by peer]
[00:09:20] -!- ve7it [ve7it!~LawrenceG@S01060014d19d0b68.pk.shawcable.net] has joined #linuxcnc-devel
[00:11:44] -!- MattyMatt_ has quit [Ping timeout: 256 seconds]
[00:20:43] -!- fran_becu_ has quit [Remote host closed the connection]
[00:27:20] -!- moorbo has quit []
[00:27:40] -!- mhaberler has quit [Quit: mhaberler]
[00:34:15] -!- kwallace2 [kwallace2!~kwallace@smb-130.sonnet.com] has parted #linuxcnc-devel
[00:38:25] amnesic_away is now known as amnesic
[00:51:06] -!- kwallace2 [kwallace2!~kwallace@smb-130.sonnet.com] has joined #linuxcnc-devel
[00:54:15] -!- kwallace2 [kwallace2!~kwallace@smb-130.sonnet.com] has parted #linuxcnc-devel
[00:55:34] -!- Mr_Sheesh has quit [Ping timeout: 265 seconds]
[00:59:33] -!- LawrenceG [LawrenceG!~LawrenceG@S01060014d19d0b68.pk.shawcable.net] has joined #linuxcnc-devel
[01:02:13] -!- ve7it has quit [Read error: No route to host]
[01:03:37] -!- Nick001-shop has quit [Remote host closed the connection]
[01:04:21] -!- lg_ [lg_!~LawrenceG@S01060014d19d0b68.pk.shawcable.net] has joined #linuxcnc-devel
[01:07:03] -!- LawrenceG has quit [Read error: No route to host]
[01:07:53] -!- FinboySlick has quit [Quit: Leaving.]
[01:08:12] -!- FinboySlick1 has quit [Client Quit]
[01:18:59] -!- LeelooMinai has quit [Quit: No Ping reply in 180 seconds.]
[01:19:26] -!- LeelooMinai [LeelooMinai!~leeloo@184.175.46.197] has joined #linuxcnc-devel
[01:21:32] -!- mhaberler has quit [Quit: mhaberler]
[01:31:21] -!- LeelooMinai has quit [Quit: No Ping reply in 180 seconds.]
[01:31:45] -!- LeelooMinai [LeelooMinai!~leeloo@184-175-46-197.cable.teksavvy.com] has joined #linuxcnc-devel
[01:34:16] -!- greshny has quit [Client Quit]
[01:37:37] -!- amiri_ has quit [Ping timeout: 265 seconds]
[01:40:41] -!- Valen has quit [Ping timeout: 264 seconds]
[01:41:00] Valen1 is now known as Valen
[01:59:36] -!- tinkerer has quit [Remote host closed the connection]
[02:02:09] -!- jvrousseau has quit [Quit: (null)]
[02:05:06] -!- Mr_Sheesh has quit [Disconnected by services]
[02:13:04] -!- asdfasd has quit [Ping timeout: 250 seconds]
[02:19:19] -!- Loetmichel has quit []
[02:27:55] -!- mablae_ has quit [Read error: Connection reset by peer]
[02:29:29] -!- rob_h has quit [Ping timeout: 244 seconds]
[02:37:04] -!- ITChap has quit [Ping timeout: 265 seconds]
[02:45:13] -!- bnmorgan has quit [Changing host]
[03:20:03] -!- swingley has quit [Remote host closed the connection]
[03:22:12] -!- Servos4ever has quit [Quit: ChatZilla 0.9.91 [SeaMonkey 2.26.1/20140612173529]]
[03:24:53] -!- swingley has quit [Ping timeout: 260 seconds]
[03:26:42] -!- The_Ball has quit [Ping timeout: 264 seconds]
[03:35:27] -!- LatheBuilder has quit [Quit: Leaving]
[03:36:02] -!- Thetawaves has quit [Quit: This computer has gone to sleep]
[03:49:24] -!- skorasaurus has quit [Ping timeout: 245 seconds]
[04:03:38] amnesic is now known as amnesic_away
[04:04:55] -!- FinboySlick has quit [Quit: Leaving.]
[04:05:22] -!- archivist_herron has quit [Ping timeout: 244 seconds]
[04:16:41] -!- AR__ has quit [Ping timeout: 260 seconds]
[04:19:37] -!- sumpfralle has quit [Quit: Leaving.]
[04:25:06] -!- koo5 has quit [Ping timeout: 264 seconds]
[04:28:44] -!- jerryitt has quit [Quit: Connection closed for inactivity]
[04:29:33] <KGB-linuxcnc> 03Dewey Garrett 052.7 73f195a 06linuxcnc 10docs/src/config/ini_config.txt 10src/libnml/inifile/inifile.cc 10src/libnml/inifile/inifile.hh inifile.cc: support extending lines with backslash * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=73f195a
[04:29:34] <KGB-linuxcnc> 03Dewey Garrett 052.7 d6db5ca 06linuxcnc 10scripts/sim_pin sim_pin: better default for bit types * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=d6db5ca
[04:32:04] <KGB-linuxcnc> 03Sebastian Kuzminsky 05master 7118806 06linuxcnc 10debian/changelog Merge remote-tracking branch 'origin/2.7' * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=7118806
[04:39:13] -!- franco has quit [Remote host closed the connection]
[04:47:09] <KGB-linuxcnc> 03Dewey Garrett 052.7 6b5437d 06linuxcnc 10(30 files in 7 dirs) moveoff: Hal-only offsetting * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=6b5437d
[05:24:28] -!- unfy has quit [Quit: Miranda IM! Smaller, Faster, Easier. http://miranda-im.org]
[05:25:12] -!- lg_ has quit [Remote host closed the connection]
[05:30:02] -!- johtso has quit [Quit: Connection closed for inactivity]
[05:41:06] -!- zeitue has quit [Quit: Leaving]
[06:03:25] -!- Fox_Muldr has quit [Ping timeout: 272 seconds]
[06:07:19] -!- Miner_48er has quit [Ping timeout: 258 seconds]
[06:13:53] -!- kwallace has quit [Quit: Leaving.]
[06:49:13] -!- Zboonet has quit [Remote host closed the connection]
[06:49:40] -!- Avd has quit [Ping timeout: 246 seconds]
[06:57:53] -!- The_Ball has quit [Remote host closed the connection]
[07:04:21] -!- jthornton has quit [Ping timeout: 244 seconds]
[07:04:21] -!- nofxx has quit [Changing host]
[07:04:37] -!- JT-Shop has quit [Ping timeout: 252 seconds]
[07:05:22] -!- anth0ny_ has quit [Quit: anth0ny_]
[07:12:21] -!- taiden has quit [Quit: Connection closed for inactivity]
[07:20:10] -!- mhaberler has quit [Quit: mhaberler]
[07:30:45] -!- mhaberler has quit [Quit: mhaberler]
[07:32:57] -!- txp has quit [Ping timeout: 240 seconds]
[07:34:38] -!- ITChap has quit [Max SendQ exceeded]
[07:35:21] -!- swingley has quit [Remote host closed the connection]
[07:40:11] -!- swingley has quit [Ping timeout: 252 seconds]
[07:56:16] -!- quiqua has quit [Client Quit]
[08:05:50] -!- erictheise has quit [Quit: erictheise]
[08:18:37] -!- Deejay has quit [Quit: bbl]
[08:19:35] -!- skunkworks has quit [Ping timeout: 272 seconds]
[08:28:06] -!- Komzzzpa has quit [Quit: Konversation terminated!]
[08:28:48] -!- Komzzpa has quit [Remote host closed the connection]
[08:32:04] -!- bjmorel_work has quit [Read error: Connection reset by peer]
[08:36:12] -!- skunkworks [skunkworks!~chatzilla@str-broadband-ccmts-ws-26.dsl.airstreamcomm.net] has joined #linuxcnc-devel
[08:38:55] -!- JT-Shop [JT-Shop!~john@172.243.162.130] has joined #linuxcnc-devel
[08:38:57] -!- jthornton [jthornton!~john@172.243.162.130] has joined #linuxcnc-devel
[08:41:10] -!- swingley has quit [Ping timeout: 256 seconds]
[08:45:40] -!- mhaberler has quit [Quit: mhaberler]
[08:49:04] -!- JT-Shop has quit [Read error: Connection reset by peer]
[08:49:04] -!- jthornton has quit [Read error: Connection reset by peer]
[08:51:11] -!- JT-Shop [JT-Shop!~john@172.243.162.130] has joined #linuxcnc-devel
[08:51:14] -!- jthornton [jthornton!~john@172.243.162.130] has joined #linuxcnc-devel
[09:03:22] -!- rob_h [rob_h!~robh@94.11.19.170] has joined #linuxcnc-devel
[09:05:11] -!- john__ [john__!~john@172.243.162.130] has joined #linuxcnc-devel
[09:05:14] -!- jthornton_ [jthornton_!~john@172.243.162.130] has joined #linuxcnc-devel
[09:05:44] -!- jthornton has quit [Read error: Connection reset by peer]
[09:05:49] -!- JT-Shop has quit [Read error: Connection reset by peer]
[09:07:23] -!- pfred1 has quit [Quit: ..]
[09:22:13] -!- jthornton_ has quit [Read error: Connection reset by peer]
[09:22:16] -!- john__ has quit [Read error: Connection reset by peer]
[09:22:30] -!- jthornton [jthornton!~john@172.243.162.130] has joined #linuxcnc-devel
[09:22:33] -!- JT-Shop [JT-Shop!~john@172.243.162.130] has joined #linuxcnc-devel
[09:26:40] -!- BellinganRoy has quit [Quit: Konversation terminated!]
[09:31:05] -!- erve_ has quit [Ping timeout: 264 seconds]
[09:37:01] -!- tumdedum has quit [Ping timeout: 255 seconds]
[09:37:42] -!- tumdedum has quit [Changing host]
[09:41:56] -!- swingley has quit [Ping timeout: 244 seconds]
[09:45:28] -!- Tanz has quit [Quit: ChatZilla 0.9.91 [Firefox 34.0/20141125180439]]
[09:59:30] -!- syyl_ws has quit [Ping timeout: 244 seconds]
[09:59:56] -!- syyl has quit [Ping timeout: 256 seconds]
[10:01:02] -!- Miner_48er has quit [Quit: Leaving]
[10:13:14] -!- tinkerer [tinkerer!~tinkerer@mail.play-pla.net] has joined #linuxcnc-devel
[10:16:21] -!- ITChap has quit [Remote host closed the connection]
[10:18:58] -!- asdfasd has quit []
[10:23:29] -!- swingley has quit [Ping timeout: 265 seconds]
[10:48:16] -!- b_b has quit [Changing host]
[10:53:05] -!- bnu has quit [Client Quit]
[10:55:35] -!- syyl_ws_ has quit [Quit: Verlassend]
[11:10:51] -!- elderx__ has quit [Ping timeout: 265 seconds]
[11:18:27] -!- toudi_ [toudi_!~toudi@aeit226.neoplus.adsl.tpnet.pl] has joined #linuxcnc-devel
[11:21:09] -!- swingley has quit [Read error: Connection reset by peer]
[11:22:27] -!- micges has quit [Ping timeout: 265 seconds]
[11:23:46] -!- prontotest [prontotest!pronto@tasty.bagels.xxx] has joined #linuxcnc-devel
[11:23:47] -!- prontotest [prontotest!pronto@tasty.bagels.xxx] has parted #linuxcnc-devel
[11:26:18] -!- swingley has quit [Ping timeout: 264 seconds]
[11:27:19] -!- XXCoder has quit [Read error: Connection reset by peer]
[11:31:33] -!- nofxx has quit [Ping timeout: 252 seconds]
[11:34:06] -!- nofxx has quit [Changing host]
[11:36:05] -!- gaute has quit [Quit: Page closed]
[11:43:15] -!- sumpfralle has quit [Ping timeout: 250 seconds]
[11:49:31] -!- skunkworks has quit [Ping timeout: 265 seconds]
[12:06:55] -!- syyl_ has quit [Ping timeout: 265 seconds]
[12:14:17] -!- karavanjo has quit [Ping timeout: 240 seconds]
[12:26:17] Tom_itx is now known as Tom_L
[12:26:43] -!- swingley has quit [Ping timeout: 264 seconds]
[12:28:31] amnesic_away is now known as amnesic
[12:36:31] amnesic is now known as amnesic_away
[12:47:56] -!- txp has quit [Ping timeout: 244 seconds]
[13:01:57] -!- skorasaurus has quit [Ping timeout: 245 seconds]
[13:07:57] -!- bjmorel_work [bjmorel_work!~brianmore@71-13-81-38.static.bycy.mi.charter.com] has joined #linuxcnc-devel
[13:11:42] -!- nofxx has quit [Ping timeout: 244 seconds]
[13:16:49] -!- nofxx has quit [Changing host]
[13:17:57] -!- skunkworks [skunkworks!~skunkwork@68-115-41-210.static.eucl.wi.charter.com] has joined #linuxcnc-devel
[13:21:55] -!- nofxx has quit [Ping timeout: 264 seconds]
[13:22:53] -!- md-2 has quit [Remote host closed the connection]
[13:27:12] -!- swingley has quit [Ping timeout: 244 seconds]
[13:27:47] -!- md-2 has quit [Ping timeout: 245 seconds]
[13:28:33] -!- koo5 has quit [Ping timeout: 250 seconds]
[13:32:56] -!- nofxx_ has quit [Read error: Connection reset by peer]
[13:35:29] -!- phantoneD has quit [Ping timeout: 252 seconds]
[13:59:58] -!- PetefromTn_ [PetefromTn_!~IceChat9@75-136-60-251.dhcp.jcsn.tn.charter.com] has joined #linuxcnc-devel
[14:00:39] -!- piccata has quit [Max SendQ exceeded]
[14:01:00] -!- Tecan has quit [Changing host]
[14:02:22] -!- terinjokes has quit [Ping timeout: 245 seconds]
[14:05:31] -!- BellinganRoy has quit [Quit: Konversation terminated!]
[14:18:44] -!- jerryitt has quit [Quit: Connection closed for inactivity]
[14:20:20] -!- Valen has quit [Remote host closed the connection]
[14:21:18] -!- torpor_ has quit [Remote host closed the connection]
[14:23:09] -!- zeitue has quit [Ping timeout: 252 seconds]
[14:28:41] -!- swingley has quit [Ping timeout: 264 seconds]
[14:35:58] -!- anonimasu has quit [Read error: Connection reset by peer]
[14:50:24] <KGB-linuxcnc> 03Dewey Garrett 05dgarr/moveoff_touchy 1dc5885 06linuxcnc 10configs/sim/axis/moveoff/hookup_moveoff.tcl 03configs/sim/hookup_moveoff.tcl 10scripts/moveoff_gui moveoff_gui: provisions for non-axis ui * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=1dc5885
[14:50:24] <KGB-linuxcnc> 03Dewey Garrett 05dgarr/moveoff_touchy 6067d8b 06linuxcnc 03configs/sim/touchy/ngcgui/hookup_moveoff.tcl 03configs/sim/touchy/ngcgui/pyngcgui_touchy_moveoff.ini 03configs/sim/touchy/ngcgui/pyngcgui_touchy_moveoff.txt pyngcgui_touchy_moveoff.ini: touchy moveoff demo * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=6067d8b
[14:52:07] -!- kwallace [kwallace!~kwallace@smb-54.sonnet.com] has joined #linuxcnc-devel
[14:58:27] -!- dgarr [dgarr!~dgarrett@71-223-158-22.phnx.qwest.net] has joined #linuxcnc-devel
[15:00:09] <dgarr> i will test deb for this new branch and if ok add to 2.7 axis demo
https://www.youtube.com/watch?v=KY6hx7WBkO8
[15:00:15] <dgarr> touchy demo
https://www.youtube.com/watch?v=XGDq6620fPQ
[15:03:11] <cradek> dgarr: awesome
[15:03:34] -!- sliptonic has quit [Quit: Coyote finally caught me]
[15:03:55] koo5 is now known as slothmachine
[15:04:02] <skunkworks> dgarr, is the waypoint limit a hard limit or settable by a hal pin?
[15:06:09] <dgarr> hard coded at 1000 points, the distance /time between points is controlled by hal pins waypoint-sample-secs and waypoint-threshold
[15:06:55] <dgarr> it may take some experimentation to set the hal pins but for the use-cases that seem reasonable, i imageine 1000 is enough
[15:07:10] <skunkworks> ah - cool
[15:07:52] <dgarr> Dans ses écrits, un sage Italien Dit que le mieux est l'ennemi du bien.
[15:08:55] amnesic_away is now known as amnesic
[15:09:04] <skunkworks> sound about right :)
[15:09:05] <cradek> very true
[15:12:54] -!- Loetmichel has quit [Ping timeout: 244 seconds]
[15:28:57] -!- Topy44 has quit [Ping timeout: 265 seconds]
[15:28:59] -!- swingley has quit [Ping timeout: 245 seconds]
[15:52:37] -!- _Sync_ has quit [Ping timeout: 240 seconds]
[15:56:56] -!- valeech has quit [Client Quit]
[15:57:17] -!- mahtennek has quit []
[16:06:00] -!- erve has quit [Read error: Connection reset by peer]
[16:13:27] <kwallace> Smithy doesn't use LinuxCNC anymore?
[16:15:25] <skunkworks> looks like they went siemens
[16:16:36] -!- vapula has quit [Quit: Leaving]
[16:17:01] <kwallace> Their small CNC machines look a bit on the larger size too.
[16:18:52] <skunkworks> maybe that is why we have not seen matt around :(
[16:20:13] -!- karavanjo has quit [Ping timeout: 255 seconds]
[16:28:53] -!- erve_ has quit [Ping timeout: 265 seconds]
[16:34:01] -!- mhaberler has quit [Quit: mhaberler]
[16:34:29] <kwallace> Just thinking out load. Let's say I have a 100 ppr spindle encoder for a 10k RPM spindle. I use three fairly quick I/O pins to get A B and Z into a counter at base thread rates. On the other hand, what if I had the counter at the sensor. I could send count data at servo rates and be just as well off. Maybe? Then I could use Modbus RTU or Ethernet?
[16:37:07] <skunkworks> yes. is modbus realtime?
[16:37:37] * skunkworks hasn't played with modbus
[16:38:11] <kwallace> Oh crud, no, oops.
[16:38:49] <skunkworks> mesa already did all this stuff for you... ;)
[16:39:24] -!- dan2k3k4 has quit [Ping timeout: 244 seconds]
[16:39:30] <kwallace> Yeah, I think so. I need to start looking in that direction.
[16:41:02] <skunkworks> if you are converting from the printer port - the 5i25 would be a painless step as you could initally use your existing breakout board(s) (it can emulate 2 printer ports in effect)
[16:41:39] <skunkworks> But still give you high speed encoder counting, pwm and step generation.
[16:41:46] -!- ejb has quit [Quit: ZZZzzz…]
[16:41:58] <skunkworks> (up to the limit of single ended encoders..)
[16:43:48] <skunkworks> and a butt ton of expantion options
[16:44:00] * skunkworks likes mesa...
[16:44:18] <KGB-linuxcnc> 03Dewey Garrett 052.7 62b2ab9 06linuxcnc 10configs/sim/axis/moveoff/hookup_moveoff.tcl 03configs/sim/hookup_moveoff.tcl 10scripts/moveoff_gui moveoff_gui: provisions for non-axis ui * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=62b2ab9
[16:44:19] <KGB-linuxcnc> 03Dewey Garrett 052.7 8298b47 06linuxcnc 03configs/sim/touchy/ngcgui/hookup_moveoff.tcl 03configs/sim/touchy/ngcgui/pyngcgui_touchy_moveoff.ini 03configs/sim/touchy/ngcgui/pyngcgui_touchy_moveoff.txt pyngcgui_touchy_moveoff.ini: touchy moveoff demo * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=8298b47
[16:47:14] -!- jduhls has quit [Quit: Leaving]
[16:47:48] <kwallace> We have a 5i25 onboard. I'm exploring having the counter at the sensor so that the connection can be slower and maybe have more than one device on the wire.
[16:48:09] -!- bdon_ has quit [Ping timeout: 272 seconds]
[16:49:32] <skunkworks> andy has used ,umm, smart serial is it? to communicate realtime betweeen and arduino and mesa I think.
[16:50:21] <skunkworks> you would have to ask him
[16:51:01] <cradek> lots of the mesa and ppmc products do exactly this (count in specialized hardware, and then the servo cycle just reads the count at its leisure)
[16:51:54] <cradek> so you're not inventing anything new, unless you decide to try to reimplement the idea badly in an arduino or pic or something, as people do
[16:52:39] -!- quiqua has quit [Quit: quiqua]
[16:55:34] <bjmorel_work> Signal isolator for KBIC-125 from KB is about $75.00 , Spinx1 from Mesa, $24.00
[16:55:43] <bjmorel_work> Not really a hard choice
[16:56:52] <skunkworks> And you know which one is probably build better :)
[16:57:04] <cradek> I think the kbic stuff is nice
[16:57:17] <cradek> sherline uses a kbic drive on their spindles and it's great
[16:57:36] <kwallace> I'm thinking I need to come up with an accessory I/O port that is enough of an improvement in order to jump over the current I/O port.
[16:57:50] <cradek> iirc, I bought the isolator board, but by the time I got it I had already installed an opto myself
[16:58:06] <bjmorel_work> I think they make nice stuff, but it's not 3x as nice for sure.
[16:58:33] <cradek> http://timeguy.com/cradek-files/cnc/lathe/DSCN6292.JPG
[16:58:51] <cradek> heh here's the "isolator board" on my lathe
[16:58:59] <cradek> I'll sell you the plans for $75
[16:59:18] <cradek> from
http://timeguy.com/cradek/cnc/lathe
[17:00:41] <cradek> sucky part now is that to use the drawbar you have to take off the spindle encoder:
http://timeguy.com/cradek-files/cnc/lathe/DSCN6300.JPG
[17:01:40] <CaptHindsight> http://linuxgizmos.com/35-dollar-quad-core-hacker-sbc-offers-rpi-like-expansion/
[17:04:12] -!- dgarr has quit [Quit: Leaving.]
[17:04:15] <kwallace> The problem, for me at least, with the Pi and Arduino format is not enough I/O pins. I rather like the Due though:
http://arduino.cc/en/Main/ArduinoBoardDue
[17:06:37] <bjmorel_work> Ya, I want to do an encoder directly on the spindle of my mill, but with the MT3 spindle I need the drawbar all the time. I think I'm going to try to fab up an encoder disk like people have done on the 7x lathes.
[17:06:48] -!- sliptoni` has quit [Remote host closed the connection]
[17:08:11] <archivist> I mounted one on the back of a pulley (taper lock type) on one of my spindles
[17:09:55] -!- rob_h has quit [Ping timeout: 264 seconds]
[17:15:04] <kwallace> I have about a half inch space between the current belt pulley and the bearing housing. The plan is to add a steel disk to the back of the pulley with gear like teeth and Allegro gear sensors. The problems are to come up with a pcb to mount the sensors, then to get the pulses to the PC through a single bit I/O, or come up with a better I/O.
[17:15:37] <bjmorel_work> I think I'm going to go the treadmill motor route w/ the KBIC controller. I should be able to eliminate the two speed belt drive and replace it with a small timing belt drive.
[17:15:51] <bjmorel_work> Might have the room to add the encoder disk right on the spindle.
[17:19:06] -!- amiri has quit [Ping timeout: 256 seconds]
[17:37:10] <kwallace> In case anyone might be interested, I made some machinable wax yesterday using ice cream buckets (#2, HDPE) and candles:
http://wallacecompany.com/tmp/IMG_8432-1a.jpg . It was easy to make and seems to work:
http://wallacecompany.com/tmp/IMG_8427-1a.jpg
[17:37:35] -!- md-2 has quit [Quit: Leaving...]
[17:42:43] -!- nofxx_ has quit [Changing host]
[17:53:28] -!- Nick_name_ has quit [Ping timeout: 265 seconds]
[17:57:20] <skunkworks> kwallace, How is the mill interface coming along?
[18:04:31] <kwallace> skunkworks, I couldn't say, but I'm starting to look for the next thing to do.
[18:05:25] -!- sliptoni` has quit [Remote host closed the connection]
[18:05:26] -!- txp has quit [Quit: Leaving]
[18:08:29] -!- kme [kme!b8ab6a07@gateway/web/freenode/ip.184.171.106.7] has joined #linuxcnc-devel
[18:09:35] -!- rob_h [rob_h!~robh@94.11.19.170] has joined #linuxcnc-devel
[18:10:07] -!- sumpfralle has quit [Ping timeout: 252 seconds]
[18:11:17] -!- karavanjo has quit [Ping timeout: 240 seconds]
[18:13:27] <skunkworks> this is random...
https://code.google.com/p/dxf2gcode/source/browse/trunk/source/tooltable/tables/lathe-cradek.tbl?r=241
[18:17:07] <kme> is anyone watching the PocketNC development?
http://www.pocketnc.com/products/
[18:33:16] -!- PCW [PCW!~chatzilla@99.88.10.65] has joined #linuxcnc-devel
[18:38:15] toudi_ is now known as micges
[18:39:30] -!- kwallace [kwallace!~kwallace@smb-54.sonnet.com] has parted #linuxcnc-devel
[18:43:13] -!- leptonix has quit [Remote host closed the connection]
[18:44:59] -!- sliptonic has quit [Remote host closed the connection]
[18:49:06] <archivist> putting two steppers in parallel is somewhat silly
[18:53:13] -!- tmcw has quit []
[18:58:53] -!- kwallace [kwallace!~kwallace@smb-54.sonnet.com] has joined #linuxcnc-devel
[19:02:42] <cradek> skunkworks: weird
[19:04:34] -!- erve has quit [Remote host closed the connection]
[19:07:28] -!- jasen has quit [Quit: Page closed]
[19:09:13] <kme> yeah I couldn't think of a good reason to do that -
[19:12:46] <kme> worm drives or anti-backlash spur gears may have been a better choice
[19:15:02] <kme> most industrial rotary tables are direct drive I believe -
[19:20:05] -!- karavanjo has quit [Ping timeout: 244 seconds]
[19:25:31] amnesic is now known as amnesic_away
[19:27:41] -!- f1oat [f1oat!~f1oat@AMontsouris-553-1-46-67.w92-151.abo.wanadoo.fr] has joined #linuxcnc-devel
[19:41:34] -!- skorasaurus has quit [Ping timeout: 244 seconds]
[19:47:00] <kwallace> The steppers could be adjustable such that you can loosen the mount on one stepper and rotate it to take out any backlash then tighten. From then on, there will be a preload. During start up, one stepper would need to be run against the other to restore the preload. Just a guess.
[19:49:28] -!- grummund has quit [Ping timeout: 255 seconds]
[19:56:52] -!- FinboySlick has quit [Quit: Leaving.]
[19:59:50] <PCW> kwallace: if you are running out of I//O pins on FPGA config I would _not_ move the encoder
[19:59:51] <PCW> elsewhere. I would use the FPGA encoder interface and use serial for digital I/O expansion
[20:02:02] -!- sliptonic has quit [Remote host closed the connection]
[20:02:57] <PCW> (sserial/modbus/SPI/muxed pins whatever)
[20:06:14] -!- b_b has quit [Remote host closed the connection]
[20:06:52] <kwallace> PCW, I have started looking at Smart Serial, but one application is to have the spindle encoder counter reside with the sensors on the spindle. The 7i73 has an encoder, but I need something about the size of an RJ-45 connector.
[20:22:10] -!- Lasper_ has quit [Client Quit]
[20:33:39] -!- kwallace2 [kwallace2!~kwallace@smb-54.sonnet.com] has joined #linuxcnc-devel
[20:33:42] <PCW> There are major tradeoffs doing this
[20:34:17] <PCW> if the encoder is used for anything other than a speed sensor
[20:34:47] <PCW> if its for real time feedback, serial is tough
[20:36:28] <PCW> and assuming you want synchronous readings from linuxcnc you still need 2 wires: request and data
[20:38:05] -!- sumpfralle has quit [Ping timeout: 260 seconds]
[20:47:09] -!- skunkworks has quit [Read error: Connection reset by peer]
[20:51:12] -!- anth0ny_ has quit [Quit: anth0ny_]
[20:59:25] -!- anth0ny_ has quit [Client Quit]
[21:02:58] -!- chillly has quit [Quit: Ex-Chat]
[21:05:27] sliptoni` is now known as sliptonic
[21:12:23] <kwallace2> PCW, I would need the encoder for rigid tapping. The number of wires isn't a problem.
[21:13:39] <PCW> well serial will be a problem because you either have to request the data and wait for it or always be 1 cycle late
[21:14:02] <PCW> neither of which a great for real time
[21:14:20] <PCW> are great
[21:14:44] <kwallace2> How about Ethernet?
[21:14:52] <PCW> same issue
[21:15:23] -!- anth0ny_ has quit [Quit: anth0ny_]
[21:16:03] <kwallace2> Okay, back to the drawing board, thank you for your help.
[21:16:27] <PCW> now with fast serial or Ethernet you may not have to wait very long so at a 1 KHz sample rate that may be acceptable
[21:19:58] <PCW> at say 10 MBits/s a RS422 link with request and data returned might be OK, only taking a few usec (assuming say a Cortex M3 or something decent at the remote end)
[21:21:56] <kwallace2> The normal servo rate is 1kHz. If I can keep that, I should be in good shape, I think.
[21:30:23] -!- skorasaurus has quit [Ping timeout: 258 seconds]
[21:31:33] -!- kme [kme!b8ab6a07@gateway/web/freenode/ip.184.171.106.7] has parted #linuxcnc-devel
[21:36:49] -!- ejb has quit [Quit: ZZZzzz…]
[21:39:47] <PCW> Is this just for wiring ease?, seems like quite a project to save a few wires
[21:44:40] -!- spatialbrew has quit [Quit: http://quassel-irc.org - Chat comfortably. Anywhere.]
[21:47:45] -!- Loetmichel has quit []
[21:50:11] -!- PetefromTn_ has quit [Quit: I'm Outta here!!]
[21:51:25] <kwallace2> PCW, not really. I want to add a spindle encoder, but try to stay within the requirements of the current hardware. I can't, so I'm looking at alternatives. I think I really need to nail down what I want and what I have.
[21:53:35] <PCW> Like I said If you are making any changes in the breakout I would let real time stuff have priority and use serial for non real time
[21:55:07] <PCW> if you have stepgens, muxing the stepgens is a possibility (drops 4 axis from 8 pins to 5)
[21:56:57] -!- sumpfralle has quit [Ping timeout: 260 seconds]
[21:59:48] -!- sliptonic has quit [Remote host closed the connection]
[22:00:41] -!- chillly has quit [Quit: Ex-Chat]
[22:00:59] -!- sliptonic has quit [Remote host closed the connection]
[22:10:48] -!- Thetawaves has quit [Quit: This computer has gone to sleep]
[22:13:57] -!- gene78 has quit [Remote host closed the connection]
[22:16:16] -!- FreezingCold has quit [Ping timeout: 244 seconds]
[22:21:18] -!- motioncontrol has quit [Quit: Sto andando via]
[22:22:56] -!- [cube] has quit [Ping timeout: 250 seconds]
[22:25:27] -!- Deejay has quit [Quit: bye]
[22:26:47] -!- skunkworks [skunkworks!~chatzilla@str-broadband-ccmts-ws-26.dsl.airstreamcomm.net] has joined #linuxcnc-devel
[22:30:12] -!- BellinganRoy has quit [Quit: Konversation terminated!]
[22:35:44] -!- skorasaurus has quit [Ping timeout: 265 seconds]
[22:39:00] -!- Miner_48er has quit [Quit: Leaving]
[22:41:49] -!- archivist_herron has quit [Ping timeout: 255 seconds]
[22:47:16] -!- karavanjo has quit [Ping timeout: 244 seconds]
[22:51:02] -!- andypugh [andypugh!~andy2@cpc14-basl11-2-0-cust1010.20-1.cable.virginm.net] has joined #linuxcnc-devel
[22:55:00] <PCW> kwallace2: I guess if you had fast hardware/uproc the uproc could send absolute position at a high rate (say 2 byte position 1 byte CRC) at 10 mbits/sec
[22:55:01] <PCW> with maybe a 3 usec gap so 166 KHz update rate (the position code could have a reserved number for unknown pos (untill index hit))
[22:56:30] <PCW> thats no worse Jitter than normal for PCs
[22:56:42] -!- jvrousseau has quit [Quit: (null)]
[22:56:54] <PCW> (and only 1 wire)
[22:59:26] <PCW> you could also encode the absolute encoder position as a frequency and measure this
[22:59:56] <PCW> (better noise immunity than serial)
[23:08:21] amnesic_away is now known as amnesic
[23:16:09] -!- pouncehug has quit [Ping timeout: 250 seconds]
[23:17:11] <kwallace2> PCW, I'm sorry, I should not have said anything before doing my homework. Please don't fret too much on this.
[23:17:22] -!- f1oat has quit [Ping timeout: 255 seconds]
[23:30:57] -!- acdha has quit [Ping timeout: 272 seconds]
[23:41:05] -!- fran_becu_ has quit [Remote host closed the connection]
[23:46:56] -!- ve7it [ve7it!~LawrenceG@S01060014d19d0b68.pk.shawcable.net] has joined #linuxcnc-devel
[23:57:35] -!- mhaberler has quit [Quit: mhaberler]
