#linuxcnc-devel | Logs for 2014-06-10

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[00:29:15] <cradek> I didn't think redis ever did anything...? someone copied it wholesale into our tree and made it sort of build, and then removed it because everyone agreed doing that is a terrible idea, and then that was the last I heard of it
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[00:37:15] <cradek> like andy, I was also unhappy that MK gave our major changes to users without (apparently) suitable release notes or instructions, and it reflected badly on linuxcnc
[00:37:33] <cradek> that's bad for EVERYONE, not just our feelings
[00:37:54] <cradek> (but I'm not losing sleep over it)
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[08:14:21] <zq> huh
[08:14:25] <zq> what do you guys use redis for?
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[13:27:01] <skunkworks> jepler, http://www.newegg.com/Product/Product.aspx?Item=N82E16816132016&cm_re=8_bay-_-16-132-016-_-Product
[13:27:22] <skunkworks> (bought a little better esata board though..)
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[13:46:18] <jepler> skunkworks: something specific is bad about the bundled one?
[13:46:32] <jepler> I see it's just 1x, is that enough bandwidth for 8 disks?
[13:47:24] <skunkworks> I remember doing some testing - but I don't remember how much faster a decent pcie card was..
[13:50:26] <skunkworks> substantial... iirc
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[14:29:33] <seb_kuzminsky> skunkworks_: thanks for the not-a-bug report!
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[14:37:49] <skunkworks_> I think chris/jeff fixed a few little ones...
[14:39:04] <skunkworks_> ja4 though needs some fixes.. We tried to run that on the K&T and I don't remember the main issues..
[14:39:40] <cradek> seems like it freaks out in various ways if you have nonconsecutive axes
[14:39:50] <cradek> ... like lathes do
[14:39:57] <cradek> it's not an unusual setup
[14:40:24] <cradek> looked to me like none of motion knows which axes are supposed to be enabled, which seems like a huge problem
[14:40:54] <skunkworks_> (K&T has xyza)
[14:41:31] <skunkworks_> ahhh
[14:41:33] <skunkworks_> ahhh
[14:41:37] <skunkworks_> (K&T has xyzb)
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[14:50:18] <skunkworks_> jepler: it takes about 10 seconds to copy a 1gb file from the raid to a internal sata hard drive..
[14:50:29] <skunkworks_> a little less..
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[15:12:59] <skunkworks_> (8 1.5tb drives - raid 5)
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[15:37:00] <KGB-linuxcnc> 03Chris Radek 05cradek/rapid-override 1863c9b 06linuxcnc 10src/emc/usr_intf/halui.cc Fix halui's rapid override increase and decrease pins * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=1863c9b
[15:37:00] <KGB-linuxcnc> 03Chris Radek 05cradek/rapid-override 72a15fb 06linuxcnc 10src/emc/usr_intf/halui.cc As Michael G says, this config option is unneeded. * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=72a15fb
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[16:13:32] <KGB-linuxcnc> 03Chris Radek 05cradek/rapid-override 2f280d5 06linuxcnc 10docs/src/common/python-interface.txt 10share/axis/tcl/axis.tcl 10src/emc/usr_intf/axis/extensions/emcmodule.cc 10src/emc/usr_intf/axis/scripts/axis.py Add rapid override support to AXIS * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=2f280d5
[16:13:32] <KGB-linuxcnc> 03Chris Radek 05cradek/rapid-override 7b5d872 06linuxcnc 10configs/sim/axis/axis.ini Fix axis.ini to be consistent about maxvel * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=7b5d872
[16:14:00] <seb_kuzminsky> hawww yea
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[16:23:30] <skunkworks_> nice!
[16:24:20] <cradek> now for the real question - is it a bugfix?
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[16:29:24] <skunkworks_> well - the stuff that started this shitstorm was only in 2.6~pre and master - right?
[16:30:10] <seb_kuzminsky> skunkworks_: yeah
[16:30:18] <cradek> yes the original change that set this off was after 2.5
[16:31:22] <seb_kuzminsky> skunkworks_: have you taken the new RO knob for a ride? any feedback for our QA department? ;-)
[16:31:43] <skunkworks_> building now...
[16:32:00] <seb_kuzminsky> ossom
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[16:36:03] <skunkworks_> I feel good that the threading bug was the only new problem found in the new tp...
[16:36:05] <skunkworks_> :)
[16:36:42] <skunkworks_> (so far..)
[16:37:00] <skunkworks_> seb_kuzminsky: you should have heard the K&T.. (or felt it) poor old thing...
[16:37:13] <skunkworks_> I think dad cringed the whole time....
[16:37:44] <skunkworks_> and not just because jeff was in front of it...
[16:37:46] <cradek> the poor rattley thing
[16:37:50] <skunkworks_> ;)
[16:37:59] <cradek> you should grind the whatever some more and fix it
[16:38:26] <skunkworks_> assuming that is it.. (it could be that linear spline...) but we would have to look
[16:38:39] <cradek> what did you measure? .0003?
[16:38:42] <skunkworks_> yes
[16:38:48] <cradek> eh, or you could just leave it
[16:38:57] <skunkworks_> we have so far...
[16:40:07] <skunkworks_> you could actually push the table back and forth that much...
[16:40:15] <skunkworks_> (or a little less)
[16:40:22] <cradek> huh, that's surprising
[16:41:15] <skunkworks_> the move pretty easy any way... (all roller ways and 3tpi..)
[16:41:33] <skunkworks_> so it could be anything back to the servo...
[16:41:54] <skunkworks_> *any slack
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[16:43:33] <kwallace2> Three tenths slack doesn't sound like a lot.
[16:44:31] <cradek> it's not, but you can sure hear and feel it
[16:44:45] <kwallace2> Oops, doesn't seem like a lot, but sounds like it.
[16:45:05] <cradek> heh, I knew what you meant
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[16:47:20] <kwallace2> Tracking the source should not require much magic, just time. My new Bridgeport screws have .003" slack. I ordered the wrong kind. They are not preloaded.
[16:48:01] <cradek> ah, darnit
[16:48:09] <skunkworks_> cradek:
[16:48:12] <skunkworks_> skunkworks@skunkworks-Studio-XPS-1645:~/linuxcnc-rapidov$ git checkout origin/cradek/rapid-override
[16:48:13] <skunkworks_> warning: refname 'origin/cradek/rapid-override' is ambiguous.
[16:48:15] <skunkworks_> Already on 'origin/cradek/rapid-override'
[16:48:16] <skunkworks_> Your branch is up-to-date with 'master'.
[16:48:18] <skunkworks_> skunkworks@skunkworks-Studio-XPS-1645:~/linuxcnc-rapidov$ git describe
[16:48:19] <skunkworks_> v2.6.0-pre3-79-ge9b0eab
[16:48:21] <skunkworks_> what did I do wrong?
[16:48:42] <seb_kuzminsky> you generally shouldn't checkout anything that begins with "origin/"
[16:48:52] <seb_kuzminsky> try "git checkout cradek/rapid-override"
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[16:49:31] <skunkworks_> ok
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[16:50:03] <skunkworks_> just when I think I can wing it with git..
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[16:50:29] <skunkworks_> kwallace2: was it hard to tune?
[16:51:54] <skunkworks_> .0003" doesn't seem to cause an issue.
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[17:00:04] <kwallace2> skunkworks_ , it depends, using only a linear scale for feedback was not tunable. Normally, I use an encoder on the end of the screw which is fine for tuning, but not the best for dead-n??s position. In short, IMHO, any slack is evil. I may try to install over-sized balls for preload, or try to get double nuts that match my screws. I just hate to give that manufacturer any more money.
[17:00:47] <cradek> I've had decent luck with oversized balls, but it's very hard to get the right size in one (or a few) tries
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[17:01:03] <cradek> you might feel like you could calculate it...
[17:01:43] <skunkworks_> RO seems to work here.. halui pins seem to also Yay
[17:02:24] <cradek> did you try all the halui methods? the one I had wrong was one I didn't test.
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[18:01:27] <skunkworks_> cradek: is there a reason why you don
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[18:02:00] <skunkworks_> don't have a 'direct-value' option?
[18:02:09] <skunkworks_> for rapid override?
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[18:02:40] <skunkworks_> spindle and feed over ride both do
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[18:07:41] <skunkworks_> also........ You removed the option for rapid override in the ini file.. I could see someone connecting the rapid and feed override to 1 mpg.. (moving both at once) but that doesn't work if the max isn't the same.. (just a thought)
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[18:23:49] <seb_kuzminsky> dont both overrides go from 0.0 to 1.0?
[18:24:19] <skunkworks> feed override can go as high as you set it in the ini.. (1.1, 2.0... whatever)
[18:24:35] <seb_kuzminsky> hrm, right...
[18:24:41] <skunkworks> (you might want to tweek the feed higher than is programed)
[18:25:36] <micges> skunkworks: I think if you connect both overrides to one mpg it will work like in 2.5
[18:25:51] <skunkworks> right.. (some may like that...)
[18:26:26] <skunkworks> (I use mv exclusivly...)
[18:26:43] <micges> on half of my lcnc machines it makes sense, on second half not
[18:26:59] <micges> ha I never use mv :)
[18:27:19] <skunkworks> once you use MV you never go back.. :)
[18:28:21] <micges> hehe
[18:29:14] <micges> on all my lasers I control velocity with fo and I disable FO on rapid moves
[18:29:54] <skunkworks> so the current changes - you like
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[18:30:09] <micges> on all mills fo always works and gcode for disabling it is removed
[18:30:24] <micges> also on G0
[18:33:17] <micges> I don't have any harsh feelings like Mark to any change in major release, I just adapt if I need to upgrade
[18:33:50] <micges> but I understand he want to have choose option
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[18:36:32] <skunkworks> micges, have you talked to rob about jerk limiting?
[18:37:24] <micges> yes, we're waiting for me to finish it and test it ;)
[18:38:00] <skunkworks> neat!
[18:38:29] <micges> (which is digging throught 100k lines diff of hard style coding)
[18:39:14] <micges> (I've reduced to 20k and I'm in half way)
[18:40:05] <micges> skunkworks: what do you think about switchable planners in hal? like kinematics?
[18:40:21] <skunkworks> I think that would be awesome...
[18:40:32] <skunkworks> I thought that was discussed off and on
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[18:41:31] <micges> we could have 3 planners atm: tp, cba_tp, jerk_tp
[18:42:42] <skunkworks> the cba_tp actually can be set to the original behavior.. (parabolic for all blends)
[18:43:24] <skunkworks> from my testing - I think he has fixed all the small bugs in the current tp (small acceleration violations)
[18:43:30] <seb_kuzminsky> cradek: you added a FIELD in halui called ro_direct_value, but no pin is created for it and it is never used
[18:44:10] <seb_kuzminsky> i've an update to halui.1, but i'll hold off until you say if you want .direct-value or not
[18:51:21] <micges> skunkworks: yeah, my point is when bug will be find out on 24/7 machine, one need to easy backup option, and changing one line in hal file is acceptable
[18:51:53] <skunkworks> micges, sure. makes sense.
[18:52:27] <skunkworks> I am sure it would be nice to switch back to the proven planner
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[18:53:15] <skunkworks> micges, have you run the current planner with scurve on actual hardware?
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[18:54:38] <micges> yes, only lines were supported then (2 weeks ago) but worked very good
[18:55:23] <skunkworks> in xyz?
[18:55:26] <micges> easy 1000mm/s2 and 10m/min on 2Nm stepper motors
[18:56:24] <micges> yes
[18:58:42] <micges> half of those acc was possible on old tp
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[19:05:12] <skunkworks> neat
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[19:24:37] <skunkworks> micges, do you have a test branch? I could run it through the paces on a bunch of programs...
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[19:26:39] <micges> still not ready, many AFK things hit me last week
[19:26:56] <micges> I'll surely let you know
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[19:35:36] <cradek> oh I totally want fully symmetric halui pins and functionality
[19:35:47] <cradek> anything that FO has and RO does not have is an oversight
[19:36:08] * cradek <- hack
[19:36:21] <skunkworks> shame shame shame
[19:36:33] <skunkworks> ;)
[19:38:51] <cradek> I'll add the missing direct-value stuff
[19:39:51] <seb_kuzminsky> ok, i'll update the manpage
[19:40:06] <skunkworks> ok, I'll test
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[19:47:38] <cradek> huh, direct-value doesn't work how I always thought it did
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[19:47:57] <skunkworks> it is odd.. (testing one of the other axis..)
[19:47:58] <cradek> I thought there was a float, and if you poked direct value, it sent the value of that float
[19:48:12] <cradek> I guess I don't understand what it's supposed to be for
[19:48:14] <skunkworks> you have to set the scale... then it works as expected
[19:48:35] <skunkworks> *testing one of the other overides
[19:49:00] <skunkworks> (because count isn't a floating point)
[19:49:16] <skunkworks> if I understand it right...
[19:49:27] <seb_kuzminsky> looks like with direct-value on, the actual value of .counts is used, instead of the change in .counts
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[19:49:39] <skunkworks> right
[19:49:48] <seb_kuzminsky> seems useless, because how can you control where .counts is?
[19:49:50] <skunkworks> but it is odd because you cannot use desimals..
[19:49:51] <cradek> that's weird
[19:49:58] <skunkworks> decimals
[19:50:01] <cradek> well in halui it starts at zero
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[19:50:18] <seb_kuzminsky> maybe it's not useless, i guess all sane encoders start at 0 +- epsilon
[19:50:39] <seb_kuzminsky> skunkworks: you can manufacture decimals with .scale
[19:50:51] <skunkworks> right\
[19:51:06] <cradek> I bet people using direct-value have something that is not an encoder hooked to .counts
[19:51:54] <seb_kuzminsky> pot?
[19:51:55] <cradek> well I would used a float input instead, and loaded it on a rising edge of a bit. shrug.
[19:52:13] <skunkworks> that would be my understanding.. something absolute
[19:52:21] <cradek> it's too late to do something else
[19:53:05] <skunkworks> if you set the scale to .01 then 0 to 100 is the scale
[19:53:12] <KGB-linuxcnc> 03Chris Radek 05cradek/rapid-override a7b6d50 06linuxcnc 10src/emc/usr_intf/halui.cc Support rapid override "direct" input in halui, for symmetry * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=a7b6d50
[19:55:25] <KGB-linuxcnc> 03Sebastian Kuzminsky 05cradek/rapid-override b04f21d 06linuxcnc 10docs/man/man1/halui.1 halui: add Rapid Override pins to manpage * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=b04f21d
[19:55:30] <seb_kuzminsky> http://wheningit.tumblr.com/post/32809731907/when-me-and-a-coworker-are-working-in-the-same-branch
[19:56:05] <cradek> I'm the cute one
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[19:59:44] <cradek> looks like andy has now decided to teach a man to fish
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[21:34:58] <skunkworks_> seems like everything works...
[21:35:27] <cradek> yay, thank you
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[21:46:18] <seb_kuzminsky> since we're still in 2.6~pre, go ahead and push it to 2.6 please
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[21:52:18] <KGB-linuxcnc> 05cradek/rapid-override b04f21d 06linuxcnc 04. branch deleted * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=b04f21d
[21:52:49] <KGB-linuxcnc> 03Chris Radek 052.6 d207ebc 06linuxcnc 10(10 files in 4 dirs) New message and stat entry for rapid override * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=d207ebc
[21:52:49] <KGB-linuxcnc> 03Chris Radek 052.6 a13d7b9 06linuxcnc 10src/emc/usr_intf/halui.cc HALUI: support setting rapid override in the various ways * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=a13d7b9
[21:52:49] <KGB-linuxcnc> 03Chris Radek 052.6 d057228 06linuxcnc 10src/emc/kinematics/tp.c 10src/emc/motion/control.c Honor rapid override * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=d057228
[21:52:51] <KGB-linuxcnc> 03Chris Radek 052.6 e2bc8eb 06linuxcnc 10src/emc/usr_intf/halui.cc Fix halui's rapid override increase and decrease pins * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=e2bc8eb
[21:52:55] <KGB-linuxcnc> 03Chris Radek 052.6 a609874 06linuxcnc 10src/emc/usr_intf/halui.cc As Michael G says, this config option is unneeded. * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=a609874
[21:52:59] <KGB-linuxcnc> 03Chris Radek 052.6 b54d7b0 06linuxcnc 10docs/src/common/python-interface.txt 10share/axis/tcl/axis.tcl 10src/emc/usr_intf/axis/extensions/emcmodule.cc 10src/emc/usr_intf/axis/scripts/axis.py Add rapid override support to AXIS * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=b54d7b0
[21:53:03] <KGB-linuxcnc> 03Chris Radek 052.6 9b64c07 06linuxcnc 10configs/sim/axis/axis.ini Fix axis.ini to be consistent about maxvel * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=9b64c07
[21:53:07] <KGB-linuxcnc> 03Chris Radek 052.6 b986a56 06linuxcnc 10src/emc/usr_intf/halui.cc Support rapid override "direct" input in halui, for symmetry * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=b986a56
[21:53:11] <KGB-linuxcnc> 03Sebastian Kuzminsky 052.6 27f0bdd 06linuxcnc 10docs/man/man1/halui.1 halui: add Rapid Override pins to manpage * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=27f0bdd
[21:54:49] <cradek> yay
[21:55:44] <seb_kuzminsky> weee
[21:55:45] <seb_kuzminsky> thanks
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[22:32:31] <andypugh> You know, a _hint_ of gratitude for the aprproximately 50 replies I have written wouldn’t go amiss.
[22:35:24] <seb_kuzminsky> this is not new behavior on "a k"'s part unfortunately
[22:35:43] <andypugh> No, but this seems worse than normal.
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[22:36:40] <seb_kuzminsky> jerks and idiots are everywhere
[22:36:50] <seb_kuzminsky> you've gone way above the call of duty here
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[22:41:00] <seb_kuzminsky> aram's been hanging around for years and i've never seen him express any gratitude or motivation to do the reading & research we've been pointing him at
[22:46:14] <andypugh> Bridges burned.
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[22:48:41] <seb_kuzminsky> http://www.catb.org/jargon/html/P/plonk.html
[22:49:34] <andypugh> Yeah, I used to hang out on Usenet.
[22:51:25] <andypugh> I wonder if there is any reason not to use ordinary wire rope from the DIY shop as a bowden cable?
[22:51:44] <andypugh> I need a 1/8” Bowden for the friction drive control on the Ner-a-Car.
[22:52:04] <mozmck> heh! great comment to steve at the end andy!
[22:54:41] <seb_kuzminsky> that thread reminds me of one of my first ever attempts at helping someone get hostmot2 working
[22:54:52] <mozmck> I would think wire rope would work - does it just pull?
[22:55:05] <seb_kuzminsky> i still get twitches of uncomfortable feelings when i remember it
[22:55:10] <seb_kuzminsky> http://thread.gmane.org/gmane.linux.distributions.emc.user/11071
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[22:57:55] <andypugh> Well, so far that guy is answering all the questions he is being asked. Aram answers questions nobody asked.
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[22:58:51] <seb_kuzminsky> Dr. Seb prescribes andypugh 6 hours of garage therapy
[22:59:11] <seb_kuzminsky> see y'all later
[22:59:59] <andypugh> So far this evening I have sanded and primered the Ner-a-Car handlebars, machined a 50mm deep aluminium profile for a friends toy gun, and made some brackets for someone else’s motorbike.
[23:00:10] <andypugh> So I might need more than 6 hours.
[23:01:19] <Tom_itx> how's the car coming along?
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[23:02:38] <andypugh> Not badly.
[23:02:50] <andypugh> I need to find some parts, or make them.
[23:03:01] <andypugh> A fuel tap would be good, but it’s a funny one.
[23:03:37] <andypugh> If you look at the pictures at the bottom of http://www.geutskens.eu/neracar/7-fuel_tank1.htm you can see that it’s a strange solder-on valve.
[23:05:17] <Tom_itx> you gonna salvage the tank?
[23:05:29] <andypugh> That’s not mine.
[23:05:36] <andypugh> Mine is _worse_
[23:05:37] <Tom_itx> ahh
[23:05:51] <andypugh> Mine has no valve. And big holes in it.
[23:05:59] <Tom_itx> get a biker to hammer one out for ya
[23:06:22] <andypugh> I was going to hammer out my own.
[23:06:42] <andypugh> (well, hammer out patches of the right shape
[23:07:11] <Tom_itx> i wonder if you could make a shape and use a hydropress for the halves
[23:07:38] <andypugh> The mould would need a huge lump of metal.
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[23:08:04] <Tom_itx> would it need to be solid?
[23:08:06] <andypugh> It’s 8” x 12”. Too big for my lathe.
[23:08:08] <Tom_itx> what about wood?
[23:08:13] <Tom_itx> oh
[23:09:39] <andypugh> I was going to machine the right shape of groove into a segment of something solid using the boring head on my mill. Then hammer the metal into the grooves with a bolster.
[23:09:58] <Tom_itx> i see the tank now that i made it to the top of the page
[23:11:00] <andypugh> Maybe making a pair of profiled rollers to manufacture a whole new centre section is a better plan?
[23:11:08] <andypugh> The end-caps seem OK.
[23:11:27] <Tom_itx> that was a thought i had as well
[23:13:01] <andypugh> Otherwise making it fuel-tight is likely to be jolly hard.
[23:13:21] <Tom_itx> i wonder if a bulk freon bottle would be the right size
[23:13:40] <Tom_itx> find a couple and halve them together
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[23:14:38] <andypugh> This is meant to be a restoration, so anything I make ought to be identical to original.
[23:15:24] <Tom_itx> i know
[23:15:41] <Tom_itx> they just looked to be about the same size
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[23:17:16] <andypugh> I own one of these: http://www.axminster.co.uk/750mm-sheet-metal-worker
[23:17:44] <andypugh> But I don’t fancy making new rolls for it for this one job.
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[23:18:13] <Tom_itx> we made a set for the company next door that does roll forming once
[23:18:23] <Tom_itx> a set of 5 rollers iirc
[23:18:58] <Tom_itx> progressive rolls
[23:21:16] <andypugh> (Off topic) Ever seen a Sendzemir mill? http://www.redex-group.com/sendzimir.html
[23:22:08] <Tom_itx> no, can't say i have
[23:22:18] <andypugh> You get much higher rolling pressure with smaller rolls, but they bend. SO you support them with two more rollers. Then support those with three rollers, and then those with 4 rollers..
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[23:28:30] <andypugh> Right, sleep time.
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[23:28:56] <dgarr> andypugh: et al -- a first cut at a patch (master) for separate tool touch off button
[23:28:57] <dgarr> http://www.panix.com/~dgarrett/stuff/0001-axis-separate-buttons-for-system-tool-touchoff.patch
[23:29:11] <dgarr> just missed him:-/
[23:29:11] <seb_kuzminsky> wow, that was quick!
[23:29:43] <seb_kuzminsky> oh, dgarr, since you're in a committish mood...
[23:30:08] <seb_kuzminsky> i noticed that in the config picker, some of the READMEs are out of date after your awesome reorg
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[23:39:45] <cradek> oh awesome
[23:41:57] <cradek> title=_("Tool Touch Off (Tool No:%s)"%s.tool_in_spindle),
[23:41:59] <cradek> this is a nice touch
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[23:44:14] <cradek> hm, I'm not getting the button
[23:45:33] <cradek> oh yes I am
[23:49:48] <cradek> I think you should go whole hog and remove the T option from the old dialog
[23:52:56] <cradek> I wonder if it's a bug (that also existed before this change) that we use s.tool_in_spindle without doing s.poll() first