#linuxcnc | Logs for 2018-12-07
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[05:46:54] <jthornton> morning
[05:47:38] <XXCoder> hey
[05:47:56] <XXCoder> wii u arrived today, come with 3 games as specified... and another game in wii u itself lol
[05:51:30] <jthornton> what is a wii?
[05:51:38] <XXCoder> wii u is a game console
[05:51:48] <XXCoder> by ninendo
[05:51:52] <jthornton> ah
[05:52:13] <jthornton> last game I played was Doom lol
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[06:00:50] <Tom_L> the wii is the one that makes you look stupid while playing it
[06:01:45] <XXCoder> wii was one of better consoles though they went brilliant and sold so many of em
[06:01:46] <Tom_L> i wonder how many screens have been broken by the controller from ppl throwing it
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[06:03:02] <XXCoder> not that many but yeah probably hundred?
[06:03:57] <weenerdog> good mernin
[06:06:37] <Tom_L> 25°F Hi 36
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[06:08:07] <jthornton> a tad warmer over here
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[09:33:32] <weenerdog> i be learn more smarter solidworks dain bramage lol
[09:35:02] <gregcnc> SW causes me to try to rotate screen shots of CAD on websites or in videos
[09:35:11] <weenerdog> lol
[09:35:37] <gregcnc> been driving CAD since '98 though
[09:37:27] <weenerdog> i been doing autocad since 11 for dos. its like the overweight girl that puts out easily. sw is more like the beautiful complex european girl who keeps you in the friendzone forever.
[09:38:33] <weenerdog> "you will never learn my secrets. only sven really knows me"
[09:38:45] <gregcnc> I took R12 maybe at the local college
[09:39:42] <gregcnc> a bit on Microstation which I preferred, then SW 98+ at a job
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[09:58:38] <huibuuh> hey
[09:58:49] <weenerdog> howdy
[09:58:59] <huibuuh> I have an issue with rehome, it seems to not work at all. someone knows what my issue could be?
[09:59:25] <huibuuh> I have to close the entire program and then the first time it works
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[10:43:39] <rmu> huibuuh: what is rehome
[10:46:18] <huibuuh> press home when I pressed it once already
[10:47:58] <gregcnc> what is the problem?
[10:48:33] <huibuuh> when i press "Home Axis" it wont go to zero
[10:48:41] <huibuuh> it will go to something like -1.2894
[10:49:03] <gregcnc> you have a work offset active
[10:49:29] <gregcnc> looka t the gcode list and read about G28
[10:49:30] <huibuuh> what is that?
[10:49:51] <gregcnc> did you touch off a work offset?
[10:50:05] <huibuuh> there is no G28 in my gcode
[10:50:20] <gregcnc> what are you trying to achieve with "home axis"
[10:50:46] <rmu> huibuuh: does the machine make the usual homing moves when you press home or is it just sitting there
[10:51:16] <gregcnc> I suspect he thinks home axis sends it to X 0.0, but that's not it's purpose
[10:51:28] <huibuuh> I want to set the machine to the start point with "home axis"
[10:51:55] <gregcnc> define start point
[10:52:48] <huibuuh> the 0,0,0 from the CAD
[10:52:58] <rmu> so is it moving or is it not
[10:53:03] <gregcnc> issue G0 X0. Y0. Z0.
[10:53:18] <huibuuh> yes it will go there
[10:53:19] <gregcnc> home axis is not for that
[10:53:35] <huibuuh> but I need to redefine it because I have to flip the part over to get the top done after the bottom
[10:53:59] <gregcnc> http://linuxcnc.org
[10:54:01] <huibuuh> and the wood has different thickness so I have to measure and adjust the Z after I flatten the surface
[10:54:25] <rmu> what has home to do with that
[10:54:52] <gregcnc> you need to set another work offset, not rehome the machine
[10:55:34] <gregcnc> homing calibrates the mechanics of the machine to the control software, so the control knows the machine's position
[10:56:12] <huibuuh> hmmm
[10:56:18] <gregcnc> after that everything is done by work offsets (coordinates systems)
[10:57:04] <huibuuh> so the work offsets are the diff between the machine home and the part home?
[10:57:08] <huibuuh> part 0,0,0
[10:57:10] <gregcnc> the only time you need to re home is if you power down the machine, crash, or stall steppers
[10:57:19] <gregcnc> correct
[10:57:39] <huibuuh> do I enter the work offsets in the MDI tab?
[10:58:40] <gregcnc> you can, otherwise touch off
[10:59:22] <huibuuh> okey, thank you very much
[10:59:30] <huibuuh> imma read that link you gave me and have another try
[10:59:42] <gregcnc> also http://linuxcnc.org
[11:00:42] <huibuuh> yeah, rtfm :D
[11:00:52] <gregcnc> yeah sometimes it helps
[11:01:27] <huibuuh> aight, imma go and redo my model (fucked that one up too :D) and then read the manual.
[11:01:29] <huibuuh> thank you
[11:01:30] <huibuuh> cya
[11:03:14] <rmu> rtfm is more efficient than guessing around, trial and error can be expensive with ruined stock and bits
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[11:09:31] <sensille> hm, i'm trying to find a good homing speed. based on possible overshoot and acceleration i can calculate a value, but even on much lower values the gantry audibly hits the side
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[11:16:11] <gregcnc> without numbers, it's not possible to say if the distance is adequate
[11:16:37] <sensille> 0.5mm, 400mm/s^2, 400mm/s
[11:16:49] <gregcnc> unless you expect to need every last micron of travel just move the switches away from the end stops
[11:17:45] <sensille> currently they're glued on, but still i'd like to understand why it doesn't work
[11:18:04] <sensille> maybe there are some latencies in the switch detection
[11:18:20] <sensille> or the switch itself behaves differently at higher speeds
[11:18:26] <sensille> or my calculation is off
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[11:19:56] <sensille> oh
[11:20:15] <sensille> i _meant_ to say 400mm/min
[11:20:29] <sensille> but that value is actually mm/s
[11:20:33] <sensille> that explains it
[11:20:49] <gregcnc> numbers don't lie
[11:21:13] <jdh> liers number.
[11:22:37] <sensille> even for velocity the speed is configured in mm/s. i don't know why i thought it would be mm/min for homing
[11:23:47] <sensille> perfect :)
[11:24:05] <sensille> so 20mm/s now for homing
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[11:24:44] <gregcnc> great
[11:25:37] <sensille> i'm a big fan of calculating instead of testing, so i was a bit disturbed ;)
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[13:14:54] <jdh> I'm a big fan of hitting start and hoping.
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[13:48:36] <sensille> Loetmichel: re runout: with the sorotec collet it's much much better. 0.02mm now
[14:04:46] <weenerdog> nice
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[16:29:53] <Deejay> gn8
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[18:26:01] <weenerdog> howdy
[18:29:33] <jthornton> hey
[18:31:15] <Roguish> jthornton: hey, what's up?
[18:32:53] <jthornton> not much winding down the day and trying to quess the proper syntax for pyqt aboutToQuit.connect() lol
[18:33:55] <skunkworks> jthornton: sounds like you're having fun :)
[18:34:25] <jthornton> yea programming a touch screen for the chicken coop lol
[18:35:09] <Roguish> has anyone machined Nitronic 60?
[18:35:24] <skunkworks> heh - that seems like overkill... But when you have a hammer...
[18:36:08] <jthornton> well it's more fun to have a 7" touch screen than a tiny little oled screen and if you can have the manual override buttons it's a plus
[18:36:20] <jthornton> never heard of that material
[18:36:41] <Roguish> fancy stainless.
[18:36:54] <Roguish> how about 4340?
[18:37:38] <jthornton> never messed with any of that either
[18:37:53] <Roguish> I just turned down some work to modify a couple of small parts. too risky.
[18:38:37] <Roguish> adding a couple of 1.5mm dowel holes, and some 2.3mm dowel holes.
[18:39:49] <Roguish> they only had 1 set of parts. no room for mess ups.
[18:40:05] <jthornton> bad plan lol to mess up the only parts
[18:40:43] <Roguish> my thoughts. parts bound for Disney Imagineering
[18:40:50] <Roguish> cool project....
[18:43:27] <Roguish> not as cool as chicken coops though.\
[18:43:34] <jthornton> lol
[18:44:11] <jthornton> well time to put on my sous chef hat and get the fish prepped for dinner
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