Snuggly's Plasma Build

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8 years 23 hours ago #119733 by snugglylovemuffin
Having serious problems with endstops. If I comment the pins out I can't get the machine off e-stop. If I leave the pins on, I get pin errors and can't move the machine... Wtf?

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8 years 23 hours ago - 8 years 22 hours ago #119736 by Grotius
Replied by Grotius on topic Snuggly's Plasma Build
Yo men,

Your switch offset in your ini is problably at zero. (home offset value... use -5mm for example and try it.)

Try one of this :
Code:
#HOME_LATCH_VEL = -1 #HOME_SEARCH_VEL = -20 #HOME_FINAL_VEL = -1 #HOME_IGNORE_LIMITS = YES #HOME_OFFSET = -2 #HOME_SEQUENCE = -2 HOME_LATCH_VEL = 0 HOME_SEARCH_VEL = 0 HOME_FINAL_VEL = 0 HOME_IGNORE_LIMITS = YES HOME_OFFSET = 0 HOME_SEQUENCE = 0

So homing sequence -2 is mostly used for 2 motors on x axis together. (-2 is not -2mm... !!!! IT IS
A HOMING SEQUENCE.... not my favority solution. but is works.)
if you use -3 for y and -4 for z. It wil do this axis for axis homing procedure. Takes very long time.
Home sequence 0 = oke without homing.

So a good option when you are at production scale. To have multiple linuxcnc start desktop pictogram's.
One for homing and one for no_homing. The you are master dude.

To the programmers. The Homing procedure documentation is a mess, even Gmocappy struggles with this issue.
So i don't struggle with this, I made a c component for homing. And it is all solved.
Last edit: 8 years 22 hours ago by Grotius.
The following user(s) said Thank You: snugglylovemuffin

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8 years 22 hours ago #119738 by snugglylovemuffin
My apologies for double posting, I was on my tablet because my wireless network card doesn't play nice with Linux. Any suggestions for a new wifi dongle that will work properly?

I will change those offsets. Stay with me Grotius, if we can get this figured out I'll be happy to put my V2 plasma plans up on here for all to use (I'm not a fan of IP).

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8 years 22 hours ago #119739 by Grotius
Replied by Grotius on topic Snuggly's Plasma Build
Snuggly,

Stay with me Grotius


I think i would help you trough your progress. So would Rod do, So would Tommy do, So would PCW do, So would Andy do, so
would everyone do that i not have named. You are at the right forum.
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8 years 21 hours ago #119741 by snugglylovemuffin
I appreciate it man, this is clearly not my forte. I'm going to keep on plugging through the night so that I can start my test cuts by this weekend.

What does your work flow look like? I've tried using fusion360 and have gotten some advice, however inkscape doesn't seem to play nice with Axis. I'd like to know what you guys are doing to get from start to finish.

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8 years 18 hours ago #119747 by islander261
Replied by islander261 on topic Snuggly's Plasma Build
Inkscape, Sheetcam to LinuxCNC. I only cut full sheets so using Gcodetools is a PITA. If you are cutting single parts Gcodetools is part of Inkscape and works well for basic cutting. My configuration is based on the Gmoccapy UI. If you are not a skilled cnc machinist (know basic Gcode well) start with a very simple shape (square of known dimensions) and practice with Inkscape and Gcodetools until you get a good file that imports correctly to LinuxCNC.

Take the time to get your basic machine motion working correctly before trying to plasma cut, you will be miles ahead in the end.

John
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