My Newb Plasma Table Attempted Build

So do I just go straight to adding plasmac?

phillc54 wrote:

Yeah, it is worth a try.

That got it working, thanks.

So I got plasmac up and running, etc. Cut a new test piece (2"x2" square, using the wizard in plasmac again) and guess what? SAME issue. I marked the piece with the measurements, it's getting about .030" off from one side to the other. This is using a regular desktop PC now (MUCH better latency, like in a different universe better!). I'm attaching the .zip for the whole machine this time. This is crazy.

Simulation of the cut is perfect, but when actually cut (or with the plasma powered down) it gets that step every time the wizard is used, and every time a cut is done from a file - like a part. Not only is this a fresh PC, but this is also a from scratch installation of master branch as well. This is only using the same config linuxcnc directory as the other machine used. All belts are good and tight, mechanically I've been going over the machine all week...it's good to go. And with Tommy's simple gcode square, it cuts a perfect square every time without the missing step.



Edit: I wrote 2.xxx" on the square, but it's 1.xxx".

tommylight wrote:

?????????
What the h.......
Did you try to do a round shape, not from the wizard, use inkscape, draw a circle, path>object to path, extensions>gcodetools>path to gcode, open in LinuxCNC.

I haven't forgotten about you asking me this. I didn't have Inkscape installed at the time. I've downloaded it today and tried it, but I need to set up the tool and whatnot. So now I need to learn another software on top of needing to learn linux lol. And with orders still not being cut.

I wonder if it's the preamble M codes throwing something off. When they are omitted it seems to cut just fine.

tommylight wrote:

I did post the complete code for a circle just after that post, so use that to test.
And you can thank me later for Inkscape, it is by far the easiest and quickest for doing "not to complicated" stuff.

Well so much for thanking you now for it then

It's been on my list (I think it would work great and easier/faster than Fusion 360 for lots of sign work), but I may need to move it up to the top on priority if it'll cut my files for customers that I have pending right now.

P.S.

Thanks!

tommylight wrote:

I did post the complete code for a circle just after that post, so use that to test.
And you can thank me later for Inkscape, it is by far the easiest and quickest for doing "not to complicated" stuff.

Quick question about this circle code...

What size circle is it (I can't tell from looking, I can convert it easily - need to make sure I have large enough space on material available)? Is it something like 50mm?

%
G21 (All units in mm)
F250
G00 X50.000000 Y25.000000
M3 S1
G02 X48.096988 Y15.432914 I-25.000000 J0.000000
G02 X42.677670 Y7.322330 I-23.096988 J9.567086
G02 X34.567086 Y1.903012 I-17.677670 J17.677670
G02 X25.000000 Y0.000000 I-9.567086 J23.096988
G02 X15.432914 Y1.903012 I0.000000 J25.000000
G02 X7.322330 Y7.322330 I9.567086 J23.096988
G02 X1.903012 Y15.432914 I17.677670 J17.677670
G02 X0.000000 Y25.000000 I23.096988 J9.567086
G02 X1.903012 Y34.567086 I25.000000 J-0.000000
G02 X7.322330 Y42.677670 I23.096988 J-9.567086
G02 X15.432914 Y48.096988 I17.677670 J-17.677670
G02 X25.000000 Y50.000000 I9.567086 J-23.096988
G02 X34.567086 Y48.096988 I-0.000000 J-25.000000
G02 X42.677670 Y42.677670 I-9.567086 J-23.096988
G02 X48.096988 Y34.567086 I-17.677670 J-17.677670
G02 X50.000000 Y25.000000 I-23.096988 J-9.567086
G01 X50.000000 Y25.000000
M5
G00 X0.0000 Y0.0000
%

tommylight wrote:

Yup 50mm, or 2 inch.

Not surprised with the result...and I cut #1 using sheetcam pp to generate code (I don't think sheetcam is the issue, it's something in the controller), #2 using the gcode you provided Tommy. I think we are getting somewhere, although I don't know where LOL.