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1st decent attempt

Posted: Sun Oct 18, 2015 6:47 pm
by kmartin57
It's not 3D, but I'm happy with progress I've made. Inkscape, PEP5, my own gcode sender, grgl .9j (slightly modified). Approx 4.5" x 4.5". 500k+ lines. 1hr 5min.

Re: 1st decent attempt

Posted: Sun Oct 18, 2015 7:30 pm
by Picengravertoo
Looks good for a start. It looks like you have some ghosting though. Is there a delay in the laser burn running in one direction or the other? Or could it be backlash with your mechanics? PEP5 has a setting to compensate for either.

Re: 1st decent attempt

Posted: Wed Oct 21, 2015 6:49 pm
by kmartin57
I'm not 100% sure what you mean by ghosting, but I think you mean the ill defined edges. My guess is that it is backlash, trying to tighten up the belts now.

In PEP5, I couldn't find the settings to compensate. I tried enabling G61/G64, but those codes are not supported by grbl.

Re: 1st decent attempt

Posted: Wed Oct 21, 2015 7:03 pm
by Picengravertoo
Shadowing may be a better term then ghosting, but you know what I meant. This setting will compensate for the backlash.

BLC.JPG
BLC.JPG (13.79 KiB) Viewed 4330 times


The Enable G61/G64 is for a Mach3 controller. It's enables Constant Velocity.