My Newb Plasma Table Attempted Build

rodw wrote:

i would write my own square in gcode. Its likely a bug in the shape gcodegenerated

Rod, it also did this today on a part I had programmed.

I don't think master is your issue. I upgraded my mast config yesterday and the day before and it cuts fine.

dvn4life1972 wrote:

rodw wrote:

i would write my own square in gcode. Its likely a bug in the shape gcodegenerated

Rod, it also did this today on a part I had programmed.

Then likely something mechanical or missing steps. YOU could try halving your X & Y acceleration in the ini file.

rodw wrote:

dvn4life1972 wrote:

rodw wrote:

i would write my own square in gcode. Its likely a bug in the shape gcodegenerated

Rod, it also did this today on a part I had programmed.

Then likely something mechanical or missing steps. YOU could try halving your X & Y acceleration in the ini file.

I'm confident it isn't mechanical at this point. That would leave missing steps or some other unforeseen thing. I'll try halving the acceleration as recommended and see if that helps.

Edit: Think it could be one of the drivers?

Im fasinated by the perfect round of your start. Do you have some starting code in your ini file?

Mike_Eitel wrote:

Im fasinated by the perfect round of your start. Do you have some starting code in your ini file?

No I don't. Could be just from me holding down the marker during probing.

Sorry if i ask again.
Realy? No g code presets, no plane changes, no switching tool, no diameter in tool table? For me that looks like an offset.
Mike

phillc54 wrote:

Well the gcode seems to be correct. Looks a lot like backlash or lost steps in the Y axis.

Run the Y axis back and foward and measure the results

I've been re-resquaring the gantry. Between adjustments I run the gantry and Z to the opposite corner of the table at 900ipm, then back to home and measure from the end of the rail to the gantry plates on both sides of the Y. It returns to the exact same position every single time. Wtf am I missing here lol.

Phil I don't think it's backlash. I do think it's lost steps somehow. Could it possibly be a driver? It's definitely not EMI-related whatever the issue is. I think I've run out of mechanical things it could be, although I did find a lot of things needing tightening up and adjusting along the way (and did so). The electronics enclosure has been shut for the last couple of weeks, so nothing going on inside...although I did peek in there yesterday and had to change the microstepping on 3 of the drivers. I could order another driver and even if that's not the issue it'll give me a spare.