So, lets assume for a moment I have a SP4 that has a gantry that is out of square by ~5mm over 990mm diagonal. The machine appears STABLE, so that it doesn’t randomly change shape, but its shape is not square, it is a parallelogram. Also, X0 → X700 is the same as X0,Y700 → X700Y700 to within .2mm. Also, Y0–>Y700 is the same as X700,Y0 → X700,Y700.
My options appear to be:
- manually tweak the gantry by loosening screws and tightening screws until that skew goes away enough for me to be “happy” and move on.
- Get angry, then do #1.
But… isn’t there someway to fix it in code? Shouldn’t there be a simple setting that tells the machine “I’m actually 1.2374 degrees out of square. If I want to make a horizontal straight line, I need to move 100mm in the X and .021343m in the Y.” Don’t 3d printers do something like this?
Shouldn’t that be easy to do? Does that ratio already exist in code like the stepper # does and I just can’t find any reference to it?
And, if there isn’t, I’ve seen some online descriptions on how to square the machine, and they mostly seem to be either SP5s, or SP3s. Is there something specific to the SP4? or no?
Thanks,
mw