Wanted to add a bit of calc’s i have been doing to see if this makes sense:
I measured my X-axis to be ~ 3% negative to expectations (24.17mm vs expected 25mm). I entered the bit as 3.175mm vs actual of 3mm for cut diameter (+6%). So, basically, my cut should have been 6% larger than 25mm, but, ended up -3%. Now in SketchuCam I entered a Overcut of 109%. The delta from +6% to -3% is 9%. Maybe this was due to the 109% setting? Of course this means my Y axis needs a minor tweak, but, what do you guys think?
Turns out that In/Outside Overcut % in SketchUCam is for depth. So, essentially go 109% of material thickness. Looks like i need to calibration steps maybe
@Rod_Wintle great looking first cut sir! Way better than my first.
If your holes (much smaller diameter) seem accurate and the larger item 25mm square seems small, I agree with steps/mm.
Might want to go to something cheap like MDF (have a respirator, stuff puts off some bad junk) and go much larger on the square. 12"x12" maybe or larger. It’s easier to iterate a few steps/mm test without wasting expensive material.
