I just tried cutting out a closed shape with a cut out circle in the middle. Both the X and Y dimensions of the resulting piece are off, but by differing amounts. The width (X) of the piece should have been 292 mm, but was 287.3 mm. The length should have been 343 mm, but was 332 mm. So I’ve lost 1.6% in X and 3.2% in Y of the overall dimension. The circle cut out was 71.5mm in Y and 73.5mm in X when it should have been 70 mm in diameter. I was cutting in 1/8 inch birch plywood with a 1/8 inch down cutting end mill feed rate of 20 mm/s with a 3.5 mm pass (so entire thickness of plywood). Designed in AutoCAD, brought into EstlCAM 8 to create gcode. Controlled MPCNC with RepetierHost
Did you buy everything from here? YES. Original 23.5mm parts purchased back in April/May 2016
a)If you didn’t or changed some things please don’t leave out any details.
b)What firmware? that which came on the board back in April/May 2016.
Are you using end stops? NO
Are you using all my recommended parts? ALL EXCEPT
a) Using HICWIC mount for the Dewalt 660
Include a picture so obvious errors might be spotted.