When experimenting with estlcam on RAMPS I noticed a problem. x- and y-axis are out of proportion/ratio. I tried milling a 40X40 mm square out of MDF, but I got 39x41.5mm. I thought it would be a problem with settings and stopped the experiment for that day.
Today I took the arduino mega with ramps on it (my experiment was on a new arduino mega) and wanted to mill a circle of 125 mm out of oak. I tried two, they came out as 124x131 (had the wrong bit selected in ESTLCAM) made a new toolpath and got 123x125 (right bit selected).
So it’s not a problem caused by ESTLCAM on the ramps.
TOday I tried the 400 square in MDF again, same results. Tried an 80x80 square: 79.3x80.5 and an 100x100mm square: 106.3x100.7.
I tested all screws for tightness, all steppers seem OK.
I had some leftovers from a couple of months ago, they are circles. When I check them the difference is 0.2mm when measuring x or y direction, which is very good.
What could i have changed?
As said I use ramps, repetier host as g-code sender and ESTLCAM to make my toolpaths. I will enclose the gcode for 80 and 100 mm square.
I hope someone has an idea to fix this.100x100.gcode (490 Bytes) 80x80.gcode (481 Bytes)