I’m extremely new to Easel (and CNC work) so this is probably going to be something obvious that I’m missing. What’s happening is that my first pass is plunging in roughly 4mm more than whatever I set my ‘depth per pass’ to.
So let’s say my depth per pass is set to 1mm, the first pass will rip through at a depth of 5mm (4mm+1mm) and usually break my bit, and then the next passes will be the standard 1mm. What this means is that my final piece (if my bit survives) is always 4mm deeper than intended.
I’ve realised that I can ‘rectify’ this problem by deducting my intended depth of pass (1mm) from the 4mm it overshoots on the first pass and then raising my ‘work zero’ position by that amount (so 3mm).
But that’s not ideal
I’m using a Sainsmart Genmitsu 40-40 Pro
And I’ve uploaded my gcode file
Untitled_roughing.nc (1.1 MB)