Hello!
I've been building a CNC router for a while (gantry type, stationaty table), and got it ready enough to run some wood routing this summer (worked like a charm!)
Now I've been thinking about milling som aluminium, spent yesterday evening with some cad/cam and tried today: catastrophy.
It cut downward in a spiral to get to the right depth, started to spiral outwards and then it went crazy, wobbling all around the place.
I'm new to milling/routing so the basics on feedrates and spindle speeds come from sporadic googling, not a solid education.
I am pretty sure this is a major construction issue, that the gantry is to weak and give room for some movement.
However, I now ask you if there could be anything I can improve without rebuilding the entire machine.
Lubricant, feedrate, spindle speed, type of tool, climbing cutting or not.
Hope you have som constructive opinions!