Spent the weekend running the #shapeoko2 cutting aluminum for the #bukobot open source 3D printer make. 1/8" carbide cutter at 150mm/min. 0.2mm depth of cut per pass using DW660. There are 4 of us making the 3D printer so I cut 4 sets in total and 2 sets per bit.
Wooow!!!.. Looks awesome!!..
The edges look very rugged and 150mm/min is painfully slow progress but the produced parts should work.
The 150mm/min is not too bad. It takes about an hour per part but I am playing with the kids whilst that is running. Yes I think with the tool totally encapsulated it gets rough. If I do another I may create a pocket rather than a profile cut and offset by 1mm just to give the tool extra clearance. This would double the time though. Still fun to be able to make this stuff at home though. Cheers.
What alloy did you mill? I cut some 5052 this weekend and it milled really well. 200mm/min with .4mm passes and WD-40 lubricant.
I ran Aluminium (AlMgSPb) at 2000mm/min.
Could have gone to 2500-3000 if not for the sound level.
Cheap Chinese 1.5KW spindle in a cheap chinese CNC. (YOOCNC 6040 with replaced electronics.) with cheap HSS tools instead of carbide.
It would be fantastic to run a shapeoko at those speeds. I know it’s no where stiff enough to run at 2000mm/min though. I accidentally tried milling AL @ 750mm/min and the outcome was sub-optimal.
It was 6062 material.