Ok, so what's not right here?
Cut some 5mm Alu on the high-speed spindle yesterday and it looked ok i thought, confidence was restored
Went out and did another part today, same file, but results looked poor and scrutinising yesterdays work closer it seems the fault was there too but not quite as pronounced.
it looks like the toolpath on the finish cut is pulling away from the corners too soon - corner rounding??
The finish tool is a 2mm single flute carbide at 23000rpm, 1000mm/min feed.
Not sure why todays was worse than yesterday although the machine was slightly warmer yesterday as this was the second job run.
Great care was taken when doing the CAD&CAM to get the tool right into that corner to give a 1mm radius
The surface is actually smooth - the rough look is swarf stuck with cutting fluid;)
I did do some major servo tuning but have not altered speeds or acceleration in motor tuning.
What could do this, any suggestions?
These parts need to be accurate