Good day

Please see photo

I used end mill 3mm for finishing

feed rate 25mm/sec
step over is 30%
spindle speed 8000 rpm
depth of the cut 8mm
stock thickness 18 mm


There are 2 issues as you can see in the photo

1-You can see the half circules (like if the bit is drilling holes not milling) along the neck line.
2-the second issue is the bit stroke lines like strips. I think this has to do with the spindle vertical alignment (Not sure because the alignment looks fine).


Philip

Thanks