I cut the following with a CNCRP 4824 Pro using a 1/32" bullnose spinning at 13100 and at a rate of 75 ipm. The wood is walnut. This is the first time I cut a recessed project and my question concerns the horizontal lines present throughout but most noticeable on the curved surface. The cutter swept in a raster pattern from L > R > L so I'm guessing there is something amiss in the Z axis. I tried different cut rates and a larger bit (125 and 50 ipm, a 1/16" bullnose) but the results are the same. I'm hard pressed to say I can actually feel them with my fingertip but obviously they are easily seen and will need to be sanded out. Any help as to where to look for the cause? Any other info I can provide?
I realize the lighting is horrible and the pic is upside down but the salient feature is seen.