It's suggestive that the ripples in your part surface match the pitch of your ball screw. Have you checked it for mechanical issues, like a loose nut?
Hello to all the forum, this is my 1st post in here.
I have a problem as the title states the weird surface pattern. It is every 4-5mm as the pitch in ballscrew. Please check attachment.
First pass was with 1mm stepdown and 0.7mm offset. Second pass was with constant Z strategy with 0.1mm stepdown. Same pattern appears in radial strategy with 0.06mm stepover. Off course second pass was a ballnose endmill.
I played we tolerance in solidcam but made no difference.
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It's suggestive that the ripples in your part surface match the pitch of your ball screw. Have you checked it for mechanical issues, like a loose nut?
[FONT=Verdana]Andrew Werby[/FONT]
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Thank you for your reply. I have disassembled cleaned lubed the z axis 4 times. Some behavior. I also installed the polyurethane couplers ( old was spring type aluminum) nothing changed.
Only thing i can think of is the ball screw is bented somehow. I don't have a way to know.