Deep indented mark at start point of carbon fiber
I did my prototype before sending my dwg file to a shop to cut a 5mm thick carbon fiber sheet for me.
The part suppose to be symmetry and smooth like the bottom part(green arrow), but the shop made a deep indented, drill mark(red arrow), which is 1 mm deep into my part.
The shop claim it to be the start point point the drill and it is unavoidable. ( I don't have such problem using my chinese cnc)
Anybody know what caused the indented mark? And what can I tell the shop to fix the issue?
Thank you.
http://www.cnczone.com/forums/attach...d=370938&stc=1http://www.cnczone.com/forums/attach...d=370942&stc=1