View Full Version : Newbie Chip extraction problems with PVC??

02-16-2009, 04:44 PM
Hi all, newbie here. I've been cutting moslty HDPE for the past 5 years and never had a problem with chip exptraction using Onsrud Single Edge Upcut Spiral O-Flutes.

I'm now cutting a lot more PVC sheeting (mostly 3/8" & 1/2" thick), and the problem is that the chips stay jammed in the toolpath (not melted). It was suggested to go to a Double Edge bit, but I got the same results. I've tried varying feeds & speeds without any luck.

Can anyone suggest a bit that might work for me?

Thanks for your help!