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How to cut multicolor engravable polymer
Posted: Fri May 05, 2017 1:15 pm
by gbutler
I am new at cutting King Color Core which is a multi color polymer. I have tried numerous times without success using a Onsrud bottom surfacing 1/4" double flute upcut # 66-314. I keep getting swirl marks on the cut. I am cutting a fairly wide about out. It is red/white/red. The white is showing the swirl marks. I use VCarve Pro. I set the rpm at 15000 and 180" per minute. The stepover is at 25%. Any suggestions?
Re: How to cut multicolor engravable polymer
Posted: Fri May 05, 2017 6:04 pm
by Rcnewcomb
That is the right bit for the job. Is it possible that your spindle is slightly out of plumb?
Re: How to cut multicolor engravable polymer
Posted: Fri May 05, 2017 8:01 pm
by highpockets
I agree with Randall.
You might also decrease the step over to something around 10% to 8%
Re: How to cut multicolor engravable polymer
Posted: Sat May 06, 2017 4:32 am
by Mobius
How is the material secured? If it is vibrating, it will leave marks as well.