Removing Tool Marks in Acrylic

[kileka02]

Hello,

I'm relatively new with CNC work. I'm pocketing designs in mirrored acrylic, and I'm wondering if there is a good way to eliminate the tool marks left from the path in the acrylic. The attached photo shows the marks I mean. I'm cutting 1/8" thick acrylic to a depth of 1/16" with an Amana Tool 51517-k Spektra Coated single flute down cut bit recommended to me for plastic cutting. I'd prefer not to have to do any sanding or buffing by hand if possible. Thanks!

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[Jim Dawson]

The best way is not to generate the tool marks to begin with, I use soybean oil, just brushed on or applied with an oiler, seems to work pretty well. Also keep the chips evacuated so they are not being recut.

Also Google: flame polishing acrylic

[warrenb]

Use an up cut bit for pocketing. And play around with finishing passes.

[kileka02]

Thank you Jim Dawson, I will try those!

- - - Updated - - -

Thank you warrenb, I'll try that too!

[Sterob]

I've waved a flame gently over cut acrylic and removed a lot of the cutting marks. ( hand held gas torch)
It might pay to practice on scrap before you go balls deep....lol