deburring delrin/acetel

[acidcustom]

hi guys whats the best way to deburr acetal/delrin after it has been milled
I am using scotchbrite pads at the moment but that is no good on intricate shapes

all help appreciated acidcustom

[svenakela]

If I don't remember totally wrong I was "frosting" some delrin parts with a piece of paper soaked in acetone. It gave a very nice matte finish. But don't use too much acetone though...

[acidcustom]

thanx for that I may have to try that

[Bullnerd]

I use a standard utility knife blade(stanley).
But not in the traditional way.When they stamp the blades it produces a slight burr(not the cutting edge,the angled sides) on one side.You can see it if you look close.Hold the blade in your fingers similar to holding a pencil,with the burr away from you.Place it up to your part at about a 45 deg. angle and push it away from your other hand.

Hard to explain on the puter but it works great.I can take a pic if your you want.

[fizzissist]

There's a great burr tool made by Shaviv, a ceramic blade, that I use a lot for teflon, and it doesn't dig in or gouge when used carefully.

I didn't think it would work, but it has turned out to be incredible for really soft stuff. It does teflon and delrin equally well.

For complex shapes, have you thought of dry ice and a tumbler? Years ago we tumbled punched dense foam rubber parts with an abrasive and chunks of dry ice. The flash from the punching operation came right off. (they were slot car tires....!)

....a place to start....
http://www.shaviv.com/shaviv-pdf/SHA...05-English.pdf