Engraving/machining acrylic

**naijin** · 16-09-2016

Originally Posted by A_Camera

Do you have any dust extractor? In my opinion that is VERY important.

The smallest bit I am using is a 0.5mm but it is a dual flute. Feed rate is EXTREMELY critical, run it just a tiny bit faster and it snaps. But... if you are engraving for LED signs then V-bits are better unless you need to engrave large letters or remove a lot of material, because those are more rigid. Never the less, if you run it too fast or too deep you will snap off the tip, especially the tiny 10degree 0.1mm are very sensitive.

Hi there, I have done about 10 acrylic signs so far, I use a v bit and a 3mm end mill but I only go as high as 7000-9000 rpm and it seem to work ok.

Nick

**andy_con** · 15-10-2016

Thanks for the advice got speeds and feeds perfect

**A_Camera** · 17-10-2016

Originally Posted by andy_con

Thanks for the advice got speeds and feeds perfect

Looks very nice, but I find the LEDs at the bottom disturbing. The sign is though really well made.

**A_Camera** · 17-10-2016

Originally Posted by naijin

Hi there, I have done about 10 acrylic signs so far, I use a v bit and a 3mm end mill but I only go as high as 7000-9000 rpm and it seem to work ok.

Nick

Yes, that's what I am using as well. Have not tried to run faster yet, but will try soon.