Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: jacques_w on August 11, 2025, 11:11:40 AM

Title: Mil on acryic
Post by: jacques_w on August 11, 2025, 11:11:40 AM

I want to mill acrylic from now on. Question: What speed (F) should I use and how much rotation (S) should I use?
Please answer.

Title: Re: Mil on acryic
Post by: rcaffin on August 13, 2025, 06:48:44 PM

If you spin too fast the acrylic will melt. Feed can be as fast as you want, subject to breaking cutters.
Really strongly recommended is to use some lubricant - not 'flood cooling', just a little lube, so the cutter does not drag. I use a mix of 3 parts kero to 1 part olive oil (skin friendly), but straight kero or even water might work. Check out "MQL" as well.

Cheers
Roger