I used this file to test both machines on milling both 304 and 316 stainless steel. The picture shows the depth milled to .018”, but I also milled it to .01” which also looks nice and is the depth set in Carbide Create. There is plenty of room to play.



Note: I uploaded the file in two versions of Carbide Create. CarbideForLife_SS_CC313.c2d is the older version for those of you who have not updated to the version that contains groups. CarbideForLife_SS.c2d is the newer version running in beta(currently 316).



Tool: #501 60° PCB Carbide Endmill



https://shop.carbide3d.com/collections/cutters/products/501-pcb-engraver-qty-2?variant=44153728198



Cut using these settings:

Depth Per Pass: .003”

Feed 1.8”

Plunge .25”

RPM: 9,000





Tool: #112-Z ZrN Coated Carbide Endmill



https://shop.carbide3d.com/collections/cutters/products/112-z-0625-coated-flat-cutter?variant=8752641245275



Cut using these settings:

Depth Per Pass: .003”

Feed 8”

Plunge 1”

RPM: 9,000





I attached the steel to a piece of acrylic using double sided tape and created a small wall for coolant using polymer clay. I’ve experimented with a few different types of coolant and use this one frequently.



https://www.precisebits.com/products/chemicals/cutting_oil.asp