I usually use the shapeoko to mill hdpe, rubber, and a little bit of aluminum. I started experimenting with steel and I’m working on a 1/4" thick 4x6 part that has a couple of pockets and a contour cut. I started with a new bit but quickly burned it up (I had the RPMs set way too high) before I could finish contour cut. I tried my only other 1/4" end mill but I think it was too spent to use on steel.
Before buying a new bit and wasting the cash can the shapeoko cut long passes of 1/4" thick mild steel using the default rates, lowest rpm setting on the dewalt trim router and w40 as coolant and some compressed air to clear the chips.
If so, is the 1/4" endmill carbide 3d sells an appropriate bit for the job?
Thanks for your help.