- Apr 4, 2017
First let me say that I've been very happy with this machine. It's a very capable small mill. Anyhow I was machining some 1/4 uhmw plastic today about 2200 rpm with a 3/8 HSS cutter taking light cuts .025 or less. My spindle got pretty warm, sure you could put your hand on the head but it was much warmer than Id like. When I went to remove the collet and endmill the collet itself was almost too hot to touch. Any thoughts? I've had this machine since I believe Feb so it's definitely broken in I'd say.