[huwwuh]

I have implemented my floating head arrangement (a bit crude but quick and easy to make). It uses a Kress spindle.
It works fine until I've cut about an inch (through acrylic) when either the tool overheats or the nose cone starts riding up on the swarf. If I remove the nose cone I can cut a clean line no problem but obviously without the cutter setting its own height.
I think that both of these issues are down to swarf collecting around the cutter in the nose cone.
Does anyone know how to keep the nose cone clear while it's cutting?
Should I hack a quarter out of the nose cone so it's partially open or is there another way?
Attached are pictures of the set-up including the nose cone.

Any help much appreciated.