Recent content by engrwpride

Thank you for all your help and patience. The solution would be to just use a slim collar with a nylon tipped set-screw.

I appreciate all the feedback so far. I thought about drilling a collar to the right bore diameter but then i run into the problem of how i would attach the collar to the square aluminum square piece. Welding is out of the question...maybe glue, but that is pretty tacky. Ideally, the aluminum...

A bulkhead fitting would be perfect if it was easily and quickly removable, relatively tiny, and came in a 0.180 inch size.

The thin aluminum square piece will stand vertically upright with the shaft running through the middle. This shaft is actually a hollow sleeve that a cylindrical probe fits into. The aluminum rectangular part helps position the probe stem.

A chuck would be too big. This needs to be the least intrusive on the airflow as possible. I am looking at 3/16" RC powerboat collets, where the threads for the collet nut would be threaded on a male end sticking out from the aluminum piece. The 0.18" shaft or rod goes through this middle piece...

Possibly the worst thing about this is that the shaft diameter is 0.180 inches. Not a standard size being below the 1/4 inch threshold standard for shaft collars and stuff like that.

I need a way to fix a 0.160" diameter shaft into a 1/8" x 1/2" x 1/2" hunk of aluminum. The shaft cannot be damaged with a set screw and I would rather not rely on the elastic deformation of the aluminum block with a slot for displacement of the aluminum material. The shaft needs to be easily...