Thread: this was too easy

I built one of those little punch apparatus described in another thread which involves drilling a 1//16 hole into a bolt, and then boring a 3/32 hole into that and then drilling a 1/16 hole into another bolt and using a piece of 1/16 drill shaft and a tiny piece of 3/32 brass tubing to make a domed washer.

It's fussy, and there is some flattening and trimming and polishing of teeny little washers to do.

I was thinking of going to a friend who is a gifted machinist to see if his cnc can make a little punch or a swage to do this, and then i thought of stacking three of the very small microfastener washers onto the drill shaft, putting one of the larger microfastener washers on, and using the punch in the usual manner.

Got me a perfect domed washer which only needs a little polishing.

The 3/32 hole isn't nice and smooth being made with a twist drill, but my buddy could no doubt do a better job with his fancy machines. i guess it's the same principle as a doming block, but having a 1/16 pin centering everything made it basically foolproof.

The bullet-shaped object is a brass rod I turned down with a drill and a file that can be used as a punch to accomplish the same end.