Reply To: New Mill

[david pierce]

Tom,
That is a well kept secret and if I told anybody I could be in a lot of trouble.
OK, Ok, indicating something in refers to running a dial indicator over a surface and adjusting the surface until the needle nulls out. For example to indicate in a milling vice, chuck up a dial indicator in the mill spindle and crank the bed back and forth adjusting the angle of the vice until the needle no longer moves. When the vice is locked down and the dial indicator needle no longer moves, the vice is indicated in. For holes and pins on the mill the dial indicator is rotated around the hole or pin and the X/Y axis’s are adjusted until the needle nulls out. On a lathe a part is put into a chuck and rotated using the same principal. With a 4 jaw chuck the jaws can be moved with a wrench, with a 3 jaw chuck the adjustment is made with shim stock.
david