I am building a disc sander accessory for my lathe. At least I hope I am. I have a 12" + a hair disc cut from 3/4" plywood, and a Penn State 1x8 tpi 3" faceplate to install to. I am wondering what is the best way to insure the disc and faceplate are centered against each other such that the disc doesn't wobble.
I was thinking of using a pencil compass set at 1.5" from the center pin hole from the circle cutting jig to outline where the 3" should be, draw crossed lines at 90 deg from each other to index the screw holes, and run it together that way, chuck it up, and run it sanding until it is perfectly round at 12" even...
I ordered a dedicated faceplate for this purpose. I wanted to be able to chuck it up, slide / clamp the table into position, hook up the dust hose and have a good go at it...
I was thinking of using a pencil compass set at 1.5" from the center pin hole from the circle cutting jig to outline where the 3" should be, draw crossed lines at 90 deg from each other to index the screw holes, and run it together that way, chuck it up, and run it sanding until it is perfectly round at 12" even...
I ordered a dedicated faceplate for this purpose. I wanted to be able to chuck it up, slide / clamp the table into position, hook up the dust hose and have a good go at it...
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