Re: [ATM] polisher spindle diameter

[William Marriott <bmarriott@pacbell.net>]

Hello everyone!

Well, seems there are a lot of different ways to
tackle my spindle/bearing setup. I was originally
thinking that I would use a 2" shaft with two pillow
block bearing mounted on a channel bracket bolted to
the machine frame.

But, I had a conversation with a friend of mine, a
retired engineer/machinist, who has an incredibly wide
knowledge base on all things metal and moving. 

He suggested I get some thick wall steel tubing, 4"
diameter, 1/2" wall thickness, or something similar,
with a cut being made top and bottom to accomodate a
heavy duty precison bearing.  Have a flange welded to
the tubing, so it can be bolted to the channel
bracket, then bolted in the frame. (Frame material is
6" high wide-flanged I beam)  He seemed to think that
the pillow block setup was definitely not the way to
go for the most stable, vibration free, main spindle.

I have noticed there are a lot of online metal
companies who are willing to deal with small
quantities, and you can get just about anything you
want to build a stout polishing machine. 

Onward

Bill Marriott
Woodacre, CA

Guitars and Stars, the best of two worlds
http://HagstromWorld.com
http://StarlightOptical.com
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