ATM Grinding machine simplification

[Adam Perkins <scopeguru@yahoo.com>]

Well,

I've finally arrived at the point where I've drawn all
I'm going to draw and scrounged all I can find, I'm
actually constructing my grinding machine!

I've been kicking some ideas around for a year, and
have settled on a scheme I think I can live with. 
I've devoted alot of thought to simplifying my design
to the absolute minimum level of complexity.  Which
has led me to the following question...

What if my machine's over-arm is not actuated at all? 
A simple turntable could be built very compactly and
rigidly, with a bare minimum of moving parts.  A very
rigid, fully adjustable arm holding a tool-pin would
allow grinding and polishing (if I'm interpreting
Dennis Rech's M-O-M manual correctly).  The only time
an actuated arm is absolutely necessary is for
figuring, right?  Why not just figure by hand on the
turntable?

I will probably go ahead with the design I've already
sketched (with an automated stroke), but would love to
hear from anyone who has used a "plain" turntable.  To
be honest, the real appeal of a simple turntable would
be its small footprint, I'd like to be able to store
my machine conveniently.

Clear skies,

Adam Perkins
Covington, Louisiana




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