Re: [ATM] Ultrathin mirrors, a grinding machine

["tony gondola" <acgna@comcast.net>]

What advantage are you gaining by replacing the standard overarm and spindle 
with the Hindle type frame?

Tony

----- Original Message ----- 
From: <vorblesnak@peak.org>
To: <atm@atmlist.net>
Sent: Saturday, June 17, 2006 8:42 AM
Subject: [ATM] Ultrathin mirrors, a grinding machine


> In an effort to better understand the dynamics of pushing ultrathin glass,
> I made a simple hand crank grinding machine.  Belt driven, I can attach a
> motor and belt drive the crank to automate the grind.
>
> It ain't pretty, but it works.  I made it specifically for pie plates so
> it is probably smaller than most.  The photos are taken on the workbench
> in the wood shop.  I used nylon bearings, pipe for the shafts and plywood
> for the body.  It will handle up to a 12 inch piece of glass.
>
> It is patterned after a Waineo but I used a Hindle type alligator to
> control the plates so they could be held by the top edge.  Hence the name
> Waindle.
>
> With no weight the pie plate will rotate as strokes are taken but once
> some weight is added to the pie plate the rotation stops.  I will have to
> put a kicker of some type at the edge so the pie plate is nudged a bit and
> rotated as the strokes are taken.
>
> http://www.atmlist.net/contrib/vorblesnak-at-peak-dot-org/Waindle%20machine/Puny%20Waindle.jpg
>
> http://www.atmlist.net/contrib/vorblesnak-at-peak-dot-org/Waindle%20machine/Waindle%20Aligator.jpg
>
> David Davis
> Toledo, OR 97391
>
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