Re: [CAD_CAM_EDM_DRO] Flat as a (very precise) pancake...

Hi Jon,

Yes, a good idea. I use superglue a lot for temporary fixing - when I am
making watch parts by hand I can superglue them onto bigger bits of metal to
use as 'handles' and, to release them, you just need to either flex one of
the parts or warm them up.
I wouldn't have thought about doing this with such big chunks of metal
though.

Ian
--
Ian W. Wright
Sheffield UK
www.iw63.freeserve.co.uk

----- Original Message -----
From: "Jon Anderson" <janders@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: 29 March 2001 16:14
Subject: Re: [CAD_CAM_EDM_DRO] Flat as a (very precise) pancake...


> Ian,
>
> A trick a mold maker showed me:
>
> Drop a spot or two of super glue at each corner of the plate you are
> trying to grind. You need to make sure any bow is facing up.
> Set the plate on the mag chuck and as quickly as possible, turn it on.
> Wait a few seconds, release it, and grind. When you are done, a sharp
> rap parallel to the chuck surface with a hard plastic mallet should
> release the part and acetone will remove the residue.
>
> Needless to say, do not do this with tall parts, and one must be very
> careful to take light passes and not get the part hot enough to degrade
> the superglue. I watched this guy make up 4 2-4-6 blocks that were all
> matched to .0001 in height, parallel, and squareness.
>
> Jon
>
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