From: "Russell Jocoy" 
To: chexmix{at}burningclown.com, atm{at}shore.net
Reply-To: "Russell Jocoy" 






>From: Glenn Becker 
>Reply-To: Glenn Becker 
>To: atm{at}shore.net
>Subject: ATM update on post-disaster :)
>Date: Mon, 10 Mar 2003 10:01:10 -0500
>
>
>Good morning, ATM-ers,
>
>I thought I would type a small update for those who are following my
>tale of a dank hydrostone tool ...
>
>Last week I ordered a Dremel, partly out of a thought that I might be
>able to grind down the bad area on my tile tool, but also out of a desire
>to "get myself something nice" despite the fact that I am perpetually
>poor and eat a lot of Peanut Butter Dinners. ;D
>
>Then, while sitting around antsy this weekend, I recalled that I'd
>purchased a grinding stone in case I needed to re-bevel my mirror. So
>yesterday I manually ground away at the high tiles, tested, ground some
>more, tested, and ground until I could no longer feel any grabbing.
>
>Unfortunely, I picked up a few fragments of tile in the process and made
>some *nasty* scratches on the mirror. Chalk this up as another lesson
>learned!
>
>I retreated to #500 carborundum and ground a sufficient number of hours
>to make my 41 year-old lower back very stiff. The scratches disappeared
>and then I ground 2 1/2 hours further, just to make sure. I am back
>where I was before I went to 12 micron a week ago ... except for a
>couple of small edge chips from banging into raised tiles.
>
>I should mention that I am grinding exclusively tool on top. Did a
>sharpie test and it revealed that the center of the mirror was slightly
>high - not bad, but perhaps enough to contribute to the "vacu-drag" I
>experienced. Also, tool on top means less dunking of the tool, since the
>muck moves down and off the sides of the mirror instead of plugging up
>the channels so much. And when you suspect your tool is degrading
>because it's taken on water, the less dunking, the better.
>
>I'm hoping to hold everything together through 12 and 5 micron and then
>proceed to the polishing. Are there issues with my finishing out tool on
>top exclusively?
>
>Thanks for everyone's help.
>
>Glenn
>
("atm{at}shore.net")

   Glenn,  It sounds like this tool is giving you fits... I have been
grinding two 5/8" mirrors, one 10" and one 9" Since these
mirrors are so thin I have not put the glass on top. I have used TOT from
the beginning.
  As long as you keep things rotated and do the barrel dance, and have
support for your glass I don't
see problems. I am now on 12mic and both mirrors have nice spheres going.
Polishing will tell.
I have done the sharpie tests all along and it takes two or three
"W" runs and the marks disappear.
     ("atm{at}shore.net")

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