Re: [ATM] help with hogging

["Norm Prince" <norman.prince@verizon.net>]

>I am ready to start hogging my first piece of glass and I am having serious 
> >issues.  Should I use the tile tool I made, should I use the pipe cap I 
> >found?  Which stroke should I use?  Someone please give me some >guidance.

The simple fact of the matter seems to be that you can use either...

Assuming as i am that the pipe cap is smaller than the mirror, and that the 
tile tool is the same radius as the mirror.  If that is the case then the 
tile tool will take you longer, and probably use up more grit than the pipe 
cap.  You might also run into problems grinding thru all the tile on the 
edges of the tool.  But if you rub the two together right you'll still get a 
curve.  Then you can cast a new tool for the rest, or if you still have a 
bunch of tile thickness left you can just keep on going with the one you 
have...because the curve is already a good match.

>>Why did you make the tile tool first?  You must have
>>missed the instructions.....

It seems that hogging with a subdiameter chunk of metal is preffered, and 
faster method of hogging out mirrors by ATM folk.  To be sure this is not 
the only method described in the body of literature that exsists on this 
topic.  The first mirror i made was made with a tile tool made for the 
purpose of grinding prior to actual grinding (i even made a pitch lap out of 
it after grinding...bad idea if you need to go back to grinding).  We don't 
all read the same books.

I think Dale is 100% right tho...hog away!!!..., and have fun!

-norm-
Georgia, USA (land of silly early DST)


----- Original Message ----- 
From: <worm@valornet.com>
To: <ATM@atmlist.net>
Sent: Sunday, March 11, 2007 21:51 PM
Subject: [ATM] help with hogging


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