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Re: [ATM] Rough generating blanks


Thanks everyone, ordering it gen'd to f/5.

cheers.

Paul

----- Original Message ----- 
From: "Mark Holm" <mdholm@telerama.com>
To: <atm@atmlist.net>
Sent: Monday, September 12, 2005 2:23 AM
Subject: Re: [ATM] Rough generating blanks


> Mel Bartels wrote:
>>  Cast the plaster against the surface using plastic
>> barrier, then glue tiles form fitted same way.
>
> Or use the tile in plaster method as outlined at
> http://www.gotgrit.com/make_tool1.php?osCsid=5e1d416e55dafaf477b6ecf152558513
> (not quite sure what all that stuff after the ? is, but Tom is a good
> guy, so I'm not worried about it.)
>
> This method saves the mess, time and expense of glue and gives a durable
> tool.  The process is actually very quick and easy.  I recommend the
> dental stone because it is strong and water resistant.  Buy it from Tom,
> or get it locally from a dental supply firm.  Since dentists are pretty
> widespread, so are dental supply firms.  Tell them you want a low
> expansion, high strength dental stone.
>
> When you mix it, you add the powder to the water, not the other way
> round.  You want a consistancy that is like very thick sticky mud, the
> kind that won't com off your shoes without scraping.  I think Tom may
> include recommended water amounts with his kits.  I think it is similar
> for all the dental stone products.
>
> If you want to do one bigger than he sells a kit for, drop him a line
> and ask the correct water ratio.  Also have him send you his written
> instructions for making the tool.  They are very clear and helpful.  (I
> think Richard Schwartz wrote them initially.)
>
> You do have to work fast.  The total working time of the dental stone is
> not more than 20 minutes.  Have everything set up in advance and it goes
> easily.
>
> Mark Holm
> mdholm@telerama.com
>
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> ATM mailing list http://www.atmlist.net/
>
> 

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