Re: [ATM] Bevelling

[Michael Lindner <mikell@optonline.net>]

On Sat May 20 2006 1:57 pm, Richard wrote:
> JB> try 1500 to 2000 rpm for starters
>
> Wow, OK Jan, I'll try it.

Generally, beveling strokes should be tangential to avoid pulling off chips.

That said, you may want to reconsider. At 2000 RPM, glass dust is going to be 
flying everywhere, and it is highly toxic 
(http://www.newportglass.com/amspyrx.htm) - you do not want to breathe it in!

Also, I would estimate that with a handheld diamond file it would take no more 
than 10-20 minutes to put  abevel on a 20" blank - less time than it would 
take to set up your mill (and clean it afterward!), and safer.

Clear skies.
-- 
Michael Lindner
http://www.starastronomy.org *** http://home.att.net/~mikel
http://www.atmsite.org *** http://www.atmlist.net
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