Re: [ATM] Which tool for a 14 inch blank ?

["Mel Bartels" <mbartels@bbastrodesigns.com>]

>> I'm starting a new project : it will be a 14 inch f/5 binocular 
>> telescope. The first step is to make the mirrors. So far I've ground only 
>> small mirrors (6 and 8 inch). I wonder what is the best tool size for a 
>> 14 inch mirror : full size or smaller ?

Describe "BEST" in your words.  Then we can help you with the answer.

For some, "BEST" results in an oversized lap (that's me), for others, a full 
sized or nearly full sized lap.  For those who've used sub-dia laps and like 
their advantages, BEST means a lap size as small as 50% the mirror.

Mel Bartels 

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