Re: [ATM] (not) grinding with diamond

[James Crombie <jamescrombie@jamescrombie.com>]

Michael
 Excellent website and grinder.  I was thinking of adding something 
similar to my grinder sometime in the future.
 For those whose german is less than perfect(or non existant :-) here is 
a translated page from google.  The translation alone makes it 
interesting :-)
http://translate.google.com/translate?u=http%3A%2F%2Fwww.astro-electronic.de%2Fschleif.htm&langpair=de%7Cen&hl=en&ie=UTF-8&oe=UTF-8&prev=%2Flanguage_tools 



Michael Koch wrote:

>Doug,
>
>  
>
>>Things then went progressively slower until it basically stopped grinding
>>at about 8".
>>    
>>
>
>There are a few things that you can do, and most of them have already been 
>mentioned by others:
>1. Keep the pressure as high as possible. After some hours of work, the area 
>where the tool is in contact with the glass becomes bigger and bigger, so 
>that the pressure per area decreases. At this point, I recommend to adjust 
>the angle of the tool so that the contact area becomes smaller.
>2. If the pressure is too small, it's necessary to sharpen the diamond tool 
>from time to time with carbo grit.
>3. Higher cutting speed would also help, but I avoid this because I don't 
>want to get too much glass dust in the air.
>Have a look at my diamond grinding machine:
>http://www.astro-electronic.de/schleif.htm
>Sorry, the text is in german only. There are two Mpeg videos on that page.
>The pressure between the tool and the glass is:
>-- weight of tool, about 5kg
>-- plus weight of motor, about 10kg
>-- plus additional weights mounted at the end of a long lever, about 40kg
>and it's still not enough pressure.
>
>Michael Koch
>
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>
>  
>
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