LSUROCKS
starting to spend too much on rocks
Member since March 2011
Posts: 137
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Post by LSUROCKS on Mar 24, 2011 13:52:16 GMT -5
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Post by jakesrocks on Mar 24, 2011 14:48:12 GMT -5
The hoods and pans will work for you, but 2000 RPM is too fast for lapidary wheels. You need to keep the speed down to about 1725 RPM's, the design speed for most lapidary wheels.
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LSUROCKS
starting to spend too much on rocks
Member since March 2011
Posts: 137
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Post by LSUROCKS on Mar 24, 2011 15:03:52 GMT -5
Problem is I already have wheels for a 6" and have not found any that are in the 1725 rpm range only the one that is 2000. does the 275 rpm's really make that much of a difference you think?
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Post by jakesrocks on Mar 24, 2011 15:12:26 GMT -5
The hard wheels would be alright, but the soft wheels might fly apart at too high RPM. Check your local hardware stores for grinders. You may find one with 6" wheels, and 1725 RPM's. That's what my first grinder was made from. You may even find one at a yard or estate sale, and save a few bucks.
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stefan
Cave Dweller
Member since January 2005
Posts: 14,113
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Post by stefan on Mar 24, 2011 18:48:12 GMT -5
You can get grinders in 1725rpm. Or look to lapidary arbors. It may not seem like a lot of difference between the 1725 and the 2000 rpm, but if your wheel flies apart at 2000/rpm your not gonna be real happy (not to mention the potential injuries)
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Post by jakesrocks on Mar 24, 2011 19:08:43 GMT -5
Preston, if you find a grinder in the right speed range, make sure it has sealed bearings, and a fully enclosed motor.
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