Message Index Start New Topic Photo Gallery FAQ and Use Tips Bob's Rock Shop

So. How long should a diamond belt last?

Last summer, I purchased an old Lortone combination machine from a local lapidarist. It came equipped with a worn silicon carbide 100 grit grinding wheel. This summer, I decided to upgrade the grinding wheel with an expanding rubber drum and diamond belts. After investing almost $80.00 in the wheel and the belt I was pretty excited to spend the summer grinding with abandon and using my sanding, prepolish and polish equipment and turning out cab after beautiful cab.

At first all was well. I'm almost positive I'm using plenty of water during the grinding.....I sure come out of the process plenty wet. Not seeing any sparks, and as far as I can tell my rocks are staying plenty cool. I've ground maybe 12-15 stones...mostly Lake Superior agate, a couple of aventurine freeforms, and two or three peices of flourite, which I never finished.

The belt appears to be totally worn out. All of the diamond coating seems to be gone except for a little along the very edges. I can see the backing everywhere else. I paid $33.00 for this belt from a reputable supplier in Norway, Michigan.

If a diamond belt is going to be totally shot after about a dozen stones, I'm going back to a silicon carbide wheel. I cannot afford to replace them that often.

From D. Johnson - July 04, 2007 at 18:30:44

Message: 64520

Message Index Start New Topic Photo Gallery FAQ and Use Tips Bob's Rock Shop

Gemstone Beads Galleries:   Agate Beads   Amethyst Beads   Apatite Beads   Aventurine Beads   Azurite/Malachite Beads   Blue Chalcedony Beads   Blue Lace Agate Beads   Bone Beads   Botswana Agate Beads   Carnelian Beads   Charoite Beads   Chrysoprase Beads   Copper Beads   Crazy Lace Agate Beads   Fiery Agate Beads   Fluorite Beads   Green Chalcedony Beads   Hypersthene Beads   Jasper Beads   Lapis Beads   Magnesite Beads   Malachite Beads   Moonstone Beads   Multi-Stone Beads   Pearl Beads   Petrified Wood Beads   Quartz Beads   Rhodochrosite Beads   Rose Quartz Beads   Ruby Beads   Rutilated Quartz Beads   Sagenite Agate Beads   Sapphire Beads   Sardonyx Beads   Seraphinite Beads   Spiderweb Serpentine Beads   Sunstone Beads   Tiger Eye Beads  
Turquoise Beads Galleries:   Graduated   Misc. Shapes   Nuggets   Rondelles   Rounds   Spiderweb Turquoise   Square and Rectangular  
Pendants Galleries:   Pendants  

Bob Keller