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Posted in response to Re: Re: Drop/Chop saw help from Rob on August 17, 2006 at 06:09:45:
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I have a 14" Lortone Drop saw and have certainly experienced the slowdown when cutting large nodules or jasper/ agate. Ordered the best blade sold by Lortone, increased HP to 1/2 from 1/3, tried changing pulley sizes. Discussed the problem with an older shop operator who felt the difficulty was the blade running in a concave section of the rock with the result that the cuttings were not flushed readily from the cut resulting in a ballbearing effect on the blade edge. Tried moving the clamp on the saw base to allow the piece to be moved off the center of the blade to reduce the concave cut. Set up a pump in a pail pumping fluid to the top blade edge and cuttings draining to bottom of pail to settle out sooner. Ran a mixture of autotransmission oil and kerosene for a thinner coolant, had to cover the saw due to misting with this setup. In summary some progress but still difficulty with hardest materials and larger pieces, now use a 24" Highland Park for the bigger material and the drop saw for smaller nodules, hpoe this helps.......dave
From DaveCapstick - August 17, 2006 at 07:02:39
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