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Post by Rockoonz on Sept 7, 2014 20:41:00 GMT -5
If you are a good welder you could build you own saw tub, but it needs to be very rigid. Moving the rock club shops 24 inch saw taught me a lot about bad engineering. If you can roll a slab saw on caster wheels across a floor that is not flat and all 4 wheels remain flat on the floor there is a problem. If I ever was to build a saw in a wooden box the support for the feed vice rails and the arbor would both be mounted to a heavy duty rigidly welded frame that would bolt into the saw tub. I would do the same if the tub is to be formed from sheet metal rather than plate steel. if it can flex it will and in a short time you will pay for a brand new saw many times over in replaced blades.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,155
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Post by jamesp on Sept 7, 2014 21:49:28 GMT -5
If you are a good welder you could build you own saw tub, but it needs to be very rigid. Moving the rock club shops 24 inch saw taught me a lot about bad engineering. If you can roll a slab saw on caster wheels across a floor that is not flat and all 4 wheels remain flat on the floor there is a problem. If I ever was to build a saw in a wooden box the support for the feed vice rails and the arbor would both be mounted to a heavy duty rigidly welded frame that would bolt into the saw tub. I would do the same if the tub is to be formed from sheet metal rather than plate steel. if it can flex it will and in a short time you will pay for a brand new saw many times over in replaced blades. What does the flexing do to the saw blade Lee?
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Mike Menzie
noticing nice landscape pebbles
Member since October 2012
Posts: 96
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Post by Mike Menzie on Sept 7, 2014 23:21:01 GMT -5
Heh. Again, no welding taking place ;-)
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Post by Rockoonz on Sept 7, 2014 23:21:59 GMT -5
If you are a good welder you could build you own saw tub, but it needs to be very rigid. Moving the rock club shops 24 inch saw taught me a lot about bad engineering. If you can roll a slab saw on caster wheels across a floor that is not flat and all 4 wheels remain flat on the floor there is a problem. If I ever was to build a saw in a wooden box the support for the feed vice rails and the arbor would both be mounted to a heavy duty rigidly welded frame that would bolt into the saw tub. I would do the same if the tub is to be formed from sheet metal rather than plate steel. if it can flex it will and in a short time you will pay for a brand new saw many times over in replaced blades. What does the flexing do to the saw blade Lee? If the tub supports the blade arbor and both ends of the carriage rails then every time it flexes the blade goes out of alignment. Cupped blades that will eventually bind up in the cut is what will happen. Would you form the bed for a steel lathe out of sheet metal?
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,155
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Post by jamesp on Sept 8, 2014 2:20:51 GMT -5
What does the flexing do to the saw blade Lee? If the tub supports the blade arbor and both ends of the carriage rails then every time it flexes the blade goes out of alignment. Cupped blades that will eventually bind up in the cut is what will happen. Would you form the bed for a steel lathe out of sheet metal? Thanks Lee. So the rock rubs on one side of the blade and wears that face down making the blade cup ?
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Mike Menzie
noticing nice landscape pebbles
Member since October 2012
Posts: 96
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Post by Mike Menzie on Sept 8, 2014 13:54:37 GMT -5
The blade actually bends...which is cupping, yes?
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Post by Rockoonz on Sept 8, 2014 22:54:18 GMT -5
If the tub supports the blade arbor and both ends of the carriage rails then every time it flexes the blade goes out of alignment. Cupped blades that will eventually bind up in the cut is what will happen. Would you form the bed for a steel lathe out of sheet metal? Thanks Lee. So the rock rubs on one side of the blade and wears that face down making the blade cup ? The rock doesn't necessarily wear down a face but it pushes it over, gradually forming a dished surface. If you have ever spun steel it is the same process, only unintentional.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,155
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Post by jamesp on Sept 8, 2014 23:06:31 GMT -5
Thanks Lee. So the rock rubs on one side of the blade and wears that face down making the blade cup ? The rock doesn't necessarily wear down a face but it pushes it over, gradually forming a dished surface. If you have ever spun steel it is the same process, only unintentional. That shed light on it. I get it now Lee. Picture good , video better. Thanks.
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