Gallery, Projects and General > How do I??
Making a slitting saw arbor
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Chuck in E. TN:
Thanks for your input, Bogs. Aways enlightning.

Chuck in E. TN
lordedmond:
I too have a couple of slitting saw holders and a few shop made

whilst the body runs true as does the did that goes ing to saw "Bogs 0.998 on his CoC " all my saws run eccentric , the side face is ok , is it an inherent fault with these saw or what ( its the same from el cheapo to the better ones )?


Stuart
Bogstandard:
Stuart,

I think that eccentricity is caused by the grinding wheel, so the first tooth ground will be perfectly on size, then the further it gets around the saw blade, the teeth get minutely longer because the grinding stone has worn away a little, so doesn't grind as much off.

I get it when I resharpen my saw blades.


John
spuddevans:

--- Quote from: lordedmond on May 22, 2011, 11:50:54 AM ---I too have a couple of slitting saw holders and a few shop made

whilst the body runs true as does the did that goes ing to saw "Bogs 0.998 on his CoC " all my saws run eccentric , the side face is ok , is it an inherent fault with these saw or what ( its the same from el cheapo to the better ones )?


Stuart

--- End quote ---

My mandrel also seemed to run out of true, then I discovered that there is a little play in the fit between the blade and the mandrel. The solution I came up with was to just nip up the tightening screw, run the mill at a very slow speed and very gently touch the rotating blade off a piece of scrap ( our in my case the workpiece, which often becomes scrap at some point ) this then centers the blade on the mandrel. Then just stop the mill and tighten up the holding screw.


Tim
lordedmond:
Thanks for the answers John and Tim

John looks like I need to fire up my Dekel clone and sort out a jig for the blades.


Tim tried that no improvement the shop made one was spot on and sized for a particular blade ( a good one ) and it still ran out


So I am coming to the conclusion confirmed by John that the blades are eccentric

Stuart

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