Replies

1. 
   Dave_Arbuckle | May 15, 2001 05:13pm | #1

   *
   P., you need to find out why the stock is contacting the blade plate, I think. Looking closely at the teeth, notice that they stick out further than the plate. Wood shouldn't be rubbing on the plate.

   Dave

1. 
   CStanford_ | May 15, 2001 08:09pm | #2

   *Absolutely correct Dave and why Teflon coated blades are so silly (although it's hard to avoid them these days). The only thing that should touch the wood are the teeth of the blade, and they're not coated.I suspect unacceptable blade runout or arbor runout. You might also be letting the stock slip a little as it's feed across the blade.

1. 
   Bob_Berner | May 16, 2001 02:13pm | #3

   *I don't have a Teflon coated blade, so this is just supposition on my part, but here is my theory. Dave is correct about the teeth being wider that the blade, but what about the wood that is removed by the tooth during the cut? There is no reason that the chips can't contact the body of the blade. This will increase friction and therefore require more power to make the cut. Granted it is a small effect but it is probably real. Also if only the teeth of your sawbalde contacted wood, why do you get pitch and resin buildup on your sawblades? I think the Teflon helps in reducing the pitch build up on blade which will also reduce friction and therefore buring of the wood being cut. As I said I don't have a Teflon blade nor have I looked closely at how they are coated so I may be off base here. Bob

1. 
   CStanford_ | May 16, 2001 02:59pm | #4

   *You should only get pitch and resin buildup in a narrow circular band right below the teeth and on the teeth themselves... anything else represents an out of tune saw, an underpowered saw for the cut, or high runout coming from somewhere.Pitch deposits down on the body of the blade well below the teeth is not a good sign.A powerful, well-tuned saw with adequate dust collection has to run well beyond the point at which the teeth become very dull to build up any serious pitch in my experience.

1. 
   Danford_C._Jennings | May 16, 2001 03:41pm | #5

   *P.,I have to agree with the above post and add that a warped blade will also cause this problem.Dano