Re-saw Fence

curiousgeorge · Post by **curiousgeorge** » Sun May 03, 2009 3:03 pm

jdramsey wrote:Nice job on the re-saw fence. Do you have issues with blade drift using that fence?

I haven't as of yet with this blade but, as with any fence, all you have to do is adjust the fence to allow for it.

cincinnati10 · Post by **cincinnati10** » Mon May 04, 2009 12:51 pm

jdramsey wrote:... Do you have issues with blade drift using that fence?

In ideal conditions, the blade drift angle is 0°. Blade drift is a created by the way the blade tracks through the saw. Geometric and dynamic factors like wheel alignment, wheel balance, blade tension, tire condition, blade alignment, etc determine drift. The fence does not affect it.

Standard procedure is to align and adjust the saw as close as possible to the ideal. THEN, since the wood is "forced" against the fence, to get the straightest cuts, the fence should be adjusted to match the drift angle.

curiousgeorge · Post by **curiousgeorge** » Mon May 04, 2009 1:28 pm

One more factor in blade drift is the set of the teeth. If the set is more on one side than the other the blade will pull to that side. This is the case on most stamped blades.

iclark · Post by **iclark** » Tue May 05, 2009 12:25 am

could someone explain how the incra fence system is adjusted for drift angle?

I seem to be missing an adjustment concept somewhere for the fence to the incra or the incra to the table.

curiousgeorge · Post by **curiousgeorge** » Tue May 05, 2009 1:00 am

iclark wrote:could someone explain how the incra fence system is adjusted for drift angle?

I seem to be missing an adjustment concept somewhere for the fence to the incra or the incra to the table.

1. Mount the fence to the table in a way to allow for the drift.
2. Shim the fence to allow for the drift
3. A combination of 1 and 2.
4. .....?

BigSky · Post by **BigSky** » Tue May 05, 2009 9:10 am

curiousgeorge wrote:1. Mount the fence to the table in a way to allow for the drift.
2. Shim the fence to allow for the drift
3. A combination of 1 and 2.
4. .....?

Only a fence designed for a band saw would have this feature. Is there an Incra fence designed to be used on a bandsaw?

ldh · Post by **ldh** » Tue May 05, 2009 12:15 pm

My 2 cents worth on blade drift today. I have always found it strange that we use a 3/4 to 1" thickness board to determine drift, set the fence to the drift and then start resawing boards of six inch thickness. I have found that if I capture (keep) the blade in a double bearing groove in the upper and lower backup and use ceramic or ball bearing guides and a good blade I don't have the blade drift problem. The SS bandsaw is ideal for this setup with its unique tracking system. I have re-posted (hope I don't boor anyone) some of the pics on the bandsaw setup. I have never fooled much with the Incra positioner so I bought the positioner and fence from Rockler last week based on what I have read in this thread. Looks like an interesting tool and Rockler had 15% off.

ldh

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curiousgeorge · Post by **curiousgeorge** » Tue May 05, 2009 12:53 pm

markfive510 wrote:Only a fence designed for a band saw would have this feature. Is there an Incra fence designed to be used on a bandsaw?

If you go to the Incra site you will find that one of the suggested uses for the original Incra Jig is for the band saw. It is not designed specifically for that purpose, but it should not be a problem figuring out how to shim the fence or mount the fence at an angle to the blade to allow for drift. Mind you the adjustment would have to be done for every blade change, but then that is true for any fence.