Looking for a sawmill log carriage

[Wendelspanswick]

How do the blade guides work on a double cut saw, what stops the cutting pressure pushing the blade off the wheel?

[Graham w]

How do the blade guides work on a double cut saw, what stops the cutting pressure pushing the blade off the wheel?

 

The crown on the pulleys hold the blade in position with a good amount of tension because the middle of your band will centre itself on the highest point of the pulley, the more tension you have the less the band will be pushed back until you find the correct tension where the band will not move when cutting. You can put more tension on a wider saw meaning it can take more pushing force this means a wider band can cut wood faster with less deviation. A double cut works larger saws at higher tensions so this theory is worked from both sides and the band runs in the middle of the pulley. My Guilliet recommends 175kg per cm for saws so i like to run with 2300kg this is a slow cutting saw but cuts very well so well that it dosent need the guides when cutting with sharp saws, it is let down by the stenner rackbench that is easily bent when overloaded hence my interest in carriage mills.

Edited October 16, 2016 by Graham w
didnt answer the question lol

[Sion]

What Guilliet are you running with a Stenner rack bench? Thats a curious combination, is it home brew?

 

The guides on alot of wide band sawmills are now one sided too, I think they're called pressure guides. fitted on the inside of the blade they deflect the blade from its true line between the wheels outwards 10mm or so, using pieces of low friction/hard wearing plastic.