23-10-2013, 05:33 PM
He sounds like a snake oil salesman Col, don't try the gullet halfway across the band wheel trick on a large bandsaw, it could cost you an arm and a leg or an arm or a leg, most of the stuff he says is contradictory.
The only safe way to decrease a cutting radius is to use a narrower blade, with an appropriate feed rate.
The band wheels are normally crowned, that's what keeps the band on the wheel, the tension across the band varies because of the crown, not sure about those small blades but large blades are roller tensioned to suit the crown, if they weren't then premature cracking would occur across the blade.
All that blade guides and friction he was on about, well I'm not so sure, roller guides if set up correctly produce very little friction, same with flat composite guides such as Chako etc.
If the bandsaw makers instructions are followed then any saw will cut straight with a suitably serviced band and a proper feed rate providing the saw hasn't had any abuse and the guides,tension,tracking etc are set ok.
Lawrence.
The only safe way to decrease a cutting radius is to use a narrower blade, with an appropriate feed rate.
The band wheels are normally crowned, that's what keeps the band on the wheel, the tension across the band varies because of the crown, not sure about those small blades but large blades are roller tensioned to suit the crown, if they weren't then premature cracking would occur across the blade.
All that blade guides and friction he was on about, well I'm not so sure, roller guides if set up correctly produce very little friction, same with flat composite guides such as Chako etc.
If the bandsaw makers instructions are followed then any saw will cut straight with a suitably serviced band and a proper feed rate providing the saw hasn't had any abuse and the guides,tension,tracking etc are set ok.
Lawrence.
