Andrew Joiner
05-22-2009, 1:45 PM
I just got a 21" Grizzly bandsaw. The factory 1" blade test cut's are great and the blade lines up to the thrust bearing fine. There's a consistent 1/64" gap to the thrust bearing on a full revolution.
I put in a 1/2" Timber wolf in and the back edge touches the thrust bearing and moves slowly forward (away from the bearing) about 1/32" maximum in one revolution. This happens gradually in several spots on the blades path. The weld area is flat and true for that 2 feet or so. The weld seems fine. The TW blade cuts about as smooth as the stock 1" blade but with less feed pressure.
The question is what tolerance is acceptable? If you order several blades are they all likely to have some front to back "wobble"? Is 1/32" or less "wobble" common?
Grizzly said they will take the blade back and pay for shipping, but I may just keep it for rougher cuts.
I put in a 1/2" Timber wolf in and the back edge touches the thrust bearing and moves slowly forward (away from the bearing) about 1/32" maximum in one revolution. This happens gradually in several spots on the blades path. The weld area is flat and true for that 2 feet or so. The weld seems fine. The TW blade cuts about as smooth as the stock 1" blade but with less feed pressure.
The question is what tolerance is acceptable? If you order several blades are they all likely to have some front to back "wobble"? Is 1/32" or less "wobble" common?
Grizzly said they will take the blade back and pay for shipping, but I may just keep it for rougher cuts.