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Reply by Tedstor

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Posted on bandsaw

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Tedstor

1369 posts in 1299 days


#1 posted 08-19-2012 07:07 PM

I assume its an older 12”?? I had one of those. It worked well, but getting the vibration to an acceptable level took some effort. IMO, you’ll never get the machine to pass the “nickle test”. But you can get it close. FWIW, most bandsaws shake a little, unless you spend a lot of money on the saw and/or parts or a lot of time tuning it to the nth degree.

Make sure the wheels are co-planer and the blade is aligned (to a reasonable degree). Also make sure the stand is good n’ sturdy. A good stand will absorb vibration, a junky stand will make it worse. I have a 14” Ridgid that vibrated terribly out of the box. I augmented the stand with 3/4” plywood and that stopped 40% of the problem. The rest of the problems were solved by balancing wheels and replacing the crappy stock blade with an Olson blade.

Blade- A blade with a crappy weld will wobble.

Tires- Old rubber tires? Tires can wear unevenly, making them lumpy. New rubber tires might do the trick, urethane are even better.

Belt- A cheap and/or old v belt can cause the lower wheel to wobble; thus the blade will wobble. Many will rec a link belt. I have had success with them too, but I think a good quality ribbed belt works just as well and can be found at a local auto parts store for $5.

Pulleys- The stock pulleys on those “12 craftys are not exactly high-end. It doesn’t take much for them to get bent. Even minor deviations will cause problems. And make sure the pulleys are properly aligned with each other. Some people like to upgrade to machined pulleys.

Wheel Balance- Remove the blade and spin the wheels. When they come to rest, mark the 6 o’clock position with a sharpie or chalk. Repeat the process 3-4 times. Are all the marks on the same spot? If so, the wheel is out of balance. Get some lead tape from a golf shop and stick it on the opposite end of the wheel. Re-test, check, and repeat until the wheel does not repeatedly come to rest at the same spot. You might want to remove and/or replace the tires before going to the trouble of balancing. There are other methods to balance, but this is a fairly good and inexpensive way to get it done.

Hope this helps


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