This article is from the Woodworking FAQ Collection 2, by multiple authors.
From: pete@Octopus.COM (Pete Holzmann)
Date: 24 Oct 90 14:08:19 GMT
Wow! There sure are a good bunch of bandsaw junkies here! I wonder if
y'all have experienced something like my situation. I sure could use some
I've got a taiwan clone bandsaw. I get a significant amount of vibration,
apparently due to out-of-roundness of the upper tire. Possibly the lower one
as well. Upon examination, I find two sources of the out-of-round problem.
First, the metal wheel itself was balanced by drilling dimples in the
rim, UNDER the tire. Is this normal? Is this horrible? If horrible, is
there anything I can do to correct the problem?
Second, the tire itself is not of completely uniform thickness as you go
around the circumference. Partially because it is difficult to stretch it
perfectly evenly as you put it on.
Seems to me that 'grinding' down the tire high spots ought to help. I've
never had much luck 'grinding' rubber; what kinds of things do a good
job of this? (I noticed one poster mentioning a chucked-up sanding pad.
Don't have one, although they're cheap; is there anything else that works?)
I guess the thing that concerns me most is the (apparently) low spots
in the tire due to the dimples: the dimples are shallow cones about 1"
in diameter (look like the pattern that would be made by the end of a
gigantic twist drill).
Am I looking in the wrong direction? Maybe this is a minor thing, and when
I have tensions, speed and alignment right I'll be happy? The 'problem'
with the saw right now is that there is pretty significant (1/32" or so)
sideways chatter in the cut.