I had an incident on my 14" Rikon bandsaw a couple of weeks ago. I had a 4 TPI blade that possessed aggressive teeth installed for cutting larger logs in the rough. During that time frame that particular blade was installed, I attempted to take a short cut and use that blade to cut a segmented glue up consisting of various densities. About 1/3 into the cut, a tooth grabbed and the entire operation slammed to a halt, literally. I struck the off button as fast as I could reach it so as to not burn my belt.
Well, ever since then running my 10 TPI blade again, the table will vibrate ever so slightly periodically during operation. Approximately 30-45 seconds after the machine is turned on the table will vibrate just enough to shake my hand, like I have the tremors, if resting my hands on the table. It will not do this immediately after motor and blade has reached full rpms, which on this saw has always been almost immediately. It takes a little while before the vibration will start to occur. Like it has to build up its frequency as its resonating through the machine.
I took both wheels off and checked my shafts for disruption, neither look like they were damaged or bent. The pair of bearings in both wheels are intact and installed tightly with no play. I checked the tires very well for some slight bump that could have been created during the incident, all seemed as smooth as they always have. I ran the motor pulleys without the belt installed, its so smooth you could not tell it was running. I ran the lower wheel with the belt installed but without the blade in place - the lower wheel ran really smooth with no apparent bounce or otherwise.
Of course, I could not figure out a safe way to run the upper wheel without installing the blade. But after everything was buttoned up, the saw still has the before-mentioned vibration. Not quite sure how to pinpoint where its originating from. The blade itself is a 10 TPI 3/8" blade and the weld is really smooth and the entire run appears to be without any imperfections or kinks.
Just strange. I never had this issue until my incident.
Apparently something was damaged but it is so superficial, I cannot without engineering equipment, locate it.
Any thoughts?
Oh yeah, let me throw this out there--> It cuts just as straight as it always has, very straight...no issues in that arena, its just the slight vibration emanating from the table is just ANNOYING a perfectionist such as I!!!!
Well, ever since then running my 10 TPI blade again, the table will vibrate ever so slightly periodically during operation. Approximately 30-45 seconds after the machine is turned on the table will vibrate just enough to shake my hand, like I have the tremors, if resting my hands on the table. It will not do this immediately after motor and blade has reached full rpms, which on this saw has always been almost immediately. It takes a little while before the vibration will start to occur. Like it has to build up its frequency as its resonating through the machine.
I took both wheels off and checked my shafts for disruption, neither look like they were damaged or bent. The pair of bearings in both wheels are intact and installed tightly with no play. I checked the tires very well for some slight bump that could have been created during the incident, all seemed as smooth as they always have. I ran the motor pulleys without the belt installed, its so smooth you could not tell it was running. I ran the lower wheel with the belt installed but without the blade in place - the lower wheel ran really smooth with no apparent bounce or otherwise.
Of course, I could not figure out a safe way to run the upper wheel without installing the blade. But after everything was buttoned up, the saw still has the before-mentioned vibration. Not quite sure how to pinpoint where its originating from. The blade itself is a 10 TPI 3/8" blade and the weld is really smooth and the entire run appears to be without any imperfections or kinks.
Just strange. I never had this issue until my incident.
Apparently something was damaged but it is so superficial, I cannot without engineering equipment, locate it.
Any thoughts?
Oh yeah, let me throw this out there--> It cuts just as straight as it always has, very straight...no issues in that arena, its just the slight vibration emanating from the table is just ANNOYING a perfectionist such as I!!!!