I put a new blade on my band saw yesterday, and I think the guides were out of alignment and bent the blade. The rubber on the upper wheel did come off, but the blade is nice and tight so I don’t think that is why the saw is losing power when I start to resaw. Even if you are using a fine-tooth blade, if it’s sharp, it should still resaw stock that narrow without any difficulty.
On a typical wood or metal cutting blade the hook or of point of the blade should be pointing down for a vertical blade bandsaw, or for a horizontal blade saw the hook of the teeth should be pointed such that they enter the workpiece first as the blade moves. During regular cutting on a well set up bandsaw the blade will move or bow backwards a bit as you press the workpiece into it. The side guides will assist in keeping the blade cutting straight, but they are not an iron lock on the blade forcing it to cut straight.
The bandsaw is useless – and dangerous – if the blade keeps slipping off. If your blade slips off after you exert additional pressure, yet the blade isn’t dull, then your blade may be falling off of the rubber tires. The last possible reason why your bandsaw blade keeps coming off is from wheel wobble.
bandsaw blade stops when cutting Related Question:
Why is my band saw not cutting?
Band Saw: Why won’t my band saw cut straight? When the band saw cuts crooked, a dull blade, improper feeding, loose blade tension or not using a work piece guide could be the cause. Use the rip fence or miter gauge to guide the work piece uniformly through the cutting blade to make straight cuts.
Why does my bandsaw keep jamming?
If there are too few teeth in the cut (teeth are too large), this will also lead to teeth stripping and cracks from the gullets. Not enough teeth also cause jamming and sometimes distortion to the product you are cutting, especially thin walled pipe.
How much tension should a bandsaw blade be?
For carbon steel toothed blades (cutting blades) this is typically 15,000 to 25,000 PSI. Slitting type blades typically are tensioned in the range of 12,000 to 20,000 PSI. In general bandsaw blades are never tensioned past 35,000 psi.
What causes bandsaw drift?
Drift is cause because the blade buckles under the load. You can see that by stretching a ribbon between 2 points and applying a pressure to one of the edges, it will turn sideway easily. A sharp blade and high blade speed will help a lot with that.
Why is my bandsaw blade twisting?
The difference between the steak and the bandsaw is where the steak knife is short and thick, the bandsaw blade is generally long and skinny. This becomes a problem because it is possible to push hard enough on the blade to cause it to twist left or right.
How long should a bandsaw blade last?
On average your bandsaw blade should last 6 months to as long as a few years depending on what your cutting with it. Make sure to match your blade strength and quality to the project and material your cutting.
Why does my bandsaw blade wobble?
The blade on a saw left idle for long periods of time can leave an impression in the rubber tire which might cause erratic tracking. Purchase and install aftermarket replacement tires. (Search for “bandsaw tire” at woodcraft.com.) If you still see a back-and-forth motion, the culprit is probably the wheel itself.
Why are my bandsaw cuts wavy?
Re: Band saw Cutting Wavy Cuts. The clasic cause for wavy lumber is pushing a dull blade past it’s limits. Sharp don’t get it.
Why does my bandsaw blade burn the wood?
A majority of issues with wood burning is because of a dull saw blade. These blades may not be sharp enough to efficiently cut the wood, and thus create enough friction to heat and burn the wood. What is this? Dull blades make it more challenging to cut, which causes friction as you pass the wood through.