The bump is significant and there is a lack of tension : the blade is raised less high and the pressure is stronger. The bump is weak and there is a lack of tension : the blade is raised slightly and the pressure is strong. Some tension devices have extensible rollers that allow to suppress the major levelling defects but it is necessary to press slightly as the roller can shear steel.
“To find the correct tension, you can start with the tension scale on your saw, but you will probably need to fine tune the adjustment. With the saw unplugged, increase the tension on the blade until pushing on the side of the blade with your finger using a moderate amount of force deflects the blade about a 1/4” from its normal position. When too much tension is put on the blade, premature blade breakage and poor tracking can occur, but most important, you can damage your machine by trying to make it reach a blade tension greater than the machine was designed to operate at. The answer is yes, so be careful not to over tension your bandsaw blade.
Even a low-end bandsaw blade tension meter can cost $300. If you use your bandsaw a lot or are doing delicate work, having the proper tension on the blade can be critical and the only way to accomplish this is with a bandsaw blade tension meter. With the bandsaw blade properly installed, and tensioned, and the blade guides properly set, the next issue is to make sure that the bandsaw table is square and level. We suggest that you go through the setup steps in this how to set up a bandsaw properly: the ultimate g guide before starting a new project and each time you change your bandsaw blade.
After getting the mill running, we could never get that blade to work. We ended up with tooth marks being lagging from one side of the cut to the other, approximately 3″ difference, the far side from the drive wheel being lagging. VERY CAREFULLY, move the string toward the drive wheel until it either touches both edges of the wheel or it touches one edge or the other of the idler wheel instead. You may need someone to help do this.
Hammer weighing 1250 g for blade thicknesses 1.65 mmHammer weighing 1500 g for blade thicknesses 1.65 mm. Hammers should have soft, rounded striking surfaces so they do not leave any imprints on the bandsaw blades, as this could negatively impact the service life of the blade. The blade lies correctly on the rollers and withstands the stresses caused by high feed rates.
how to level a bandsaw blade Related Question:
Why won’t my bandsaw cut straight?
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.
Where should a bandsaw blade sit on the wheel?
Make sure the machine is disconnected from the power supply. When tracking, you always want to make sure that the blade is sat on the crown of the wheel, with the deepest part of the gullet in the centre.
Why do bandsaws shake?
A common source of vibrations on commercial bandsaws is that the wheels are not quite round, or at least slightly off center. This is often caused by tires that weren’t evenly stretched when they were put on.
Why do bandsaws wander?
If the wheels are worn and do not have a distinct top to the crown then the blade will not know where to go, and may wander around. This of course can cause poor cut quality and difficulty in setting the guides.
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. On these low powered mills, the blade gotta be razor sharp..
Why is my band saw cutting at an angle?
A bandsaw has a spring that you tighten to keep the blade under tension. Your saw will probably have instructions for how tight to make the blade. This spring can loose its ability to properly tension the blade after some time, allowing the blade to twist in the cut.
Why does my bandsaw mill blade wander?
When you’re sawing a soft wood with hard knots, the engine will slow down each time you hit a knot. If the blade speed drops below about 5000 FPM, the blade will start to wander. The governor will kick in to get the engine back up to speed but by the time that happens you’re through the knot.