70 1 2 bandsaw blade metal cutting
A bandsaw blade has to be matched to the job in hand and to a lesser extent to the size of the bandsaw. You would not try to rip a 2" board with a tenon saw nor crosscut plywood with a greenwood saw. You would select the right blade for the job and the same is true for a bandsaw. Just because the machine is powered does not mean that one blade will cut everything it wont. So we need a selection of blades dependent on what we are doing. Fortunately despite there being a vast array of blades to choose from we can do 99% of our normal work with just two or three different blades. Blade width Given that the challenge with a bandsaw is to get it to cut straight it is easy to think that the wider the blade the better and to a certain extent this is true. You are likely to get better results with a ½" or ¾" blade than a ¼" one. But the temptation is to go as wide as the wheels will take. Which is an inch or more.
Tension: Adequate blade tension reduces the blades tendency to lead erratically under thrust. I have found that the standard tension gauge is not accurate. It is better to use a little more tension than indicated. You can check it by opening up the thrust bearings and lateral guides. Back off both above and below the table so they do not contact the blade. Crank the tension gauge to the desired setting. Give the blade a sideways nudge about halfway between the upper and lower wheels. The blade will deflect easily for a short distance. This sideways movement should be 1/4". If you push harder it will bend farther but there is a distinct point where it quits deflecting easily. If you can deflect more than 1/4" then add tension until this deflection is 1/4". Stock Control: How does one cut straight lines? Answer: find out how the saw wants to do it and do it that way.
Most Popular This Week
Invest the time to do your research and make a wise decision. A bandsaw is more versatile than it appears at first glance. The bandsaw is one of those specialty power tools that does a job that no other tool can do as well. In the case of the bandsaw that job happens to be cutting detailed and accurate curves in wood or metal. The fact of the matter is a good bandsaw has more uses than simply cutting curves. In a home shop it can be used for: resawing thin strips from larger pieces of wood ripping small pieces of stock even cutting tenons and some rabbets However once you start looking at the options you realize that there are a variety of styles and sizes available. So... how to choose the best model for your needs? Bandsaw Type These saws fall into two main categories: floor stand models (also called cabinet models) and bench top models. The floor stand models generally larger in size are what you would probably find in professional shops.
Then you will have to run all of the cut lumber through a planer to even it out. This not only wastes material but it doubles your man-hours which in turn costs money.As long as the wood you are cutting is smaller or softer then you can go with a smaller bandsaw. Matching the blade size up with the density of the wood means that you can have precision cuts each and every time. Regardless of the density the one thing to remember with this type of saw is that the blades need to be sharpened regularly. A dull blade will slow down productivity and damage the wood. It is common to go through 3 to 6 blades in a days worth of cutting. Sharpening these blades is best left to an expert unless you want to invest in the extra equipment necessary to do it yourself.