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This section contains some of our most common questions about cutting problems due to blade selection, material, or equipment set-up. Check back often as new questions are posted periodically.

Sawing Melamine

* Q. Why does my material chip on the bottom of the sheet?

A. Chipping the bottom side of the material is generally caused by poor blade selection for the application. Melamine should be cut with a negative rake saw and tooth spacing should not been more than 3/8 of an inch.

* Q. Why does my material chip out at the end of the cut?

A. This is generally caused by poor blade alignment to fence. In some cases poor arbor and or spindle bearings may be the cause of chipping or breaking out the end of the cut. Also, it is helpful to have a close fitting throat plate so the material is supported on the bottom as close to the cut as possible.

Sawing Acrylic

* Q. Why do I get heavy kerf lines when the blades exits the cut?

A. In most cases, poor blade alignment or SKEW, is the common cause for heavy kerf lines. Consult your machine’s manual for proper machine cutting alignment, or call General Saw at 1-800-772-3691 for technical assistance.

* Q. Why does the blade cut clean on one side and not on the other?

A. This problem is commonly caused by a problematic blade. Side clearance, blade dish, or improper tension are three primary reasons why this problem may occur while cutting.

General Sawing

* Q. While ripping, I experience burning of the material. Why?

A. There are 4 main reasons for burning of material: 1.) Your saw is improperly aligned with the fence, 2.) The blade may be heeling, 3.) The blade may in desperate need of sharpening, 4.) Or, the stock may have shifted off axis during the cut. Tune the tool, have the blade sharpened or replaced, and use a feather board. Feed at a uniform rate, that's not too slow. We suggest using a 50-tooth combination blade for excellent results on just about anything.

* Q. I'm getting blade vibration when my saw reaches maximum RPM.
     What is the cause?

A. First check to see if the blade is mounted properly and the arbor and collars are clean. Second, check the arbor to make sure it is running true and its not bent. Also check your drive belt for slippage.

* Q. I noticed that my cut is wider than the blade kerf. Why is that?

A. The number one reason for why the cut is wider than the kerf is the alignment of the blade to the fence. Also, make sure you are feeding the material parallel to the blade.

* Q. My blade seems to be cutting very heavy. Why is that?

A. There are several reasons why you could be getting a heavy cut: 1.) You are cutting with too many teeth. 2.) Your cutting speed is too slow. 3.) Your hook angle is incorrect. 4.) You are using a blunt saw blade.

* Q. I have broken the neck of a tooth. What causes this?

A. Sounds like your blade is set too high. A good rule of thumb for blade height is to set your blade so that the primary blade gullets clear the top of the workpiece. With a sharp blade and well-tuned saw, there is minimal benefit to a high-set blade. It is also important to mention that a consistent feed rate speed for the hook angle will also help you avoid this problem.

* Q. I am getting a coating of resin on my blade. Why?

A. Two main reasons for resin build up on a blade are: 1.) The RPM is too high and it is creating heat between the blade and the material. 2.) You are using a blade with too many teeth for the application. The excess friction of a resin coated blade causes heat build-up and carbide break down, so it is important to keep your blade clean between uses.