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craftsman 1942 scroll Saw


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Welcome to the Village! Chances are you do not have enough tension on the blade. Blades need to have a high tension on them or they will flex when cutting. When they flex they will break. Your saw should have a way to tension the blade, usually with a knob or lever. If not, it will make a nice boat anchor. Can you post a picture of your saw or maybe a model number?

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Many if not all of the old scroll saws used a spring to tension and pull the blade up, and a reciprocating mechanism to pull the blade down. If the blade jams in the work, the spring isn't sufficient to pull the blade back up. The reciprocating mechanism continues to push the blade up anyway, and buckles the blade, resulting in blade breakage. The newer style scroll saws have two powered arms, one moving each end of the blade, that work together to both pull and push the blade together, reducing the tendency of the blade to  bend or buckle. There is also a blade tension adjustment that truly maintains a constant tension of the blade.  This type of scroll saw was a total game changer over the old spring return type scroll saws. You can use much smaller blades with these newer saws and achieve long blade life with very little blade breakage.

Charley

 

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On ‎5‎/‎15‎/‎2018 at 5:52 AM, CharleyL said:

Many if not all of the old scroll saws used a spring to tension and pull the blade up, and a reciprocating mechanism to pull the blade down. If the blade jams in the work, the spring isn't sufficient to pull the blade back up. The reciprocating mechanism continues to push the blade up anyway, and buckles the blade, resulting in blade breakage. The newer style scroll saws have two powered arms, one moving each end of the blade, that work together to both pull and push the blade together, reducing the tendency of the blade to  bend or buckle. There is also a blade tension adjustment that truly maintains a constant tension of the blade.  This type of scroll saw was a total game changer over the old spring return type scroll saws. You can use much smaller blades with these newer saws and achieve long blade life with very little blade breakage.

Charley

 

That is a great answer. I think you nailed it

Dick

heppnerguy

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