Thursday, January 3, 2013

Home Made Cut-off Blades for the Lathe

One of the holders which came with the quick change tool post was a cut-off tool holder.  These are used to part off a piece after its been turned.  You can also use them to cut narrow grooves for anything.

Usually the are made with a carbide tip on a steel shank.  An idea came to me the other day.  Why not cut out a rectangular section of a scrap circular saw blade?  Cut it so that a carbide tooth remains on the end, and you have a great edge and since the teeth are thicker than the blade, it won't bind either.

The result:

This last picture shows some grooves I began to cut.  I will be parting off three segments, but first they need a hole bored through for a project...

Not bad.  The cutter took a minute to cut out with an angle grinder and the carbide tooth cuts the aluminum like butter.  Nice shavings come off.

This worked so well that I will have to find a thicker blade to make a cutter which can handle deeper cuts.  Its an excellent reuse of old saw blades, which often still have a few sharp teeth to use.

No comments:

Post a Comment