Power Hacksaw

This power hacksaw was originally build many years ago from a set of castings by a former colleague's grandfather but it was in a rather a sad shape when I acquired it.  Apart from the usual rebuilding and cleaning up, I added a carrying handle and I relocated the handle above the saw frame.  Now, the reciprocating saw assembly no longer hits your fingers so that you let go of it and drop the saw onto the job!

Procedure of the Cutting Circular Material

The power hacksaw is easy to use. Firstly, the material is fixed in the vise of the hacksaw at the desired length. A switch of the hacksaw turns on, and lowers the blade slowly on to the material. When the material is finished cutting, the hacksaw stops automatically.

Fig.2, Fix of Material A material is fixed to suitable length.

Fig.3, Cutting A switch is turned on, and when theblade is lowered, and the material will be cut with the saw stopping automatically.

Fig.4, Cut Material The material cut by the hacksaw has a rough surface. It is usually finished with a lathe.

Fig.5, Cut Large-sized Material The hacksaw can cut off large sizes material, though it may take some time to do so. .

Power Hacksaw

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Cut Circular Material

When cirtcular material is cut, a hacksaw, shown in Figure 1, is used. The hacksaw has a blade, which has reciprocating motions. The fixed material on the hacksaw is cut off as a result of the blades action.

Build a Powered Hacksaw Like a Band Saw

These Popular Science plans are for building a powered hack saw, similar in function to a metal cutting band saw.

Hacksawing is the one onerous shop job, and before the band saw there was no inexpensive and readily available power tool to ease the sweat. Commercially made power hacksaws are costly and aren’t found in most home shops. Here, however, is a new answer.

After several years of building and experimenting, Popular Science experts have come up with a simplified design for a homebuilt power hacksaw at a cost that makes it a practical power tool for any shop. All parts, except for the motor land pulley drive, can be assembled for less than $20. Any 1/2-hp. motor will run the machine. Any standard 12” hacksaw blade can be used in it.

In speed, accuracy, and capacity, the saw rivals even big commercial machines. It will cut stock of any size and shape up to 3” high and 4” wide. In tests, it proved so precise it sliced off disks from a solid steel bar as thin as .050”. The secret of the saw’s low cost is the use of stock materials plus a pair of old automobile connecting rods for the main rocker arms-the heart of the machine.

Rocker-arm action is key to the saw’s simplicity and accuracy. It keeps the blade rigid and at the same time lets it move back and forth parallel to the base.