As a rule, standard workshop clamps (F- or G-shaped) are small or medium in size. And sometimes you need a clamp larger and more powerful. In this case, it can be made independently using improvised materials.
For example, in this review, the master uses half the flywheel crown of a truck. If you have a whole flywheel available, then you can make as many as two clamps.
Also, for work, you will need other parts that can be machined on a lathe or ordered by a familiar turner. When all the blanks are prepared, the author proceeds to assemble the clamp itself.
The main stages of work
To the lower part of the crown half, the author welds a blank onto which the flange is put on (this structural element acts as the lower clamping jaw). A large elongated nut or sleeve with a thread must be welded to the upper part of the frame, into which a screw is then screwed.
Please note that the master welds the parts to rusty metal - possibly using special electrodes. But if you cook with ordinary electrodes, you first need to clean the edges of the crown with a grinder.
At the last stage of work, the master puts on a clamping penny on one end of the screw, and fastens the knob to the other. Welds seams with a grinder with a petal circle. If desired, the clamp can be primed and painted.
In detail about how you can make a large powerful clamp from a half of the flywheel crown with your own hands, we recommend that you look in the video on the site.
