If you want to cut a round hole in the plywood or other rigid sheet material, but no jigsaw or handsaw pointed, easy to assemble witty prisposoblenie that will replace these tools. Only need two metal cores, one of which is pointed, the other sharpened like a cutting torch. Clamped in the vise at the required distance from each other, the first rod will serve as the axis on which will be pressed to rotate the plywood on top, and the second is from the bottom to cut the necessary hole.
Recommend to read
Dump shovel
It would seem that a shovel is such a simple tool that changing or improving its design is hardly possible. A handle and a blade—that’s the whole device. Nevertheless, there are many...
FOR THE DISCO? FOR THE ENGINE!
Strobe and underlying his actions the same-name effect find application not only in discos, no matter how popular, attractive ones. And technology is no exception. How to make strobe...
