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
HANDLE COILS
Files generally are available without handles, and the latter may not be available at the time of purchase. To make them yourself is not everyone's strength. But this method is available...
THE ROCKET PLANE “THE DUCK”
According to the rules of the competition model rocket must use only during takeoff the thrust of a jet engine, and the descent of the lifting force of the aerodynamic surface. For...
