Details of the processing of tin will need a small jig from two pieces of plexiglass with holes for pins. The sheet metal of the workpiece is placed between the strips connected on the pins, and the entire package is clamped in the vise. Then you can operate a needle file or a file without fear that the item will get wrinkled.
P. MARACHEV, Perm
Recommend to read
WEIGHTLESSNESS… IN THE CLASS
The phenomenon of weightlessness allow you to demonstrate on a normal school lesson original instrument, developed at the physics Department of the Khabarovsk pedagogical Institute, the...
TO DRILL THE FLYWHEEL?
Drilling steel mechanical hand drill even in the upright position without special tools is not easy: need and pressure to create, and perpendicular to endure. What if you set one of the...
