In the processing of flat pieces cut from sheet materials: soft metal, plastic, plexiglass — sharp edges it is desirable to remove or to blunt (to make the chamfer). The simplest tool for this is easy to do from steel strips with a thickness of 2-3 mm. in the Middle of the short sides cut with a hacksaw, and then sharpen by needle file corner; bend, as shown in the figure. Now, having a sharp groove along the edge of the plate, get two neat bevel from both sides.
Recommend to read
SECRETS FLAPPING FLIGHT
...Model takes off from any position. It was enough to tighten the rubber motor, and two-winged "bird", vigorously rebounding wings, began the rapid acceleration into the sky. She looked...
TWO CYLINDERS FOR THE FOUR WHEELS
to Build a simple, unpretentious and reliable car I can say, came from humble circumstances. In the late times of General scarcity, I bought a well-worn "Zaporozhets", which stood more...
