I want to share with the readers one very simple method of drilling holes in the glass, which I was taught many years ago Professor N. A. Artemyev. The method is attractive because it does not require special machines, at the same time allowing you to drill glass of almost any thickness. The edge of the hole can be as close to the edge of the glass; the method also allows to cut out rings and circles of different diameter.NOT AFRAID OF SPLINTERS
The burned out bulb is often so “strong liking” in the cartridge that could burst when twisting from the attached effort. However, the fragments do not scatter and don’t have to collect, if prudent to put on it before unscrewing plastic bag: everything will remain in it.
Both designs are quite small locks. On their basis it is possible to create other systems, more sophisticated. The first castle shown in figure 1, suitable for flat products — folders, portfolios. The second covers boxes, boxes, boxes with small tool (Fig. 2).
