One time I urgently needed to draw a charge, and at hand, no needle to scratch or ruling pen, although the lacquer was. Then decided to fill them inscribed with the rod of a ballpoint pen. Rinsed it, squeezed out of the wire ball filled (though with difficulty) varnish – track was surprisingly smooth. Further recording head moved in a glass pipe length 10 cm, ppotiv rubber ring. Easier to fill, but draws like a technical pen, not overjoyed.
E. HELBLING, Donetsk
Noticed mistape? Highlight it and press Ctrl+Enter, to inform us.
Recommend to read
Clutch pencil, calculated on a fat pencil, can find unexpected applications. For example, help in cases when a small screw you need to tighten in tight spaces; turn into a ballpoint pen,...
If the empty tube of toothpaste to fill the rear end with petroleum jelly or machine oil, and the tube to make a hole and feed it through the rod from a ball pen, as shown in the...