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Oldřich Rykr - etching logo

01.01.20 833x Read

Oldřich Rykr - etching logo

Tools: solution container, salt, nail polish, mini-brushes, insulating tape, battery (min. 9V), wires, 2 pcs. crocodiles, skewers + cotton wool or or earworms, acetone.

Procedure: Paint a logo or what we want to etch on a degreased blade with a small brush and nail polish. While the paint is drying, we will make a saturated aqueous solution of NaCl- common salt, which can be stored after application.

Glue around the dried picture el. insulation tape against possible splashes.

For the etching itself, I created a "widget" of clamps, wires and crocodiles, which I connect to the battery cordless drill. Apparently, even a 9V monocouple is enough, I have not tried… Preparation is ready and we can etch. Connect the plus pole to the carcass (blade) and the minus pole to the wad of the earbud, dipped in solution. Transfer the drop to the etched area and hold or move a little and spread the solution over the entire surface. The metal turns black, we can add a solution… Just a minute or two and the etching is done.

Wash under water, dry, tear off the tape, remove lacquer with Acetone. The etched object will be black,
For contrast, it is possible to leave or polish with a rag disc with abrasive paste to shine the blade. For beginners better try, maybe in the place of future grip than to spoil the blade !!! Note: Chlorine is evolved during electrolysis, so do not “sniff” and vent. Also worth considering using glasses ...

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