In cases when you want to prevent turning of the screw, screwed into a Board or plywood, I use a very simple way. Of stiff wire or a nail, whose diameter corresponds to the width of the slot of the screw, hollow out a U-shaped bracket and pin it as shown in the figure. Upon entering the slot, it securely holds the screw.
S. DUBINSKY, Kiev
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CASE FOR SOLDERING IRON
...can be made from scrap pipe of appropriate diameter. The case will protect the working part of the tool during storage. S. CHIRIKOV, Tallinn
All-terrain-snowmobile motorized skis “Blizzard”
In the snowmobile "Blizzard," which I designed based on many developments published in "M-K," elements of the schemes of classic snowmobiles, "amfitrak," snowcat, pneumatic sleds, and aero...
