The one who often have to use a vise knows that the most difficult thing is to hold them a wedge-shaped or cone detail: when processing it loosened and slips out. However, if you apply a semi-cylindrical auxiliary plate, the problem will be solved: surface it is firmly pressed against the cheek of the wedge or cone, and its spherical surface are well dock with a sponge — holder in the vise will be reliable.
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UNCOMFORTABLE — COMFORTABLE
A simple device for carrying a wide sheet materials are easy to make yourself, having at hand two, tee, four corners and three or four water pipe section.
Electronic ignition for “Voskhod”
In the second issue of "M-K" for 1976, I read an article "Electronics on a Motorcycle" about an electronic ignition system. It has a DC to AC voltage converter. This circuit requires a...
