At small works use a magnifying glass, placed for convenience in a frame of vinyl plastic. In a square plate, 4 mm thick, cut a circular window with inside recess (groove) in which the lens is held securely enough. And for protection from scratching the glass rolled leather sheath in which the plate is secured by a rivet. In the plate made a few cuts-snags — thanks to them, the lens is easily removed from this soft box.
O. EVDOKIMOV, Saint-Petersburg
Recommend to read
THE SEVEN-SEATER “MOSQUITO”
The car, which will be discussed, began to make acquaintance of mine in the late 1980s, when the automotive abundance was not far off, but we did not yet know. However, as soon as he...
SKIING IN THE SAIL
The desire to ski "with the wind" makes us resourceful athletes to invent a new sport: racing on skis towed behind a motorcycle (skijoring), boat and even horse. Today, it seems we are...
