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
POURS MEMBRANE
Experienced gardeners watering the beds in their gardens and backyards only warm water supernatant. To do this, they fill placed on the site of the barrels in the morning and consume the...
WASTE – IN THE CASE
Cutting plywood or plastic — NV always bargain waste. See peat do you have idle remnants of any previous cutting? If there is trim in the form of a quarter circle and two triangles, it...
