Cast in many industrial products have long been used mortgages (anchor) bolts with special heads, such that not only pull, but rotate can’t.
With the advent of high strength composite self-hardening compositions that bolt you can “lay” in the body of the finished product (plastic or metal) and making it pre-nest, and then simonaityte.
Recommend to read
THE BEST PROPELLER FOR YOUR MODEL
Now, when the rules of the FAI, the weight of the rubber motor is reduced, and the number of rounds in the competition increased to seven, rotor group should be given maximum attention....
LAMP… FOR A QUARTER OF AN HOUR
The two elements 373, light bulb 3,5ВХ0,26A, a strip of sheet brass with a thickness of 0.5 mm (150x5 mm), cut cardboard (150X X200 mm), cotton thread, glue, a soldering iron and...
