I think that to get firmly entrenched in the Board Kuhlman button convenient this device. The sharp edge of a metal Cup, you can easily pick up a hat of any button. A slight twist — and the “prey” will be in the trap, and attached to the bottom of the magnet (for example, from the old dynamics) will not allow the buttons to be scattered randomly. N. ANANIENKO, Lviv
Recommend to read
THE CORRUGATED BOARD MOTOR
Not so long ago in the journal "modelist-Konstruktor" was about the simplest model of a glider made from a conventional packaging corrugated Board material although not aeromodelling,...
WAKE TAPE RECORDER
I designed a digital timer, which wrist watch, MONTANA, has a great standby time (up to 24 hours), good precision (the error is only a few seconds per day), simplicity, performance and...
