What if you need to draw a circle, and a compass at hand is not! To get out of this situation by making a simple compass of the bent and strapped to the pencil in the right place for a stylus pen, as shown in the figure.
Recommend to read
DIGS WITHOUT LOSSES
The structure I'm going to talk about could be called a potato harvester, as it consists of several relatively independent units.
The potato digger is designed primarily for coupling...
ONCE AGAIN, THE “PISTONE”
Article V. Minakova, "Secrets of the new "piston", published in the "Modeller-designer", No. 12 1994, aroused great interest among rocketmodeler. It is available for the first time in...
