Device for spiralno lines are usually quite complex in design, can not be said about the method of its receipt. A circular boss fixed to prepared for the drawing surface; the wound on the boss thread, and the other end tied on pen or pencil — that’s all, “device”, which is clear from the figure.
Recommend to read
CONVENIENT SOLDERING IRON
The soldering iron is any homebrew. But those who have to deal with modern electro - and radio equipment, this tool is something special. And the requirements for it are quite hard: with...
SUN LOUNGE
Would you like to relax and indulge in sweet idleness, lying under the sun in a comfortable lounger in a cozy corner of your country yard? Tempting, right? To make this happen, you'll need...
