One who often works with paper and ink, it is recommended to do simple drawing tool simplifies many design works. In principle, it is a cross between a poster with pen and brush. To make it, you need to whittle out wooden planks a simple holder, made of tin to cut two plates and to procure a few foam strips. How is going to “pen” it is clear from the figure.
Recommend to read
“SEA SERPENT” FOR INDIA
Antisubmarine warfare in the postwar years in the Soviet Union has always paid great attention. This goal was created not only surface ships, but also planes, it is Sufficient to recall...
PISTON — JET
Every year fewer and fewer aircraft with piston engines. Lightweight, economical running on cheaper than gasoline, fuels, jet engines replacing piston even from agricultural aviation....
