To fix the drawing paper on the drawing Board, a Board which is made of particle Board, is difficult. For anchoring one corner you have to use some drawing pins, as they bend. If you use a magnet like a hammer, then every button, holding it will be included in the Board and fix the paper.
A. PROKOPENKO, Kiev
Recommend to read
Mini tractor: from design to plowing
"Manual labor — to the shoulders of machines!" — under this headline, materials from the All-Union Conference of VISKHOM named after V. P. Goryachkin were published in our magazine (see...
THE DUO OF GATES WITH A WICKET
Modern mansions of wall solid concrete or stone deaf fences, and the usual plots, usually surrounded by a light net or stamenkovi fences. The choice of design of the gate for...