
For fine edits slates sharpened pencils designers and architects typically use fine-grained sandpaper. But it may not be in the right moment at hand. Then I do the just use for this purpose a matchbox: always available, convenient, and the result is not worse. Gravityzoo-impromptu to make you less than a minute, even to glue nothing. The bottom wall of the lid box is cut, bend the top half and walls with arch beef up. The resulting “accordion” put in a match box-boxes (in the figure it is clearly shown) — it is well kept there as a spacer. I think additional explanation is not required.
E. SAWICKI, Korosten, Zhytomyr region.
Recommend to read
RESCUE CLIP
How to be if urgently need to carry out drafting work using ink, a special ruler with a raised above the paper edge among the tools was not there! A way out of this situation is shown in...
TRACTOR FOR PUPILS
Young inventors from the village of Enem, Krasnodar territory familiar to readers of our pages have already been published diagrams and descriptions of the designs, created with their...