In No. 12 “M-K” for 1984 described how to lengthen short pencil cut with a thin-walled tube. I’m here for several years are not a pipe extender, and a cap from a ballpoint pen. Pencil it lasts very well. When you are finished drawing, I put the cap on the sharpened part of the pencil to protect the lead from breakage. If the cap will be too big. the pencil should be screwed a strip of paper — it compensates for the gap. K. BARSAMIAN, Yerevan
Recommend to read
THE GRIP ON THE LEASH
Bench drilling machines (such as NA-10, NA-12), as a rule, is at any station of young technicians in every school workshop. There are some in our school (I work as a teacher). And once a...
QUIET “LITTLE ONE”
Most amateur constructors are constrained not only in space (usually they have only a small corner in their apartment for pursuing their favorite hobby), but also in time (they can...
