To know the exact diameter of the wire will fail, and no micrometer or Vernier caliper, if you use … normal range.
This is quite tightly wound on the rod a small number of turns of wire, then measure the width of the winding divided by the number of turns: the number obtained will be the required diameter.
Recommend to read
ACCURATE ADJUSTMENT
Fifty meters distance, but still ten before entering the starting line — the distance the self-propelled sudomodel must pass like a ruler. The slightest error in the adjustment would...
HANG FROM NAIL
Sometimes to connect two devices or articles required joint called a swivel. It provides independent rotations of one part relative to another. The swivel is often used in conjunction...
