Bike pedals used to put a metal screw cap to protect the bearings from contamination. Now, instead, use the plastic plugs, which are often lost. Rescue plastic or nylon tubes from medical bubbles. Such substitutes being kept quite steady.
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IF NO CLAMP
Support the work piece on the table, the workbench, impact glue sticks, drill the plate pack — in these and many other cases not to do without clamps, but not one, but several and...
The Yak-11
In 1946, first flew double an educational-training plane Yak-11, created on the basis of the Yak-3, but with motor air-cooling, ASH-21. Its armament consisted of a synchronous UBS...
