Despite the fact that the clamps clamping the Cup is loosely fitted on the axis and not rotate as you tighten, it can be rotated together with the screw, damaging the surface of the fastened parts. This will help avoid two backing plates with the slots in the ribs strubiny, which can be manufactured from aluminum and even wood.
Recommend to read
SOLDERING IRON-“TELESCOPE”
No welding or modern technological methods of joining metal surfaces with a laser or super glue — not supplanted the old, but not aging method: solder. And it is promising new products,...
LAKE-“TELESCOPE”
Look at ordinary lake that we water the flower beds or the beds in the dry season: its construction, once born, has not changed. But whether so it is perfect that does not require...