If you cut the old metal pipe of large diameter to be sawn along, and then riveted with their convex sides to each other, get both and convenient stand for pens, brushes, pens, and heavy-duty clamp, easily holding even the old electric roller blind.
Recommend to read
“SOFT” CLUTCH
To connect the motor shaft with the driven shaft in the mechanism is never easy. For example, electromotor and water pump also require accommodation on a single rigid frame, which would...
RC “TRAINER”
Simple, easily repaired, volatile, inexpensive... That's only part of the requirements for training RC model aircraft. These requirements are fully satisfied "Trainer-RC" — RC plane...
