This simple device facilitates the use of any tube, helping to squeeze it evenly and gently. It consists of a base in a hole which is inserted the tube, and turning a key with slit for exciting a planar end of the tube. The base and key are made of wooden bars of appropriate dimensions. Their interaction is clear from the figure.
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TRAP FOR BUTTONS
I think that to get firmly entrenched in the Board Kuhlman button convenient this device. The sharp edge of a metal Cup, you can easily pick up a hat of any button. A slight twist — and...
CLASS “A-3” the mass is, the skill will be!
This is one of the most heavy and high-speed models. It belongs to the class "A-3" according to the Rules NAVIGA. The model consists of the following main components: hull, floats, motor...
