A third hand is required the one who makes the soldering or welding of small parts, electronic and mechanical elements that we need to monitor both the connecting part and the tool. I made this work a device that securely holds the workpiece in any desired position. Made it so. The metal base is welded a ring-taped retaining screw from the top. The inner diameter drove a ball (of any material) with a through hole in the middle: it introduced the forceps, the legs of which, as vivigani closer together, pinching the item. The desired angle is given to changing the position of the ball. V. ARONETS, Chernivtsi
Recommend to read
ON ONE WING
Not for the first ten years there is a class of experimental aircraft. It would seem that this time is sufficient to clearly determine the best scheme inflected wing", the most favorable...
RESERVES FREE FLIGHT
A simple design of the airframe suggested that the German model airplanes G. Jung and C. Rosa (Fig. 1). The model has good performance and can be built athletes having small practical...
