After releasing the lever, the carriage moves back to the starting point. He must anticipation again next timber along this path. In order to shorten this path and thus to save time, a piece of wood was placed in front of the lever box of a user, which works, but the box bend sometime.
With a couple of holes in the side plates and a steel pin inserted through I could solve it differently. See Image.
What I also did not like was the fixing of the pipes in the table. With screws these tubes were simply clamped. I simply drilled at the locations where the screw on the tube meets holes. The screws can now be completely Screw, engage through the holes and thus prevent the unnoticed loosening the screws and the folding of the table (picture).
