So it is the 1807 BGS I noted here: - Too much play at the pivot axis, it hurts too afraid that the rod slides the stem of the ball and the breaks. - Poor distribution of steel, the rod to easily identifiable weaknesses because it is the same width as the two side yours, logic dictates that the link was two times thicker than each of the two brackets that hold the ( KSTOOLS home that's how, for example). - The points of contact of the ball screw and rod are flared to prevent all rips or slips. - The advantage compared to the BGS in 1804 is that the top of the tab that slides between the patella and its attachment is clear, the 1807 BGS can be used even on large substrates.
