05-05-2021, 10:07 AM
It is the gap between the farthest two holes in the adv/ret arm Bob.
My adaptation has a nickel screw in the original hole and the Mecanno extends to the position of the alternative, "long gap hole arm".
My adaptation has a nickel screw in the original hole and the Mecanno extends to the position of the alternative, "long gap hole arm".