Bansbasch Easylift pivoting shock absorbers must be on every manufacturer's mechanics list. In the case of a mechanical escapement, for example, these dampers ensure a smooth, slow transfer of kinetic energy. I found out about it by watching this YouTube video: YouTube caption: Making a WIND-UP Marble Machine! I found the return had more resistance than I thought. One solution to making the reset direction less restrictive is to use a small ratchet wrench.