When power is supplied to the external drive sprocket, the track moves backwards, the grippers deploy, and the ski is driven forward. Grippers are spring loaded, and only deploy when cycling through the bottom part of the track. The ski needs metal ski ed... moreWhen power is supplied to the external drive sprocket, the track moves backwards, the grippers deploy, and the ski is driven forward. Grippers are spring loaded, and only deploy when cycling through the bottom part of the track. The ski needs metal ski edges, not shown, but those and the pick-like points of the grippers should allow powered cornering on hard pack and ice.
The rigid metal edges of the skis take most of the loading forces off the track. The spring loaded grippers are protected from excessive load and shocks, by the springs. less
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