Cycloidal Drive

A cycloidal drive is a mechanism for reducing the speed of an input shaft by a certain ratio. Akiyuki’s Cycloidal Drive module is an impressive representation in Lego of such mechanism. This massive module has mesmerizing moves and will quickly carry your balls to their target destination. A crazy building!

Original design by: Akiyuki Number of parts: 2081
Original Blog Article (Japanese): here Complexity for building:
Price for Building: €€€€, expensive

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One comment

  1. I found that the rotating part of this model was heavy and by design kind of loose and floppy which caused some balls to drop. I have corrected the problem by adding a blue technic axle pin with friction ridges part number 43093 and a red technic ball part number 53585 to the back side of the gray barrel that squeezes into the yellow guides. WaLa! problem fixed and everything is more stable now.

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