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Friday, August 28, 2015

2 Speed orbital transmission


A 2 speed orbital transmission, a what? That’s the question some of you just asked yourself. An orbital transmission is a transmission that is placed between two gears, gears are changed by turning the transmission 180 degrees, and there are usually no dead gears in an orbital transmission making it very efficient. in the orbital transmission I have shown in the video, 1st gear has a ratio of 3:1, whereas 2nd gear has a ratio of 1:3, this transmission is very effective when speed and torque are both needed, but not at the same time. The only downfall in this transmission is the play in the rotating transmission body, allows the gears to skip when too much resistance is applied to the output, (in the video the output is the yellow connecter). The transmission will smoothly change gears, because the gears roll together, instead of clicking together and stripping the teeth on other gears. The motor used to power this transmission is a Lego M motor, with a Lego AA battery box. All can be found at the online Lego shop, link in right margin. Pieces can all be found at Bricklink.

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