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Reduction gearing 1:4096 ratio, 3x5x5 studs
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Compact (3x5x5 studs) set of 4 worm gears with 1:4096 gearing ratio
About this creation
Visit my Lego helicopters blog

In high-end helicopter model designs (and any other complex machines) we need lot of power functions: actuate controls, rotate gun turrets, actuate flaps, drive rescue winches, retract/open landing gear, etc. In RC models usually these are performed by small sized servo motors, including electric motor, reduction gearing, safety switches, and ocassionally positions sensor in one self-contained unit.

Here, we show an example of a compact (3x5x5) set of 4 worm gears with 1:4096 gearing ratio to convert ordinary Lego PF M-sized motor into a servo with exact positioning (11.37 rotations of black axis moves 1 degree the gray lever).

This can be used as a replacement whenever Lego PF servo motor is not available.


Building instructions
Download building instructions (LEGO Digital Designer)

Comments

 I made it 
  March 10, 2014
Quoting Jeremy McCreary Excellent! I can already think of at least 3 uses for this amazingly compact gearbox.
Thanks. I use it making servo from ordinary PF M-sized motor.
  March 9, 2014
Excellent! I can already think of at least 3 uses for this amazingly compact gearbox.
 
By Gabor Pauler
Add to my favorite builders


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Added April 12, 2013
 


LEGO models my own creation MOCpages toys shop Reduction gearing 1:4096 ratio, 3x5x5 studs


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