Quote:
Originally posted by Jeremy_Mc
We had this too...your hexical gears (worm gears) are moving on the shafts. Make some aluminum spacers to hold them in place and you'll be ok 
*jeremy
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Just as a side note,
Helical gears are not worm gears. They have very different functionality.
- Helical
-- Can turn a force either parallel or perpendicular to itself
-- Can be backdriven
-- Pitch ratio determines final output of forces
- Worm
-- Can turn a force either parallel or perpendicular to itself
-- Can not be backdriven
-- Ratio is either 1:Spur teeth or 2:Spur teeth. (i.e. a worm gear can be considered a 1 tooth gear or, depending on it's thread, a 2 tooth gear)