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Gearing using prime numbers
Gearing using prime numbers
About this creation
If you want to get most out your model, you may need some very specific gearing ratio's. In order to get those exactly, you need to be able to make gear ratio's of certain prime numbers (1, 2, 3, 5, 7, 11, 13, ...). It is rather straight forward to make gear ratio's involving 2, 3 and 5, but other prime numbers are less straight forward. This may help you.

The essential trick is to use the differential as an addition-component to make the prime number you need (eg: 11 = 2*3 + 5). Below there are some examples.



















Comments

 I like it 
  March 9, 2014
Excellent! The only thing better than a clever Technic solution is one with a good dose of math. (I love both.)
 I like it 
  October 2, 2012
Aagh - maths!! But clever nonetheless. 4 smilies
 
By Jos Westend
Add to my favorite builders

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Added September 27, 2012
 


LEGO models my own creation MOCpages toys shop Gearing using prime numbersTechnic


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