SPRiT  MX  Complex Rate Springs     


-   World Premier Mar 20,  2020

-   Challenging to 99% Supreme Precision  

-   Complex Rate v4.3  =  Progressive + Linear  


I have designed these Complex rate springs to be much lighter than normal springs by 5g - 7g until the actuation point by progressive rate as Graph 1.   

The force rises by linear rate after the actuation, results in the same bottom out weight as the conventional linear springs.  

Complex rate springs are hard to find any example in the electronics industry, the production is trickier and complicated.


* No Polarity on Progressive springs.

  According to the Newtonians,   Fab  =  - Fba  


Please Enjoy Your Premier Builds, 




Bottom out Force  /  Force ratio Before vs After actuation


63.5 C  -  Starts at 28g,  actuates at 43g.  Force ratio  =  3 : 4   


68 C     -  Starts at 31g,  actuates at 47g.  Force ratio  =  3 : 4   


72 C     -  Starts at 33g,  actuates at 50g.  Force ratio  =  3 : 4


78 C     -  Starts at 35g,  actuates at 53g.  Force ratio  =  3 : 4



For further info  >   spritdesigns.com/mx

Full Stocked       >  www. Monstargears.com


MX Complex Rate

Bottom out Weight

    Free Return if items have serious production defects.  Free Refund before the item has shipped out. 


    FedEx,  EMS Express 

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