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Unread 26-01-2012, 13:57
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billbo911 billbo911 is offline
I prefer you give a perfect effort.
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Re: Gearbox options for Fisher Price

I'm no expert on this subject, but let me throw a couple thoughts out there and I know the CD community will help refine them for us.

It appears that the pinion and 1st stage gear in the FP trans are 32DP. I base this on this pinion at AndyMark.
From what I remember, and here is where I may need some help, most of the stages of the FP trans use the same DP gears. So using the equation for determining the center to center distance for gears, CtoC= (N1+N2)/DP, where N= number of teeth on the gear, you should be able to build your own transmission quite easily.

For each gear interface, adding .003" is a good idea to account for manufacturing tolerances.
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