Have you looked at your Fisher-Price box?
I opened up the Fisher Price units we got this year, and guess what- they've changed! Our units run at about 180 rpm no load (as compared to the published values of 100 from past years and in First Update #3). The bare motor now turns at 20,000 rpm (vs 15,000 previously), and has a 21T gear on it as opposed to the 16 tooth- the net effect of the higher speed and the larger drive pinion is the higher output speed.
The last 2 stages of gearing have been changed as well- the final stage gear has larger teeth and is black (and I assume is made of a different plastic). But all the ratios (save the first- from motor to the first stage plastic gear) appear to be the same.
Anybody tested these to see what the stall torque and currents have changed to?
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