View Single Post
  #2   Spotlight this post!  
Unread 21-01-2014, 20:35
thefro526's Avatar
thefro526 thefro526 is offline
Mentor for Hire.
AKA: Dustin Benedict
no team (EWCP, MAR, FRC 708)
Team Role: Mentor
 
Join Date: Aug 2006
Rookie Year: 2005
Location: New Jersey
Posts: 2,599
thefro526 has a reputation beyond reputethefro526 has a reputation beyond reputethefro526 has a reputation beyond reputethefro526 has a reputation beyond reputethefro526 has a reputation beyond reputethefro526 has a reputation beyond reputethefro526 has a reputation beyond reputethefro526 has a reputation beyond reputethefro526 has a reputation beyond reputethefro526 has a reputation beyond reputethefro526 has a reputation beyond repute
Send a message via AIM to thefro526 Send a message via MSN to thefro526
Re: adapting the fisherprice gearbox

Quote:
Originally Posted by Camren View Post
Seeing as the fisher price motor is illegal this year, has any team adapted their gearboxes to accept legal motors?
The Fisher-Price motor from previous years is in the family of '500-series' motors. Pretty much anything using the same case size, like an AM-9015, BaneBots RS550 or RS555 will fit into the same mounting geometry as the FP motor. The only real part that's specific to that motor or transmission is the pinion, some of which are 19T 32DP, and then there are a handful of other sizes out there.

If you decide to use an AM-9015 which is physically identical (within reason) to an FP motor, you should be able to swap the pinion from the FP onto the 9015 without issue. If you use an RS550 which has a slightly smaller shaft diameter (3mm vs. .125") and lacks the knurling that the FP and AM9015 output shafts have, then you may need to look into a pinion with a set screw, or some type of retaining compound like loctite 609 to get a proper fit.
__________________
-Dustin Benedict
2005-2012 - Student & Mentor FRC 816
2012-2014 - Technical Mentor, 2014 Drive Coach FRC 341
Current - Mentor FRC 2729, FRC 708