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Unread 28-08-2012, 00:48
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Re: pic: 2012 frc971 transmission

Quote:
Originally Posted by MICHAELABICK View Post
I'm wondering if you think that you would run this drivetrain again considering the following:
  • weight gain for the extra stage rectified by the less weight of belts
  • efficiency loss for the extra stage mildly rectified the the greater efficiency of belts
  • more prone to over turns mildly rectified by better software
  • more prone to over turns mildly rectified by more space on the inside of the chassis
  • 1 more point of failure mildly rectified by less maintenance in general
  • harder to implement encoders mildly rectified by less machining required
  • harder to replace belts mildly rectified by easier to replace gearboxes
  • more expensive(extra gears for extra stage and for encoders) rectified by less machining

Out of all of these things there are a few pretty nice benefits(that still outweigh, at least imo, any negatives associated with them): less machining and less maintenance.

However you lost some one of the most important benefits of a classic WCD to me: the prototype with old drivetrain parts without keeping a large stock of parts(ie belts).

Did you think the trade off was worth it? Do you think for next years you would go with a more conventional belt drive, or maybe even a classic WCD?
Most of these are aren't an issue. They don't have an additional stage of gearing compared to a west coast drive, they just have their shift stage before a reduction (versus a reduction, then shift stage).
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