2168 Off Season WCD Prototypes

[lnex1357]

Our 2015 offseason prototype designs.

Goal:

Transition from a fully customized sheet metal drivetrain to COTS that is fast to design, fast to manufacture, fast to assemble, fast to maintenance while maintaining performance, reliability, repeatability and durability. This transition to a COTS focus is taking place to shorten our build season and allow for design focus on key areas instead of the entire robot. All questions are welcome. Note: The CAD was developed to a point to support manufacturing and may contain re-build errors.

Two 8WD WCDs

https://drive.google.com/file/d/0B7q...ew?usp=sharing

Single Speed:
8WD - 4x1.5 colsons on spread-center 4 wheels
2" x 1" x 1/8" wall 6061-T6
#35 Chain / 1:1 12T Sprockets
3CIM Single Speed WCP Transmission (11.5 ft/s theo)
About 38 lbs. with transmissions

https://drive.google.com/file/d/0B7q...ew?usp=sharing

Two Speed:
8WD - 4x2 colsons on spread-center 4 wheels
2" x 1" x 0.1" wall VPRO tube stock
#25 Chain / 1:1 16T Sprockets
3CIM Two Speed WCP Transmission (5.5 ft/s and 17ft/s theo)
About 42 lbs. with transmissions


CAD is available here:

https://drive.google.com/folderview?...&usp=sha ring