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Unread 10-07-2016, 03:12
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Re: pic: GEAR & CHAIN IN TUBE 8WD

Here is the updated version I ended up with.

-23.33lbs, only parts missing are chain runs, and bumper supports I suppose (all hardware besides rivets included)
-24"x32" chassis
-4"x1.5" VEX Colson wheels (1/2 hex bore)
-11:70T Single Stage reduction within the drive tube
-Drive tubes are 2x2x.125" 6061, while the front and back tubes are 2x1 Versa
-All sprockets are 16T #25 VEX sprockets with the chain run fully contained inside the tube
-The middle wheel is dropped 1/16"
-In this current configuration a US Digital S4T encoder is utilized, though the CIM encoders could easily be used instead, or a Grayhill, etc.
-All parts are COTS except for the two drive rails, the two encoder plates, and the belly pan (could be lexan, wood, etc. for low cost)
-The only other modified parts are the front and back rails (lightening pattern), shafts cut to length, and the direct drive shaft is turned down on one end to 3/8" round to couple to the s4T encoder (optional depending on encoder use)

Apologies again for the large picture:
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