Quote:
Originally Posted by CraigHickman
Very very nice! I've got a design that's quite similar to this brewing.
Out of curiosity, why drive the rear wheel, instead of the middle wheel? I've always found that it's easier to distribute the weight of the base when it's centered.
I really dig this design. Keep plugging at it!
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Thanks Craig!
I have a few reasons for going with the rear direct drive.
-I wanted to start off with a good majority of weight behind the middle wheels in order to
reduce the amount of rock the chassis experiences while driving.
-I also wanted the maximum amount of open mounting space for electronics without the gearboxes getting in the way.
-With this design I'm able to put the battery closer to the center of the chassis, which
helps a lot in balancing things out, and since the battery weighs more than the shifters, its
placement on the chassis is more critical (at least in my opinion).
-And of course... because it looks cooler
Quote:
Originally Posted by Hawiian Cadder
if you are going to do this make sure that the chain is not going through a tube, my team did something exactly like that for 2008 and it ended a very badly, we dremeled at least 5 holes in the cover at competition in order to fix it. also, be sure to leave a lot of space between the chain and its cover, otherwise when in operation the chain vibrates just a little bit and hits the cover. as long as you dont have those issues, that drive looks fantastic.
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I already took this into account. The chain is fully accessible from the bottom of the robot, there
is more than enough distance from the chain to the rail, and my chain tensioner (coming soon)
will help hold the chain away from the rail itself just for added protection.
Thanks for the advice though
Quote:
Originally Posted by Formerly Famous
Because WCD are done with live hex axles most of the time, teams use bearing blocks and then hex bearings. I can't remember who right now sells the bearing blocks(AndyMark?), but I do remember that AndyMark sells the bearings.
Garrett, it looks awesome.  |
Thanks buddy!
Though most teams make their own bearing blocks for their chassis, team221 sells them, and yes the hex bearings I used are AM's.