A weekend of building shenanigans!

Saturday, March 15th, 2008 @ 2:35 | MIT & Boston, Project Build Reports, Stuff

More likely than you think.

Hmm, what is Charles doing with a brushless ETek and four S28-400 Magmotors?

And is that a gigantic controller next to the Etek?

What you're not seeing is the two 36v 10AH lithium packs.

Why yes it is, a 200 amp 48 volt unit. It weighs about 4 pounds.

Luckily, it’s not for an entry in the recently announced Battlebots Collegiate competition to be held with ESPN, though there are spare motors and controllers and I am in rather good standing with the ML folks.  Instead, it is for the Media Lab’s newest mental project, a 4 wheel drive omnidirectional electric vehicle with in-wheel motors.

What a mouthful. I hope they give it a snappy name.

Above is the testing frame under construction. The chassis “rails” are 4 x 8 8020 extrusion – i.e. fuxing huge. Equally huge batteries will be mounted between the rails, and controller & accessories will be stored in the side pods. The whole thing will have a Lexan-and-8020 look, like many small robot arenas. I like. I have yet to get authorization to install LED modules in the Lexan parts.

The corner areas will eventually house four omnidirectional-steering-capable electric wheel modules. One brushless Etek might be driving each wheel, or a premade commercial hub motor will be. It hasn’t been determined yet.

I personally vote for commercial hub motor, since then there will be more spare Eteks (and it will be easier to interface with the steering mechanism!)

Oh, and have you guys ever seen aluminum foam?

Yeah. Weird shit.

 

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    2 Responses to “A weekend of building shenanigans!”

    1. NMajik Says:

      Where did that aluminum foam come from?

    2. the chuxxor Says:

      Presumably from a place that makes aluminum foam.

      I can’t imagine MITERS having the necessary equipment to homebrew aluminum foam, but they have done some seriously weird shit before, so……