Team Special Circumstances Build Log

@Luetchy and I have been working on designing and building a 3lb combat robot called “So Much for Subtlety”.

So far we have built 2 distinct version of our robot. The first version of So Much for Subtlety was significantly overweight and ran into a number of significant technical issues during the build process. So we were forced to remove most of our armor and our weapon was significantly under powered.
2018-03-08

So Much for Subtlety did not do well in its first fight and was rendered basicly inoperative.

We learned quite a bit from V1 and set out to create V2. We started by changing the weapon, simplifying a number of parts and testing a bunch of different motors and ESCs.

First we built a new drivetrain:

Then we got to work making the new weapon:
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@Chris_Wischkowsky and @hon1nbo helped us heat treat the S7 tool steel for the drum:

We then finished one of our two weapons, the 2 tooth beater bar.

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At this point we ran into some issues with our drivetrain that required we rebuild the whole thing:

After the rebuild we thought we were close to being ready to fight:

But packing our electronics into the body proved to be rather tricky, but we managed.

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Fully built our robot weighed in at 1247 grams well under the 1360 gram limit

So being the fools we are we designed to build a new weapon, a single tooth drum:
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James Koffeman and Polyprinter generously machined the crazy drum shape for us.
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I then finished it out on the lathe at the makerspace.


We then balanced the drum:

@Luetchy then heat treated the new S7 weapon tooth

Next we weighed the unassembled bot and came in at a cool 1280 grams

Then we rebuilt and tested So much for Subtlety V2
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Come watch us fight at Robot Rebellion 2.3:

10 Likes

Looks like a very interesting project and also a very interesting process.

Wanna come out to Open House and demonstrate it? It’s an inspiring use of a lot of Makerspace tools.

5 Likes

Sure!

@themitch22 how hard would it be to organise a demonstration fight at the space? Can the arena be moved or is that not realistic?

I bet if we could get the people from DARC to volunteer and pay for the truck (somewhere around $500 to transport it)

Great write up. I’ll do a little write up for my bot.

Would it fit in one of out trailers? If so, just need someone to tow and a lot of expense saved.