Innovative designs
 

So here we are heading into the third week of competitions. There are a number of "how to make the regionals better" threads running right now that are quite serious in tone. I'm starting this thread to hear about the incredible robot designs out there. But here is the qualifier: I'm looking for ugly but functional, the non-machine shop robots, the "we only have a sabre saw" robots, the creative use of Home Depot and Lowe's hardware, the "I can't even spell CAD" designs.

While I am super-impressed with the laser cutting capabilities of some teams and the awesome robots that they come up with, I am even more impressed with the under-manned, under-tooled, under-computer-savvy teams out their that troll the aisles of hardware stores looking for ways to use what they see on their robots. You've all seen them at the competitions. The wobbly looking, baling wire robots that seem to kick butt.

I'll start with an example: One team found some flourescent orange snow fence netting to use for their ball hopper (sorry I forget the team number). Functional, lightweight....and ugly! I love it!

Re: Innovative designs
 

we were thinking about using that orange stuff for our hopper to meet weight, but found some fiberglass sheeting instead, and punched holes in it.

The 1897 Dragons made good use of galvanized a/c ducting and plastic lawnmower wheels, they were in the winning alliance in the Az regionals. Great job!

Re: Innovative designs
 

That team was 228, GUS. They gave us a section of it at the UTC regional when we were trying to make weight and shedding polycarb left and right. It worked really well for us, and it even matched our polycord! I'm pretty sure we weren't the only team that got our hands on some of their spare fencing. Thanks, 228!

Re: Innovative designs
 

We don't really machine anything on our team. The most er "advanced" thing I would say we have is a drill press which I'm scared of so I really don't know what they use it for. I mean yeah we have a machine shop at one of our schools (a small one, none the less but we didn't really use it). Most of our materials do come from Home Depot or another store of the like. We did a pretty decent job this year at UCF. We seeded 32 (of 51). I think we could of done better if part of our robot wasn't snapped off in one of the practice matches, but then again...PVC breaks easy so we should of seen it coming.

We had I think the similar stuff, from your explanation that is.

Re: Innovative designs
 

Team 188 from Woburn - used paint rollers to pickup and transport balls to their shooter. They can capture and shoot 3 balls at a time (ball path is 3 balls wide!).

They will be a force to be reckoned with at the Toronto Regional (I saw them at FLR).

http://www.chiefdelphi.com/forums/sh...light=blizzard

Re: Innovative designs
 

We like omniwheels. But we don't have the ablity to machine them, and don't feel like paying for them. So... we wrap skyway wheels in rip-stop nylon. Slippery, cheap, and no machining.

Re: Innovative designs
 

Team 710's robot was made almost entirely in a family room using a drill press and band saw, innovative would be the blockers they had made out of pvc and mesh netting. Also they're rollers for ball pick up were originally my mom's cookie rollers. :D

Re: Innovative designs
 

1568, used netting, could be the netting from a soccer goal, same material a little lighter for their ball hopper, it was light weight and did the job,

Re: Innovative designs
 

Very cool! That's the first time I've heard of kitchen implements being used :)

I'm diggin it. Did you have any "bunching" issues?


This is one of those "why didn't I think of that?" designs!

Re: Innovative designs
 

The stock kit frame, with some angle aluminum from Home Depot, and some speciality plywood (baltic birch). A couple of people have asked if we did CNC, but no, just a hand drill with a hole saw.

Drill press, band saw, router, skilsaw. That is about it.


http://www.flickr.com/photos/kellrobotics/103248144/

http://www.flickr.com/photos/kellrob...n/photostream/

Re: Innovative designs
 

anybody see any catapults yet?

pneumatic ball launchers?

springy poof wackers?

surgical tube slingshots?

Re: Innovative designs
 

MARSBots, IIRC.

Re: Innovative designs
 

Team 970 used a catapult. Team 1248 used what looked like a pinball launcher to shot balls

Re: Innovative designs
 

It's not all that ugly, especially when practically your entire robot is fluorescent orange! I lost count on how many cans or Chevrolet Orange spray paint we went through... I think its somewhere around six or seven full cans. :D The snow/construction fencing is really strong and durable and is amazingly lightweight. Here was team 228's robot during the elimination rounds at UTC:



EDIT: I just reread the original post in this thread, and our robot doesn't really qualify for this thread besides the fact that we used the orange fencing. :o Much of our robot (except various pieces here and there) was machined on our team's Bridgeport and a lathe.

Re: Innovative designs
 

In 1141's rookie year, we used treads from a junked snowblower. In our second year, we used large tires from a junked snowblower. Both years, I believe our total expenditures on the robot was less than $100. We always scoffed when we heard other teams saying "we only spent like $500 on this". Initially, we were going to use a gearbox from an old snowblower, but it turned out it was damaged, and we ended up using pre-owned chain and sprocket. We never even opened our CAD software (this may have changed since I left, but not likely), preferring to simply write down what parts we needed.

When I was working with 1281, I was always making suggestions like "well I bet we could get that part at the junkyard" whenever we needed a part, just out of habit. Spending money on parts that you can quickly and cheaply find at a junkyard seems so crazy to me.