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pic: What are we up to? FRC1771
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Re: pic: What are we up to? FRC1771
Wow, that one pretty much blows ours out of the water. :P
Looks pretty solid. Actually, it looks really really solid. Any hints as to what kind of cool mechanisms will be going on top of it? |
Re: pic: What are we up to? FRC1771
ur design looks pretty similar to the design we r going with
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Looks like a 3D puzzle. Looks good and very strong, good job 1771. You guys always seem to have something that is unique and effective every year.
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Re: pic: What are we up to? FRC1771
Thanks everyone. I kinda left off the specs so here goes:
-6wd with a dropped center wheel and the center wheel is directly driven off of highly modified tough boxes -The frame was designed so that everything was aligned by tabs for easy assembly and boat building epoxy was used -This frame is much stiffer than our custom 1/4" thick aluminum frame last year for an approximately 10lb weight savings. As for whats going on top, it is eerily similar to what you guys have already posted up with a few differences. Mainly we will be able to shoot downwards at a 40 degree angle without reducing the speed of our shooter. Hopefully everything comes together O and this is bot #2...the real thing will be even nicer |
Re: pic: What are we up to? FRC1771
That is very nice! I really like how it's self tabbing. Got a team full of model airplane builders or welding guys?
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Re: pic: What are we up to? FRC1771
I'm digging the spots all over it. ;)
I like the wood frame, and I can't believe it's only 18 lbs with axles! Actually, maybe I can believe it, but I'm in disbelief because our robots are always overweight, and it starts all the way from down there. Looks like you're going to have another great season. |
Re: pic: What are we up to? FRC1771
Sean......you are a beast. Very nice work. I look forward to seeing you guys in Atl.
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What's the glue you're using? Those spots remind me too much of cyanoacrylite (CA)... Then again, I've been helping build an R/C airplane.
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Re: pic: What are we up to? FRC1771
We are using MAS brand epoxy. It is a very strong slow cure epoxy used in boat building. One of our students got a bit carried away with the epoxy on the top. i kinda think it looks cool though. Other than the smell, this epoxy is incredible.
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Re: pic: What are we up to? FRC1771
That's the coolest wooden chassis I've ever seen. Looks really solid. Good job!
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Re: pic: What are we up to? FRC1771
but the question is, will it float?
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Re: pic: What are we up to? FRC1771
It would definitely float. We have built it very similarly to the way you would build a wooden boat. We use no screws or nails and only the epoxy to hold it together.
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We would be one of the few teams that would be ok. We will just keep on floating. I must say wood is the real deal for frame material
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Re: pic: What are we up to? FRC1771
That is a thing of beauty.
As a wood worker I was wondering how you made those cuts until I read the caption. A laser almost seems like cheating, but thats just myjealousy of not having one:D . |
Re: pic: What are we up to? FRC1771
Believe me...sometimes having the laser I feel like we are cheating too. We were the first people to try lasercutting okoume so it was a bit of a mystery as to how it would work. Luckily it came out beautifully and everything fits together like a puzzle. I really don't see much reason for a wood frame after building this one. It is stronger in every way except for gouging resistance but thats not an issue with bumpers.
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Re: pic: What are we up to? FRC1771
what thickness is that oakume and was it hard to find, I built a kayak and it was pretty hard to find a supplier.
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Re: pic: What are we up to? FRC1771
It is 12mm okoume. It was a royal pain to find a supplier. There is only one place in all of Georgia that carries it and they generally don't have much stock of it so it normally is an ordered in item. They also have meranti plywood but we chose the okoume for the weight savings.
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Re: pic: What are we up to? FRC1771
This is the second time I've looked at this picture, and I'm still trying to figure out how you service the drivetrain. Do you have to tip the whole robot up on end and work from underneath?
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Re: pic: What are we up to? FRC1771
Yup to work on the drivetrain we will flip the bot. The bottom is completely open. We really dont have anything to service though. The chains are tensioned from the sides. The plan is to basically never touch it. If we do need to though it will be super simple. The center wheels are directly driven which cuts down on maintenance pretty substantially.
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