Forum: Extra Discussion
03-27-2015, 10:45 PM
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Replies: 5
Views: 1,881
Re: pic: Team 865 - Tachyon
We ran into a lot of kinks at Waterloo but this was one of our better matches http://watchfirstnow.com/archives/122868691
We also tried out human loading in this match...
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Forum: Extra Discussion
03-26-2015, 10:07 PM
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Replies: 5
Views: 1,881
Re: pic: Team 865 - Tachyon
Features:
Can build stacks of six with recycling container from landfill or feeder station.
Secondary un-powered elevator stabilizes the stack in the robot.
Elevator can travel from top to bottom...
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Forum: Extra Discussion
03-26-2015, 10:06 PM
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Replies: 5
Views: 1,881
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Forum: General Forum
03-23-2015, 12:23 PM
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Replies: 56
Views: 12,767
Re: Best landfill bots
Due to what I believe was a dead cell, the logs showed that the battery was under 9v for the entire match, that's why the driving was slow and twitchy.
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Forum: General Forum
03-10-2015, 09:20 PM
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Replies: 60
Views: 17,504
Re: Video of 1114
That is just spiral pneumatic tubing that connects to the pneumatic actuator on the bin grabber.
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Forum: General Forum
03-10-2015, 08:45 PM
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Replies: 136
Views: 23,741
Re: Ramps
We did some testing at GTR-C with a tethered ramp. Thin aircraft cable was less prone to getting caught in our wheels than 3/16 nylon rope. We made a ramp from pink panther insulation foam, it was...
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Forum: General Forum
03-10-2015, 06:43 PM
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Replies: 60
Views: 17,504
Re: Video of 1114
As someone who was lucky enough to see this bot in person there's definitely nothing but gravity pulling it down.
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Forum: Robot Showcase
02-24-2015, 12:41 AM
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Replies: 13
Views: 4,009
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Forum: Robot Showcase
02-20-2015, 01:59 PM
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Replies: 67
Views: 17,354
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Forum: General Forum
02-19-2015, 08:19 PM
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Replies: 37
Views: 3,046
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Forum: General Forum
02-16-2015, 07:49 PM
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Replies: 81
Views: 10,750
Re: Worried about weight ?
We're at 81.6 lbs, which is way less than I was expecting. We brought in 2 other scales just to confirm.
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Forum: Extra Discussion
02-15-2015, 12:18 AM
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Replies: 7
Views: 3,201
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Forum: Extra Discussion
02-15-2015, 12:16 AM
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Replies: 7
Views: 3,201
Re: pic: 865 flipped CIM WCD gearbox
We were originally going to have the CIM mount plate waterjet cut where ON/OFF cycles are a big factor of machine wear. While we ended up laser cutting them we decided against a lightening pattern...
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Forum: Extra Discussion
02-14-2015, 11:52 PM
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Replies: 7
Views: 3,201
Re: pic: 865 flipped CIM WCD gearbox
Thanks,
the pulleys are 24 and 30 tooth and the belt is a 50 tooth.
The omni sticks out past the CIM motor by about a 1/4 of an inch so that should give it some protection from side impacts. We've...
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Forum: Extra Discussion
02-14-2015, 09:10 PM
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Replies: 7
Views: 3,201
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Forum: General Forum
02-11-2015, 01:31 PM
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Replies: 14
Views: 2,912
Re: Braking
Another simple option may be some sort of band brake (http://www-mdp.eng.cam.ac.uk/web/library/enginfo/textbooks_dvd_only/DAN/brakes/intro/bandSketch.gif). You could make drum from a COTS wheel and...
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Forum: General Forum
02-08-2015, 07:09 PM
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Replies: 36
Views: 5,715
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Forum: Rules/Strategy
02-07-2015, 05:57 PM
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Replies: 10
Views: 2,631
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Forum: General Forum
02-06-2015, 09:31 PM
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Replies: 61
Views: 7,514
Re: Where do YOU practice driving?
Last year we used a carpeted church basement to practice everyday during march break. This year were using the staff lounge, lucky for us the carpet is covered in so many coffee stains that the...
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Forum: Fundraising
02-06-2015, 09:03 PM
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Replies: 6
Views: 1,808
Re: Vending machine fundraising?
We never really got that far, we were mostly just curious on how it all worked. The commissions are quite low overall, and at our turnover it was much much more profitable to sell it out of a mini...
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Forum: Fundraising
02-06-2015, 07:47 PM
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Replies: 6
Views: 1,808
Re: Vending machine fundraising?
For fun one day we called up Coca-Cola and asked them about vending machines. Basically you sign a contract and they do everything (restocking, installation, maintenance etc) except paying for...
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Forum: Control System
02-06-2015, 02:46 PM
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Replies: 0
Views: 584
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Forum: Extra Discussion
01-29-2015, 12:32 AM
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Replies: 4
Views: 1,981
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Forum: General Forum
01-21-2015, 11:58 PM
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Replies: 5
Views: 1,398
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Forum: General Forum
01-21-2015, 10:24 PM
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Replies: 91
Views: 16,469
Re: Mecanum drive on Einstein
I think the issues with weight balance and integration (due to extra gearboxes) don't pose well for high ranking "do everything" robots. That's not to say it is impossible but I think many top tier...
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What else could you do with a t-shirt? Wait... never mind... I retract my previous statement and realized this is FIRST and we can do anything with anything. ;) - Jeremiah Johnson [more] 
