Forum: Electrical
16-10-2013, 21:42
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Replies: 39
Views: 4,591
Re: LiFePO4 Batteries
I'd check out LiFePo4 batteries for hobby applications initially. Here's an 8.4Ah, 4-cell pack (13.2V nominal) on HobbyKing:...
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Forum: General Forum
19-02-2013, 00:52
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Replies: 4,808
Views: 1,188,398
Re: "Quotes" that were said during build season
*freshman picks up an aluminum bar painstakingly wrapped in rope*
freshman: "what is this..?"
mentor: "I'm not sure, I think Shimpei made it."
freshman: "but what does it do....?"
mentor:...
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Forum: Extra Discussion
21-01-2013, 21:56
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Replies: 7
Views: 2,433
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Forum: General Forum
21-02-2012, 20:23
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Replies: 122
Views: 16,426
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Forum: Motors
20-02-2012, 01:27
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Replies: 13
Views: 1,938
Re: Fisher Price Overheating Troubles
I think what is being said is that as you draw current from the battery, its voltage drops and decreases the speed of the motor further. If you run a lower gear ratio to get lower theoretical free...
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Forum: Robot Showcase
18-02-2012, 22:33
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Replies: 0
Views: 262
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Forum: General Forum
18-02-2012, 01:47
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Replies: 110
Views: 21,513
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Forum: Robot Showcase
18-02-2012, 00:43
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Replies: 25
Views: 4,489
Re: 3 Balls in a second and a half
How are you managing the wires between the turret and frame? Nice fabrication on the shooter, by the way, sounds AND looks nice and smooth
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Forum: Electrical
22-01-2012, 23:29
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Replies: 20
Views: 2,871
Re: Flat 12AWG Wire Legal?
I think it's possible so scrape off the insulation and solder on a short length of standard 12AWG wire on each end for connections. In any case, it is unlikely that we'll be using this stuff as...
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Forum: Electrical
22-01-2012, 17:18
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Replies: 20
Views: 2,871
Flat 12AWG Wire Legal?
For various reasons I am looking into using flat 12AWG wire to drive the two motors for our shooting mechanism. I have found no rules thus far that prohibit the use of flat wire, as long as they are...
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Forum: Robot Showcase
13-01-2012, 21:47
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Replies: 0
Views: 399
Team 100 Prototype Shooter Testing
Footage from today's test of our prototype shooter using four 6" wheels (two top, two bottom) and two FP-9015 motors (the only FP motors already wired up for prototyping). It's mildly comedic at my...
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Forum: General Forum
08-01-2012, 01:27
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Replies: 4,808
Views: 1,188,398
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Forum: Electrical
07-01-2012, 22:31
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Replies: 7
Views: 1,394
Re: Using a Flex Sensor
I believe most flex sensors, if not all, act as variable resistors giving analog values. In this way, you'd wire the flex sensor into one of the analog inputs on the Arduino. The Arduino has an...
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Forum: General Forum
16-02-2011, 22:34
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Replies: 4,808
Views: 1,188,398
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Forum: Electrical
22-01-2011, 02:04
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Replies: 12
Views: 1,368
Re: How many Jaguars...
I believe there are only 8 40-amp capable connectors on the PD board, so that's another limiting factor. Not sure what size breaker the larger BaneBots motors require, but I know the CIMs for sure...
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Forum: Electrical
21-01-2011, 22:09
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Replies: 13
Views: 1,605
Re: Camera Light
How about something like a 1 watt IR LED? Wouldn't blind anybody, and you could control TVs from miles away! :ahh:
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