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haz
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Post by haz »

cool as a penguin eatin an ice cream made of ice! :o
where can i get a 12v batery pack or do you think 12v drills can take 14v
and how much is a good speed control

sorry i ment to put no idea 3 times :(
- no idea
:D
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bitternboy
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Post by bitternboy »

Motors can generally take 50% more than they're meant for safely so 14v would be fine. I'm personally using a sabertooth 25A which cost about ?100, a fair chunk of the budget (you could probably build a decent antweight with it). You could probably find a slightly cheaper on with less features but I wouldn't know anything about that... :)
Jonathan Atkinson
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craig_anto
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Post by craig_anto »

motors will take double the voltage they're rated but double the voltage double the current quadruple the power that sounds brilliant but the life of the motors is vastly reduced when you do this

12v drills on 14v will be perfectly fine
haz
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Post by haz »

lookin back through feather topics and posts i see that Simon Windisch used 2 50a boat speed controlers in someones in the kitchen with dynamite and wondered if i could do the same with 2 60a ones from giant cod, ideal use for at least one fihgt with out exploding :-?
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Simon Windisch
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Post by Simon Windisch »

My boat controllers outlasted the motors and armour.

Simon
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terminaldamage
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Post by terminaldamage »

I haven't looked at every single speed controller on GiantCod but from what I can see browsing through them, they're all designed for brushless motors. You'd need one designed for DC brushed motors to be able to control drill motors.
Jamie McHarg
RogueTwo Robots
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With great power, comes great reliability.
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bitternboy
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Post by bitternboy »

http://www.mtroniks.net/

Good website for brushed controllers.
Jonathan Atkinson
Before you criticize another person, first walk a mile in their shoes. Then, when you critisize them, you'll be a mile away and have their shoes.
haz
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Post by haz »

cool what exact ones did u use simon? :-?
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Simon Windisch
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Post by Simon Windisch »

Leo sold them to me, he might have details???

Simon
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terminaldamage
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Post by terminaldamage »

If it's the same type of blue boat controllers that were quite popular a few years ago, then you're probably looking for something like this:

http://cgi.ebay.co.uk/2x-Marine-50A-Spe ... 2308329682

There are no specs on this particular eBay item but if you search for '50a esc' you'll find a few of them up for sale. Generally they are rated at 50A forward, 20A reverse and have an operating range of 6-12V, although some people have managed to run them at 14.4V.
Jamie McHarg
RogueTwo Robots
www.rogue-two-robots.vze.com

With great power, comes great reliability.
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