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robot with 10" wheels
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Author:  aaneetha [ Tue Aug 06, 2013 7:55 am ]
Post subject:  robot with 10" wheels

What battery for a robot with 10" wheels, and how do I connect wheels to motors? I am working on a robot with 10 inch wheels. How should I connect the tires (almost identical to car tires) to the motors? I will most likely have to use gears to increase the mechanical efficiency. In addition, how should I build a platform for these wheels?
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Author:  rcahoon [ Tue Aug 06, 2013 11:03 am ]
Post subject:  Re: robot with 10" wheels

Hi aaneetha,
Note that these forums are for issues with ROBOTC programming language and related products; mostly this is used to control table top-sized robots, but there's no reason why you couldn't use it with an Arduino or VEX Cortex to control higher power-rated speed controllers.

The mechanical interface between motor and drivetrain and wheel will be highly dependent on the specific components you're using. If there's nothing available off-the-shelf, you may have to look into machining something custom.

The battery required will depend on the amperage draw of the motors you use. For the scale you're talking about, people usually use sealed lead acid (SLA) batteries - usually either 12V, 24V, or 36V. You'll have to calculate the amp-hour rating of the battery based on the power requirements of your system and how long you want it to run on a single battery charge. For an overview of battery technologies, check out this page; in general, resources on combat robots will probably be the most readily-available source of information for this scale of robot.

We are not affiliated with them, but you may want to check out the products at Robot Marketplace. They have robotics components that are suited for the scale of robot it sounds like you're trying to build. They sell mechanical couplers for certain lines of 10" wheels - YMMV. You can also check out FIRST Robotics Competition suppliers like AndyMark or VEX Pro

Best,
--Ryan

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