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motters
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WBR web site update - 2007/09/08 03:13 This thread discusses the Content article: WBR web site update

.NET controls and player/stage support are all fine, but as a hobbyist this robot is still out of my price range. I feel like I'm at the stage where I have some interesting software ready for integration testing, but am just waiting around for some company to produce a PC based robot at a reasonable cost.
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c6jones720
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Re:WBR web site update - 2007/09/08 03:25 It would be cool to see some of your projects on this forum. Your older projects have certainly helped me along in the past.

I do agree with you though, it took me a while to save up for my 914, they are not cheap commodities.
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motters
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Re:WBR web site update - 2007/09/08 03:56 One possible alternative is the Coroware robot. I've made some enquiries about that, although I'm not sure if it's yet on sale (even though the web site suggests it is). Hopefully before long there will be more players looking to establish a toehold in the PC robot market, which in time could become more lucrative.
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jamesbruton
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Re:WBR web site update - 2007/09/08 04:29 It looks like Corobot is around $3000 USD and the size of a mini-itx board on R/C car wheels.

http://www.corobot.net/

This pretty much justifies the price of a 914 doesn't it - Why not just get a 9 Series basic unit?

Post edited by: jamesbruton, at: 2007/09/07 20:33
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motters
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Re:WBR web site update - 2007/09/08 04:55 Yes the Corobot and basic 914 are a similar price, although the Corobot does have an onboard PC fitted as standard, wheel encoders and larger wheels which would make it suitable for some outdoor experiments.

One thing which I would be looking for is reasonable dead reconing performance. I'm not expecting it to be great, but some amount of odometry will greatly assist the vision software, reducing the number of particles needed to model the position uncertainty and hence keeping the computation to a minimum.
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jamesbruton
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Re:WBR web site update - 2007/09/08 05:07 The 914 hardware can do dead reckoning/odometry since the wheels are driven with stepper motors. Check out the Player examples - you can query the robots 'pose' at any time which is x/y coordinates and also it's rotational angle, after the wheels have travelled an arbitrary amount.

I'd have thought that a two-wheel differential drive like the 914's would be better than 'four wheel skid steer' for accuracy anyway...?

Post edited by: jamesbruton, at: 2007/09/07 21:11
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