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Re: Mecanum Demo-Bot Recommendations?
Thanks for input everyone - very helpful!
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Re: Mecanum Demo-Bot Recommendations?
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I believe VexPro's ratings are conservative, because I know several of the engineers there and trust their design skills. However, based on their construction, the AM HD wheels seemed like a safer choice. We did not know in advance how hard we would be working that chassis. |
Re: Mecanum Demo-Bot Recommendations?
Pictures of one of our demo bots top view and corner view. We are in the process of developing a full set of twelve robots out of the VEXPro parts (twelve different styles of drivetrains with interchangeable manipulators). Each robot is 20" x 20" for portability and ease of use in small-ish spaces.
The mecanum one pictured was a summer day camp project for an 8th-9th grade group. 4" VEXPro wheels with clamping gearboxes. I think they are 11:72, but might be 12:72. Runs just fine on both tile and carpet and has been durable enough for demo purposes (we haven't specifically tried to break it). If we hadn't scavenged the control board for another project I'd show off the nice LED underglow too. |
Re: Mecanum Demo-Bot Recommendations?
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http://www.vexrobotics.com/vexpro/mo...um-wheels.html Look under Mecanum Wheel update |
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Re: Mecanum Demo-Bot Recommendations?
I'm surprised that nobody has mentioned this yet, but one of the biggest reasons to use mecanum wheels on a demo bot is for the shock-and-awe factor! In that regard, 4" or even 6" wheels are a bit small-- this makes it harder to see what's going on and how the wheels work.
I would personally suggest 8" wheels for this application, although 10" mecanum wheels aren't a bad choice either. AndyMark offers both 8" and 10" varieties, and I can personally recommend them for their durable construction-- although I will definitely admit that the VexPro mecanums are easier on the eyes. |
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