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Dave
05-16-2008, 12:15 AM
So I stuck around the shop for a bit and made... something.


http://www.youtube.com/watch?v=CcXmzASHp3s

It's a waste basket sitting on a hastily improvised R/C base.

Here are his guts:

http://www.trossenrobotics.com/images/forums/wastebot01.jpg

Solarbotics GM9 motors (http://www.trossenrobotics.com/store/p/4918-GM9-Gear-Motor-143-1-90-degree-3-6V.aspx)
GM motor wheels (http://www.trossenrobotics.com/store/p/5552-GM-Motor-Series-Plastic-Wheel.aspx)
Scorpion HX motor controller (http://www.trossenrobotics.com/store/p/3196-Scorpion-HX.aspx)
Hitec Laser 6 Tx/Rx (http://www.trossenrobotics.com/hitec-laser-6-fm-75mhz-radio-system.aspx)
12V, 2.6Ah NiMH AA battery pack (http://www.trossenrobotics.com/store/p/4301-12V-2-6Ah-NiMH-AA-Pack.aspx)
Tamiya connector pigtail (http://www.trossenrobotics.com/store/p/4061-Tamiya-Connectors-Male-and-Female-.aspx)
Corrugated cardboard scavenged from recycle bin
Hot glue
Spare waste basket

The Scorpion HX is awesome for 2-motor wheelbot control because of its built-in channel mixing. Normally, I'm one of those freaks who actually likes doing his own wheel vector calculations, so I initially resisted controllers that do onboard channel mixing. However, the Scorpion does a damn fine job on its own, and I may want to use that extra processing time for other tasks if I ever get around to putting a brain into this thing.

Anyhow, that was tonight's "after work quick-and-dirty robot project." I hope you enjoyed it!

Adrenalynn
05-16-2008, 01:12 AM
Definitely!

A smaller version of a much larger project I'm working on right now.

Thanks for sharing it!

[edit] Oops, you already answered that question! [blush]

Adrenalynn
05-16-2008, 02:34 AM
You know, I wish you guys would have more spare time... I never would have considered those little gearboxes, until I watched them in action in your video. Now I have to buy them immediately for a project I woke up wanting to do. (Not the larger project mentioned). It's these kinda little project videos that really sell stuff I wouldn't otherwise consider. Sometimes I just need to see something work to consider the possibilities. Personal limitation...

So anyway - a special thanks!

Alex
05-16-2008, 08:28 AM
Sorry Dave, TR employees are excluded from entering the contest:p

Pretty cool stuff though man! I wish I stayed a bit later last night to see this, haha!

lnxfergy
05-16-2008, 09:07 AM
You know, I wish you guys would have more spare time... I never would have considered those little gearboxes, until I watched them in action in your video. Now I have to buy them immediately for a project I woke up wanting to do. (Not the larger project mentioned). It's these kinda little project videos that really sell stuff I wouldn't otherwise consider. Sometimes I just need to see something work to consider the possibilities. Personal limitation...

So anyway - a special thanks!

The little robot in my trio that I posted about the other day uses those same motors. The bot is 6" diameter and uses a 7.2V sub-C battery (like in the Mini-T R/C car). Amazingly, it moves about a foot a second, and can still climb a 20 degree incline at about 4-6" per second.

-Fergs

Adrenalynn
05-16-2008, 10:08 AM
Good report, thanks! I'm well-sold on these wheels/motors for specific applications.

Sorry to jump on your thread, Dave. I was just really surprised to see these motors/wheels work this well this easily. My mis-pre-conception.

Dave
05-16-2008, 11:26 AM
Good report, thanks! I'm well-sold on these wheels/motors for specific applications.

Sorry to jump on your thread, Dave. I was just really surprised to see these motors/wheels work this well this easily. My mis-pre-conception.

Jump on my threads all you want. ;) I'm glad I was able to show you something useful.

They're great little motors. They were designed to be used in toys, but don't hold that against them.

Droid Works
05-18-2008, 10:57 PM
Very cool, I often find my self doing the same thing. Macgyvering together a robot out of spare parts...lol

LinuxGuy
05-19-2008, 01:05 AM
You know, I wish you guys would have more spare time... I never would have considered those little gearboxes, until I watched them in action in your video.
I'm thinking about those gearboxes for my nano-RSR, which will be under 3" square. I think it would carry a single board controller and some sensors. Something like maybe a Hammer-RDP with one stack board comes to mind. :happy:

8-Dale