Society of Robots - Robot Forum

Mechanics and Construction => Mechanics and Construction => Topic started by: radhoo on March 22, 2009, 09:17:28 AM

Title: TwinMotion - strong robot platform from scratch
Post by: radhoo on March 22, 2009, 09:17:28 AM
Hi Guys,

A few days ago I've completed the very minimum of what is to be a robot platform prototype.

After I've wasted months trying to make a RC truck work as a robot platform, I've decided to build everything from scratch, and improvise on my own.

[youtube]RMHHlKurDJQ[/youtube]

Basically I'm relying on two strong gear motors to the hard part.More technical details on my blog:
http://www.pocketmagic.net/?p=520 (http://www.pocketmagic.net/?p=520)

Also thanks to society of robots for the good tutorials. It got me started with my first AtMega steps.
Title: Re: TwinMotion - strong robot platform from scratch
Post by: galannthegreat on March 22, 2009, 07:42:06 PM
wow that is pretty sweet looking, good job on that. I can definately see some way of adding a 3-axis accelerometer/some compass sensor and some more coding to keep it in balance, that would be something really cool.
Title: Re: TwinMotion - strong robot platform from scratch
Post by: radhoo on March 23, 2009, 05:32:37 AM
Thanks.

What about powering a mini-itx board?

I would surely need some more power for video processing, but running a mini-itx on AA batteries pack, it sums up as too much weight.
Title: Re: TwinMotion - strong robot platform from scratch
Post by: galannthegreat on March 23, 2009, 09:37:15 AM
That would work nicely, just modify thew base with bigger tires and stronger mounts.
Title: Re: TwinMotion - strong robot platform from scratch
Post by: radhoo on March 24, 2009, 02:31:26 AM
Ok, but it will also require a car battery to last.

So I think I will get the mini-itx out of current plans, probably some ARM microprocessors might be the solution for video processing.
Title: Re: TwinMotion - strong robot platform from scratch
Post by: galannthegreat on March 24, 2009, 08:55:52 PM
I can see that working nicely. ARM MP's are definately very powerful, but look into the cost of the tools for working with them vs using your mini-tx. If you are willing to get them you'll find that you definately have one of the most powerful MCUs on the market.

eg. NDS uses an ARM 7 and an ARM9, and look what people are making them do.