19 replies to this topic

[Eric Burdo]

This looks interesting...



4WD Arduino Compatible Mobile Platform

From Makershed. Includes the Chassis, wheels and motors. I may have to get one with my next order...

[Chris Seto]

Yeah, that's cute and all, but mine goes 35-45MPH and has a brushless motor http://www.tinyclr.c...orum/1/505/#/1/

[greg]

Yeah I am grumbling already about this. Chris and I (and Hai) have been working on our Stampede robots and one of our big issues is the electronics tray and then something like this comes along. Kind of slow though - only 90cm/s (~3 feet/second) which is pretty darn slow for what we're planning on doing. Having a nice solid electronics tray would be nice though. I'm working with Lexan right now but would love aluminum.

[Eric Burdo]

Sounds like a good starter kit for me then, but the speed of that other one does sound nice. For $70 (chassis plus motor shield)... hmmm....

[Eric Burdo]

Yeah, that's cute and all, but mine goes 35-45MPH and has a brushless motor

http://www.tinyclr.c...orum/1/505/#/1/

Sounds cool... got some pictures?

[Chris Seto]

Sounds cool... got some pictures?

I do, but I can't post them here because the picture feature is disabled. I have some stuff on my blog: chrisseto.com

I'll have more soon, right now everything all taken apart waiting for the new motor to arrive.

[Eric Burdo]

I do, but I can't post them here because the picture feature is disabled. I have some stuff on my blog: chrisseto.com

I'll have more soon, right now everything all taken apart waiting for the new motor to arrive.

Thanks Chris... I just scanned those... looks like a fun project (bit complicated for me at this point... still learning to control PWM stuff).

[Chris Seto]

Yeah, it is a pretty complicated project. We are working on the PID controller to get the robot to steer onto a heading. Other than that, the drivers for the RX, servo, and ESC are already coded.

[greg]

Yeah, it is a pretty complicated project. We are working on the PID controller to get the robot to steer onto a heading. Other than that, the drivers for the RX, servo, and ESC are already coded.

And working on the GPS code. And working on determining what that target bearing is supposed to be (based on GPS and IMU posititioning). And working on collision avoidance. And figuring out how to power everything properly (go go MarkH circuits!). Oh and working on the stupid electronics tray (I say stupid because somehow I got the short straw on that one).

And trying to get all this done before we get to winter and I can't drive an RC car outside anymore because of snow.

[Chris Seto]

^^^ There's a reason why I gave you the task of doing the electronics tray It's not like there is really any longer straw here. The PID controler is going to be just as difficult, it's just that I don't really have the tools/knowledge to work plexiglas. Coding the PID controller is a lot more accessible for me.

[greg]

^^^

There's a reason why I gave you the task of doing the electronics tray

It's not like there is really any longer straw here. The PID controler is going to be just as difficult, it's just that I don't really have the tools/knowledge to work plexiglas. Coding the PID controller is a lot more accessible for me.

Yeah but I don't have access to a CNC machine like *cough* some others do!

[Mark H]

Btw Chris, i bought a book on SolidWorks for that other 4wd thing we were talking about

[Chris Seto]

Very nice, Mark. We'll talk about this tonight (AKA, later this morning for you). I'll be on GTalk, just ping me if I don't ping you first. For everyone else -- Mark and I are developing something you guys might like

[greg]

What am I, chopped liver?

[Chris Seto]

Certainly not, Greg, you're in on it too. I'm not sure either of us have told you yet, though. I'll send you an email tonight.

[greg]

So this is another project? It! Not sure my wallet can handle another...

[Chris Seto]

Not another project, yet. We are still looking at designing it and sourcing parts. If I understand Mark correctly, this is a commercial project.

[Omar (OZ)]

Not another project, yet. We are still looking at designing it and sourcing parts. If I understand Mark correctly, this is a commercial project.

You guys like to handle things Secret Labs style? Building up the mystery huh? Can't wait to see it!

[Mark H]

Lol, more it was just a convenient place to chat lol

[blackstag]

This looks interesting...



4WD Arduino Compatible Mobile Platform

From Makershed. Includes the Chassis, wheels and motors. I may have to get one with my next order...

I own the chassis in the picture it good quality build and a nice platform. I would suggest you start with a rechargeable battery to begin with the battery tray it comes with is located inside between all 4 motors.