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If You're looking for some more cool lego robots, check out first lego league. http://www.usfirst.org/jrobtcs/flego.htm

On the subject of cool consumer robotics products, the VEX kits from radio shack are pretty cool.

Or, if you're into some really beefy robots and are willing to put out a couple thousand dollars, check out innovation FIRST's robotics website http://www.ifirobotics.com/. I'm a FIRST robotics mentor, and we use IFI's parts to build some pretty beefy robots in the 130 lbs range, im sure it could easily be adapted to anything you're looking for though, as long as you're using 12v motors.

For a second, I thought that was an FRC kit bot.

It's a basic robot for the FIRST Robotics Competition, made from a kit from IFI Robotics. IFI also does the backstage work for the Vex robotics stuff. FRC kits are sorta like Vex except with beefier motors and on a larger scale. Too bad the sensors in FRC kits are pretty lame (e.g. the kit has hall effect sensors, but no nice shaft encoders).

IFI is a company separate from FIRST and Radioshack. It was formed by former engineer mentors of the FIRST robotics competition who were unhappy with the control systems that were available at the time, so they made their own and formed IFI.

The electronic brains seem to come from another part of the same company...

http://www.ifirobotics.com/

(Also notice when you click on the Vex robots toolbar link, all the pictures on the robots have IFI stamped on the motors/sensors)

Think of your lawnmower as a BattleBot. You've got a drive system (wheels) and a "weapon" (the blade). Okay, it's not the greatest analogy, but we're talking about components of the same caliber, and I know a little bit about this type of robotics.

Building your mower from scratch would be something fun and geeky and not *too* difficult if you know how to weld and such. If you take this route, consider using battery power for the drive train and a small engine for the blade. I recommend electric power because it is easier to interface with a navigation computer and allows for easy reverse if you get stuck up against an obstacle. You could even use another electric motor for the blade. In any case, a good source of electric motors is NPC Robotics. They also have wheels you could use. I think a remote control system would be neat, even if you don't want to drive it around all the time. You could use it to guide the mower if it's "lost" or as an emergency shutoff from inside the house. A manual override feature would be cool to just drive it around for fun, too. Of course, this makes things expensive. But a neat way to do this would be to use an IFI Robotics Isaac 16. This system includes a radio and transmitter plus a BASIC Stamp computer that is easily programmable and allows the reading of 4 analog inputs and 8 digital inputs (sensors on the mower). This would allow you to have, for example, an "RC startup" button inside your house that would remotely trigger the mower to begin running, then use the programming features for automated mowing. It could be both RC and autonomous, really. With that system, you could use a couple of Victor 883 speed controllers to regulate your drive motors. There's also a spin controller that would be perfect for your blade if that were electric powered. Otherwise, a simple gas engine with a servo on the carburetor throttle would suffice for control of that.

If you don't choose to go with this (very expensive but neat) RC setup, you could use a much simpler BASIC Stamp. This is the "brain" of the Isaac 16, but minus the radio and PWM signal drivers (for speed controllers, servos, etc.). They run a lot cheaper ($150 for a basic setup) and are still very easy to program (a modified BASIC syntax) but you would have to wire your own interfaces to speed controllers. This can be done, but I have no experience with it. In any case, the BASIC Stamp would allow you to connect various types of sensors that you could use to gather data and then modify your path accordingly. The Stamp is probably a better choice than a Mini-ITX or similar because it is cheap, not overkill :-P and has all the programming tools set up, ready to go, and designed almost specifically for robotic applications.

So check some of that out. I hope that helps if you're looking to build something from scratch.

Oh yeah, if you're concerned about powering an electrical system for long enough to mow your lawn, a few 12 volt lead-acid batteries of the type used in motorcycles or smaller car ones will likely suffice. I believe they can deliver around 14 Amp-hours or so.

Think of your lawnmower as a BattleBot. You've got a drive system (wheels) and a "weapon" (the blade). Okay, it's not the greatest analogy, but we're talking about components of the same caliber, and I know a little bit about this type of robotics.

Building your mower from scratch would be something fun and geeky and not *too* difficult if you know how to weld and such. If you take this route, consider using battery power for the drive train and a small engine for the blade. I recommend electric power because it is easier to interface with a navigation computer and allows for easy reverse if you get stuck up against an obstacle. You could even use another electric motor for the blade. In any case, a good source of electric motors is NPC Robotics. They also have wheels you could use. I think a remote control system would be neat, even if you don't want to drive it around all the time. You could use it to guide the mower if it's "lost" or as an emergency shutoff from inside the house. A manual override feature would be cool to just drive it around for fun, too. Of course, this makes things expensive. But a neat way to do this would be to use an IFI Robotics Isaac 16. This system includes a radio and transmitter plus a BASIC Stamp computer that is easily programmable and allows the reading of 4 analog inputs and 8 digital inputs (sensors on the mower). This would allow you to have, for example, an "RC startup" button inside your house that would remotely trigger the mower to begin running, then use the programming features for automated mowing. It could be both RC and autonomous, really. With that system, you could use a couple of Victor 883 speed controllers to regulate your drive motors. There's also a spin controller that would be perfect for your blade if that were electric powered. Otherwise, a simple gas engine with a servo on the carburetor throttle would suffice for control of that.

If you don't choose to go with this (very expensive but neat) RC setup, you could use a much simpler BASIC Stamp. This is the "brain" of the Isaac 16, but minus the radio and PWM signal drivers (for speed controllers, servos, etc.). They run a lot cheaper ($150 for a basic setup) and are still very easy to program (a modified BASIC syntax) but you would have to wire your own interfaces to speed controllers. This can be done, but I have no experience with it. In any case, the BASIC Stamp would allow you to connect various types of sensors that you could use to gather data and then modify your path accordingly. The Stamp is probably a better choice than a Mini-ITX or similar because it is cheap, not overkill :-P and has all the programming tools set up, ready to go, and designed almost specifically for robotic applications.

So check some of that out. I hope that helps if you're looking to build something from scratch.

Oh yeah, if you're concerned about powering an electrical system for long enough to mow your lawn, a few 12 volt lead-acid batteries of the type used in motorcycles or smaller car ones will likely suffice. I believe they can deliver around 14 Amp-hours or so.

Think of your lawnmower as a BattleBot. You've got a drive system (wheels) and a "weapon" (the blade). Okay, it's not the greatest analogy, but we're talking about components of the same caliber, and I know a little bit about this type of robotics.

Building your mower from scratch would be something fun and geeky and not *too* difficult if you know how to weld and such. If you take this route, consider using battery power for the drive train and a small engine for the blade. I recommend electric power because it is easier to interface with a navigation computer and allows for easy reverse if you get stuck up against an obstacle. You could even use another electric motor for the blade. In any case, a good source of electric motors is NPC Robotics. They also have wheels you could use. I think a remote control system would be neat, even if you don't want to drive it around all the time. You could use it to guide the mower if it's "lost" or as an emergency shutoff from inside the house. A manual override feature would be cool to just drive it around for fun, too. Of course, this makes things expensive. But a neat way to do this would be to use an IFI Robotics Isaac 16. This system includes a radio and transmitter plus a BASIC Stamp computer that is easily programmable and allows the reading of 4 analog inputs and 8 digital inputs (sensors on the mower). This would allow you to have, for example, an "RC startup" button inside your house that would remotely trigger the mower to begin running, then use the programming features for automated mowing. It could be both RC and autonomous, really. With that system, you could use a couple of Victor 883 speed controllers to regulate your drive motors. There's also a spin controller that would be perfect for your blade if that were electric powered. Otherwise, a simple gas engine with a servo on the carburetor throttle would suffice for control of that.

If you don't choose to go with this (very expensive but neat) RC setup, you could use a much simpler BASIC Stamp. This is the "brain" of the Isaac 16, but minus the radio and PWM signal drivers (for speed controllers, servos, etc.). They run a lot cheaper ($150 for a basic setup) and are still very easy to program (a modified BASIC syntax) but you would have to wire your own interfaces to speed controllers. This can be done, but I have no experience with it. In any case, the BASIC Stamp would allow you to connect various types of sensors that you could use to gather data and then modify your path accordingly. The Stamp is probably a better choice than a Mini-ITX or similar because it is cheap, not overkill :-P and has all the programming tools set up, ready to go, and designed almost specifically for robotic applications.

So check some of that out. I hope that helps if you're looking to build something from scratch.

Oh yeah, if you're concerned about powering an electrical system for long enough to mow your lawn, a few 12 volt lead-acid batteries of the type used in motorcycles or smaller car ones will likely suffice. I believe they can deliver around 14 Amp-hours or so.

Think of your lawnmower as a BattleBot. You've got a drive system (wheels) and a "weapon" (the blade). Okay, it's not the greatest analogy, but we're talking about components of the same caliber, and I know a little bit about this type of robotics.

Building your mower from scratch would be something fun and geeky and not *too* difficult if you know how to weld and such. If you take this route, consider using battery power for the drive train and a small engine for the blade. I recommend electric power because it is easier to interface with a navigation computer and allows for easy reverse if you get stuck up against an obstacle. You could even use another electric motor for the blade. In any case, a good source of electric motors is NPC Robotics. They also have wheels you could use. I think a remote control system would be neat, even if you don't want to drive it around all the time. You could use it to guide the mower if it's "lost" or as an emergency shutoff from inside the house. A manual override feature would be cool to just drive it around for fun, too. Of course, this makes things expensive. But a neat way to do this would be to use an IFI Robotics Isaac 16. This system includes a radio and transmitter plus a BASIC Stamp computer that is easily programmable and allows the reading of 4 analog inputs and 8 digital inputs (sensors on the mower). This would allow you to have, for example, an "RC startup" button inside your house that would remotely trigger the mower to begin running, then use the programming features for automated mowing. It could be both RC and autonomous, really. With that system, you could use a couple of Victor 883 speed controllers to regulate your drive motors. There's also a spin controller that would be perfect for your blade if that were electric powered. Otherwise, a simple gas engine with a servo on the carburetor throttle would suffice for control of that.

If you don't choose to go with this (very expensive but neat) RC setup, you could use a much simpler BASIC Stamp. This is the "brain" of the Isaac 16, but minus the radio and PWM signal drivers (for speed controllers, servos, etc.). They run a lot cheaper ($150 for a basic setup) and are still very easy to program (a modified BASIC syntax) but you would have to wire your own interfaces to speed controllers. This can be done, but I have no experience with it. In any case, the BASIC Stamp would allow you to connect various types of sensors that you could use to gather data and then modify your path accordingly. The Stamp is probably a better choice than a Mini-ITX or similar because it is cheap, not overkill :-P and has all the programming tools set up, ready to go, and designed almost specifically for robotic applications.

So check some of that out. I hope that helps if you're looking to build something from scratch.

Oh yeah, if you're concerned about powering an electrical system for long enough to mow your lawn, a few 12 volt lead-acid batteries of the type used in motorcycles or smaller car ones will likely suffice. I believe they can deliver around 14 Amp-hours or so.

A few people have mentioned that they would like to seem more autonomous robots in these games. A good first step seems to be the IFI Robotics control system.
This system basically puts a control computer inside the robot, and links to an input/output operator interface using 2 900 Mhz wireless modems. The Control system has 8 outputs, 16 digital inputs and 7 analog inputs. It can be programmed using PBASIC.
The operator interface has standard joystick controller ports, 25 led status lights, and a real-time voltage display.
The whole system costs $1145, which is a lot more than a normal RC control system, but it seems to be a lot more powerful and reliable, too.
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