Let's Make Robots!

4WD

Fetch a beacon, Follow Me (beacon), and obstacle avoidance
Using a
Work in progress. I don't know if this will be 2 robots or one yet. My wife got me an OWI Robotic Arm kit and a DFRobot 4wd Chassis for christmas. I picked up … Read more
A very capable Robot, that can be remote controlled or rely on numerous sensors to be autonomous.
Using a
Autonomous Security Rover              by Arthur Gabanyi http://modern-robotics.com/ Read more
Hi, this is my test platform for my grade project on the University, since the University have a Lynxmotion rover with the AL5D robotic arm and I've already managed … Read more
Robot for some airsoft senario like demining
Using a
Hello, After 3 years of trying into control amp eater motor cc ccw i have finaly reach my goal (after some fails) Here my project for an remote operated robot that … Read more

Dagu 5rover arduino code

Hello i Got the dagu 5 rover and the 4wd motor controller, attached it to an arduino,  i wrote code to use it but it doesn't seem to be functional

 

volatile int rotaryCount = 0;

 

#define INTERRUPT0 0  // that is, pin 2

#define INTERRUPT1 1//pin 3

 

#define DIRECTIONA 4

#define MOTORA 5

 

#define DIRECTIONB 7

#define MOTORB 6

 

int QEM [16] = {0,-1,1,2,1,0,2,-1,-1,2,0,1,2,1,-1,0};               // Quadrature Encoder Matrix

 

Object avoidance via sonar, scares the cat
Using a
May 5, 2013 update My robot has incrementally improved as I continued to learn what I could do with the arduino.  I followed a lot of your advise and removed all … Read more
I started this robot a couple of weeks ago, it's just plywood, plastic wheels, some hitec 615mg servos that were laying around modified for continous rotation. … Read more

Differential steering on a 4WD platform

Just a quick question: is differential drive achievable with a 4WD platform? It's an outdoor robot (half a meter in both width and length) and the tires are probably going to be rubber ones. The wheels will be fairly close but I'm still afraid the grip from the tires will be too much. On the other hand I don't want to invest in a complicated drive system.

Update April 1st   Well the dust has cleared and I have finished and submitted my Google Science Fair project and I very happy with it.  I have added the site … Read more

Dagu Rover 5 shedding tracks on turns

Hi guys, Hope this is the right forum. I'm building a robot based on the Dagu Rover 5 chassis and experiencing problems with it shedding it's tracks. The motor angle is about 45 degs. Anybody had any experience with these and stopping the tracks coming off (even on smooth hardwood floor) during a turn? I'm hoping someone has done a modification or something to keep them on, other wise this Robot may be getting itself converted to tires :-( Thanks guys Shane
  Hi all, Behold my new little toy, the CRAB. This is my attempt at creating a 4WD rover like bot, the main target here beeing making use of the little motors I … Read more
Ultrasound navigation, reacts on nearfield bodyheat, detects light
Using a
This is my first autonomous 4WDBOT on a DfRobot Base.I try to keep all mountings as clear and functional as possible - no decoration parts. Update: After some … Read more

A forced change of plans

A couple of months ago I started talking here about building a hexapod. I had it all planned out, made drawings, chose materials, hardware, electronics, made myself a shopping list and was good to go.

4WD vehicle with a 3D printed ball link
  Four wheel drive vehicles have always excited my imagination, and this time I joined two Farrusco (Dagu's) chassis in front to front as you can see in the … Read more
Navigate about using ultrasound sensors.
Using a
This is my robot based on the Arduino Mega board.   Read more
This is my new project, a semi RC controlled 4WD rover. The pan/tilt-unit for the camera and the camera itself are still missing. I've ordered a KX171 G2 color CCD … Read more
Cheap 4WD off road chassis for your robot
The chassis of the "Rebound" is perfect for small off road robots. The PCB has a radio receiver and dual "H" bridge. This walkthrough shows you how to make the … Read more

Urban RoverBot by MakerDino of SoR

This robot was made by MakerDino fellow member of SoR Forum. I loved the design so I wanted to share it with you guys.

 

Arduinobot

looks like an interesting new Arduino robot platform. A real 4 wheel-drived robot with Atmega168 processor, Zigbee interface, quadrature encoder wheel encoders.

Sorry, embedding Video from Flickr doesn't seems to work, so here are the links:

4 wheels with 180 degrees turning

I saw a future concept car on a presentation on a documentary on Discovery Channel.

It had 4 motorized wheels, One in each corner (like a conventional car). But each wheel could turn 180.

It would mean that your car could drive in any direction, and rotate on the spot. Here's a link to a similar concept

Testing what one can do with 4W differential drive, and steering by .. erh..
Using a
Update: Just a small new video, nothing really. Just my studies, I use the platform for different testing of stuff. Video and slow motion helps :) While playing … Read more