I like omni wheels. I personally like the triangle layout for these kind of omni wheels. Peoples first impression is usually to think it shouldn't be able to move.
You could get you bot fully "omni" with just one more motor controller, but you need to switch to a triangle configuration (and pretty much have to rebuild your bot).
@erco, I don't think xnonox is using "Vex" omni wheels. I don't think I've ever seen those specific omni wheels before. The original toy much have been unusual.
achieving rotation while translating in a straight line, quite a kinematic challenge!
I thought I had put that particular use of time out of my mind.
Dang it. Another item for my todo list. (I think I could do it too.)
Edit: Was the rotation and translation under manual control or did the programmer program the robot to move in a straight line while rotating? If it's the former, then I've done that already. I want to update my robots code to be able to rotate as it travels in a straight line autonomously.
I put a Ping type sensor on my robot for obstacle detection but it had a limited field of view. I thought of adding a servo to rotate the sensor but thought it would be better to rotate the whole robot since it didn't matter which way was "front". If, I mean when, I get back to this project, I'll probably add a circle of LEDs so the "front" can have a visual indicator.
yup , the wheels were pulled off from two set of tyco tri-clops.
I just didnt have the 3rd motor control when i design this robot.
I didnt know the tri-clops can do spinning while moving in a straight line.
I am very impressed too.
I ll definitely add this move to my robot.
Comments
agfa
4 omni wheels
camera, Basic Stamp board, 2 batteries, 2 HB-25, PS2 controller receiver
The omni wheel is from a toy that I bought at goodwill
Thinking to add two more motor controller, so I can use the full potential of the omni wheel
Neat bot, great use of surplus Vex omniwheels and hardboard!
I like omni wheels. I personally like the triangle layout for these kind of omni wheels. Peoples first impression is usually to think it shouldn't be able to move.
You could get you bot fully "omni" with just one more motor controller, but you need to switch to a triangle configuration (and pretty much have to rebuild your bot).
@erco, I don't think xnonox is using "Vex" omni wheels. I don't think I've ever seen those specific omni wheels before. The original toy much have been unusual.
http://www.amazon.com/Mattel-Triclops-Radio-Control-Vehicle/dp/B000QSNGL6
The programmer on the Triclops vehicle took great delight in achieving rotation while translating in a straight line, quite a kinematic challenge!
I thought I had put that particular use of time out of my mind.
Dang it. Another item for my todo list. (I think I could do it too.)
Edit: Was the rotation and translation under manual control or did the programmer program the robot to move in a straight line while rotating? If it's the former, then I've done that already. I want to update my robots code to be able to rotate as it travels in a straight line autonomously.
I put a Ping type sensor on my robot for obstacle detection but it had a limited field of view. I thought of adding a servo to rotate the sensor but thought it would be better to rotate the whole robot since it didn't matter which way was "front". If, I mean when, I get back to this project, I'll probably add a circle of LEDs so the "front" can have a visual indicator.
I just didnt have the 3rd motor control when i design this robot.
I didnt know the tri-clops can do spinning while moving in a straight line.
I am very impressed too.
I ll definitely add this move to my robot.