Segway type of rig


#1

Hi peoplez

I recently had a request from a client on doing a robot that moves just like a Segway. At first I thought it would be an easy task to set up the controllers but I was mistaken. I believe I need a rig that can move along a spline as it will turn a lot. Problem is that a Segway turns by rotating it’s wheels at different speeds. The outer wheel spins faster than the inside one and so on. How do I possibly set something like that up?

Can anyone point me at the right direction or maybe offer me assistance? I just want to be able to move the robot around and not worry about the wheels so much as they will take care of them selfs.

Thanks in advance


#2

See if this tank rig can help you.

https://vimeo.com/248706979


#3

wow, that tank rig is cool. Insane rigging skills.


#4

would it be possible to set it up with dynamics and connectors? Is that the way to go?


#5

Have not enough knowledge yet to say.


#6

You could use the Base80 magic wheel to get the correct segway wheel rotation. This is a bit of clever matrix math that rotates a wheel correctly in P when it’s moved in 3D. You hide the base80 wheel in your model and connect its p rot to your wheel. In this file I connected the wheels inside the base80 XP, although you could do it other ways. You have to set the base wheel to the real wheel radius.

https://www.dropbox.com/s/g9xy50778xjj94s/segway.zip?dl=1


#7

http://www.renderking.it/product/character-pack-robot/

Should be easy enough to customise and tweak as necessary.


#8

+1 for the base80 wheel, i’ve used variations on it over the last couple of years, it’s solid.


#9

Thank you all for the useful tips and directions! The Base magic thingie is something else.