HOG Drive - Hemispherical Omnidirectional Gimbaled Drive

by i-make-robots, published

HOG Drive - Hemispherical Omnidirectional Gimbaled Drive by i-make-robots Feb 19, 2013


All my designs & progress available @ [Marginally Clever](http://marginallyclever.com)

As seen on [Hackaday](http://hackaday.com/2013/02/28/3d-printed-hog-drive/)

They were first researched in 1938. Curtis Boirum built one that got on Hackaday. Now I bring you the plans for a model that you can print and build yourself. Use one to make an awesome RC car. Use two to make an RC car that can move in any direction. I'm using one to make a line-following robot. It has about 15 degrees of movement on either axis.

If you use one of my designs, please let me know! I'd love to see what you make with it and share with others who are interested.

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FYI, the 5v0.3a motor is too weak. I'm testing more powerful motors now.

There are a ton of applications. I build these mini robots so that people can use them in larger applications. More bigger interesting robots faster!

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i am still correcting this model, it is missing a few holes. If you can figure out where to drill then add
- two hobby servos
- one Tamiya 70171 kit (cut to size)
- a pair of single-arm servo horns (or amputate a double arm)
- 3 10mm M3s
- a pair of zip ties
- a 5v0.2a DC motor

Assemble as in the pictures. Expect to file a bit because it's a very tight fit.

I haven't found a good way to attach the hemisphere, please comment with your thoughts.

The body of the vehicle will be made from folded cardboard with a pair of free-spinning wheels on the back. I'm using QRD1114 IR sensors for the line detection and an Arduino to do the homework.


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i-make-robots on May 14, 2013 said:

FYI, the 5v0.3a motor is too weak. I'm testing more powerful motors now.

danielpublic on Feb 23, 2013 said:

Now this drive is something for a Libre open source robot vacuum cleaner!

i-make-robots on Feb 26, 2013 said:

A similar principle is used to drive the large floor polishing machines you might have seen in schools and other institutions. the buffing device on the bottom is also the drive system.

yzorg on Feb 21, 2013 said:

use this as a flexible submarine drive!

Zaibach on Feb 28, 2013 said:

I was thinking more ROV camera mounting but seems like we are in the same ocean :)

i-make-robots on Feb 22, 2013 said:

I like the way you think. Find me a waterproof servo and I'll do it.