Universal Servo Driven Tank Tracks

by jasonwelsh, published

Universal Servo Driven Tank Tracks by jasonwelsh Dec 27, 2012

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I am a firm believer in universal and expandable.

I have found tank treads to be an art form in itself!

Nothing was working for me off of Thingiverse as far as "Tank Treads" because most designs were already built for some robot or too big or too small so I needed something that was "Just right". And sturdy / easy to build....

So I made some universal ones with the idea that others might be in the same boat.

These are for small to medium sized bots if your bot is larger than 12in by 12in I would find a different build though.

6in by 6in for the smaller cap.

They are test driven and work great!

Want to buy the Kit?


You will need a

42 x 39.5 x 22.5mm
Wire length: 30cm
Weight: 44g

Servo with full rotation for this build
The rest of the info is in the videos below

I have opened up a new youtube for inventing and support for "things".

Here is total support if you are building this.

To make straight Pla Spikes watch this video


I am hoping to have them as a kit that you can purchase on my etsy site in the next few days.

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Thanks for sharing! We made some robots with this tank tracks and it all went awesome!

Has anyone else made one of these? lol

This is badass. But... run by a servo? Does a full rotation servo = continuous rotation? I've never used a full rotation servo, I didn't know they could go around more than once.

There is no Scad the blender file is included you would just need to duplicate out the chain to get the measurement for the chassi. You would also need 2 idlers if you went any bigger to.

For the pla question should not be a problem Just know melted PLA will melt pla around it. I cant think of one thing that might effect though in this model. The ABS / PLA is a great combo because PLA melting point is way lower than ABS. So if you make a mistake you can always just cut off the rivot head. There will be non of that for you however.

It is a very well crafted model. Thank you for sharing it with everyone. I see that you have made it in ABS plastic and used the PLA spikes with it. Do you foresee any problems in assembly if I print the whole model in PLA?

Can you please share the chassis scad file as I wish to make a longer one.

Clever use of filament to pin each link together.