I make a lot of robots with Parallax continuous rotation servos and I always wish that there were standard sized wheels that could be zip tied to the servo horns. Well, thanks to the power of 3D printing, I need wish no longer. I designed three different types of wheels for use with these servos in particular. One is a perfectly round wheel. The other two have treads (a wide tread, and a tight tread). I printed the tire on an Objet Connex 500 printer using a 30/70 plastic to rubber blend, and the hub using a 65/35 plastic to rubber blend. I made the hub use a digital material because it tends to be stronger than the pure Vero White plastic resin.

If you are using an extrusion based printer with ABS, I would suggest sticking with the round wheels and putting large rubber bands over the tire for traction.
Wohoo! You received the soft material!
Nice, I could actually use these on my next Arduino 4 servo vehicle. Thanks Randofo.

About This Instructable




Bio: My name is Randy and I founded the Instructables Design Studio. I'm also the author of the books 'Simple Bots,' and '62 Projects to ... More »
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