Experimental Dual-Extrusion Buddy 4000 Face

Happy 2014 everyone!

To start off the new year, here was a small and fun experiment we did lately. Damian G all the way from Sweden has a Makerbot 2X, and he wanted to try printing out pieces for Buddy 4000 in dual-extrusion. We worked on the files and sent them to each other via email. After a few tries, there was a good result!


The layers of the accents didn’t have to be embedded very far into the other layers. They also had to extend a few layers higher than the base print, otherwise the filament would get mushed together. It seems quite tricky to align two extruders.

Thanks to Damian for having the patience to try this out with us! Pretty fun!

Introducing Buddy 4000

Buddy 4000 is a classy robot chassis designed to express robot emotions with an artistic flair. 😉

See it in action in this video!

Buddy 4000 is available NOW in the RoboBrrd Store! Special introductory sale, $5 off!

It is everything you are looking for in a robot chassis that looks like a classic robot. Perfect as a chassis for a small project, or just a robotic statue.


There is documentation available for building the robot, example electronics, and programming. Check out the main page for Buddy 4000 to see them all.

Open Source Hardware

Yes, Buddy 4000 is OSHW! You can view the .stl’s in our 3D viewer mode, and download an archive of all the files. Hopefully this will let everyone be able to make their own Buddy 4000 (or even a derivative of it). Send pics if you do! Go check it out.

Name Your Price

There is a special ‘name your price’ feature on the Buddy 4000 store page. The extra money is going towards our robotics fund / Maker Faire NY travel fund! We really appreciate your help, and hope to see you at Maker Faire NY!


Buddy 4000 was created to look like a modern version of the old ‘tin toy’ robots. We put much effort into the design of the ‘bot, so hopefully it meets this goal. It took a while to finish this off, especially with all the documentation. Enjoy it! If it makes someone smile, it has been worth it.

Thanks to all the twitter people for following this project over the course of developing it. It’s been fun, and the replies were always interesting to read!

Now go get your Buddy 4000 here, or make your own here!