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Weekend Project: Automate Easter Egg Decorating with the Sphere-O-Bot

Reading Time: 3 minutes

Why paint your own Easter eggs when you can have a robot do it for you? The Sphere-O-Bot is an open source project from Evil Mad Scientist, and has been modded to draw intricate designs on your Easter eggs. 

The tradition of painting Easter eggs is one that many families hold dearly. There’s nothing quite like sifting through these dyed hardboiled eggs to find the chocolate imposters hidden in your Easter basket.

Let’s face it, kids love painting their Easter eggs. But you know what else they love? Robots. The Sphere-O-Bot offers the best of both worlds. This popular open source robot has been modded into a device that will decorate your eggs with any design you choose.

The Sphere-O-Bot is described as a simple 2 axis drawing machine that can draw on spherical surfaces. This means you can use it to decorate your Easter eggs, ping pong balls, Christmas decorations, and more.  Aside from the robotics kit, all you need is to 3D print the various parts and input the correct code.


Sphere-O-Bot: What Do You Need?

You can either try to source the Sphere-O-Bot parts independently or simplify things by ordering the entire build kit from jjRobots for $110. Here’s everything you need to build your own Sphere-O-Bot, all of which is included in the kit:


Sphere-O-Bot: Putting it all Together

There are quite a few steps involved in putting the Sphere-O-Bot together, which can be summed up in the following diagram:


You’ll start with the drawing arm and the left egg support, which is where the servo motor will be installed. Next, fix the stepper motors and assemble the X axis rod to the main frame. Once everything is placed in the correct position, it’s time to connect the electronics and cables.

Thankfully, the electronics provided in the Sphere-O-Bot kit require no soldering, making it easy to hook everything up. Lastly, program the Arduino Leonardo and start learning for to control your robot. Of course, you’ll need to view the expansive assembly guide to get things right, but we just wanted to give you a quick idea of how easy this project actually is.

You can find the full assembly instructions, along with the necessary STL files and code, on the jjRobots website. Watch the video below to learn more! And Happy Easter!

License: The text of “Weekend Project: Automate Easter Egg Decorating with the Sphere-O-Bot” by All3DP is licensed under a Creative Commons Attribution 4.0 International License.

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