Petoi Bittle/Bittle X is the popular platform and Petoi is the OpenCat project that has been empowered by its community. This gives you the ability to create, organize, formulate and customize a variety of 3D-printed accessories for thousands of awesome DIY robot dogs and cats. The amount of DIY projects you can create is phenomenal like from beetle horns to fox heads, and Bittle stands to LEGO covers, you can use our free open-source 3D-printed accessory designs to enhance your robot dog’s capabilities and appearance. This article will present a curated list of top 3D printable upgrades for your smart robot dog, along with free design links to the STL files, enabling you to start printing right now and get them done quickly.
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In order to bring your Petoi robot to life with these fantastic accessories to 3d printing them, you would need access to a 3D printer. If you do not have one at home, don’t worry! You can easily download the free STL files provided in this post and use online 3D printing services to get them printed. Many users also explore local maker spaces or community workshops, which often have 3D printers available for use. These options make it accessible for anyone to create custom accessories for their DIY robot dog. Note that all the accessories mentioned below are compatible with both Bittle and Bittle X.
Stand For Dog

One of the most popular and useful accessories for Petoi Bittle is the 3D-printed stand that you can see above. This stand allows you to securely place your Bittle robot while building and programming it. Apart from everything else it’s a fun project to begin with. Educators especially love using this stand during school robot projects as it provides a better view and understanding of the Petoi Bittle’s movements. The stand features built-in calibration references and enables the robot to move its legs freely during programming without causing any disruptions. Here is a video showcasing the stand in action.
3D Printing Lego Accessories

Enhance your DIY robot experience with the robot cover. This LEGO cover serves as an alternative backside for Petoi Bittle, allowing users to expand and customize it with various LEGO bricks. With this cover, you can attach custom LEGO boxes to your Bittle, enabling it to carry or transport items from one place to another. This accessory is particularly popular among educators and young students as it sparks curiosity and encourages imaginative project designs and challenges.
3D Printing Hooks For Bittle
Take your Bittle off the ground with Highbar Hooks you can see the project here on Git as well! These hooks enable your DIY robot to perform pole spins and rotations. By 3D-printing and attaching these high bar hooks to Petoi Bittle, you can hang it from a horizontal pole and maneuver it to spin and rotate. These hooks are a fantastic way to explore unique robot movements and understand the three-dimensional logic behind robot mechanics.
3D Printing Wide Feet

For even more challenging terrains, equip your Bittle with wide feet. While Petoi Bittle is known for traversing various terrains, 3D-printed wide feet provide additional stability and a higher stance, enhancing the robot’s sturdiness and performance. See the details at github
Animal Accessories
Petoi Bittle is a small, smart quadruped robot with a lot of character and distinct features. While the original form of our AI robot pets is already endearing, you can 3D-print various tiny animal accessories to give your quadruped a new avatar and keep the fun going. These small accessories are easy to put on and transform your pets into different creatures for interactive play, programming, and learning.

One popular accessory is the 3D-printed beetle horn. After printing the horn, simply remove the dog face and attach the beetle horn to your robot. The horn can be used as an arm to push objects and engage in friendly battles between Bittles. The beetle horn is an excellent way to relearn and explore Petoi Bittle’s movement, spatial awareness, and robot mechanics. In the above image you can see 3d printed dog-head but there are many other things that you can 3d print.
You can also change your robot pet’s appearance with a fox head. Just detach the Bittle dog head and replace it with the fox head to unlock a completely new experience and personality for your quadruped pet.

