Otto Bot / Otto Saurus Mod

Features 💻 Programmable with Otto Blockly or Arduino IDE 👣 Walks & dances 🦇 Avoids obstacles 🔊 Makes emotional sounds and melodies more details at https://www.ottodiy.com/

Print instructions Otto is very well designed for 3D printing, so it won't give you trouble if you follow these common parameters:

FDM 3D printer, PLA is enough. No supports or rafts. Resolution: 0.2mm Fill density 15%

All parts in total use 100g approx., equivalent to 35m of regular PLA 1.75mm thickness. It should take around 4 hours to 3D print a full set of parts for one Otto, even less with optimized settings depending on your printer and slicer.

List of Parts 🖥 Otto Nano Microcontroller + I/O board 🔌 USB cable 🔋 Rechargeable 16340 battery booster (do NOT use Alkaline, not enough power) or use (soldering required) Toggle or 8x8 push switch depending on the body you print ⚙ 4 x micro servo motors with set of screws. 🦇 Ultrasonic sensor HC-SR04 🔊 Buzzer passive Ø12mm 🌈 8x DuPont female-to-female jumper wires Small Phillips screwdriver magnetized 3D Printed head 3D Printed body 3D Printed legs (2) 3D Printed feet (2) How to build video

How to code video

Looking for more stable legs? Print these: alternative robot biped legs Expand into a Humanoid robot or Smart robot Change the legs to Wheels robot or Quadruped robot Change the head to Emotional LED eyes robot Make the head rotate with this rotating head expansion or simply decorate with these robot face accessories Avoid hassles with the new HP Robots Otto! We invested lots of time and resources to provide open-source code, software, and hardware. Please support this project by just following us, giving us a ❤ Like and share, and you are welcome to be a part of this friendly community of robot builders, teachers, and makers.

Join our HP Robots Otto: Remix Challenge click here

Otto Saurus

Otto-saurus is a dino-inspired add-on kit designed to fit seamlessly onto the original "Otto DIY build your own robot". It transforms the familiar friendly bot into a tiny walking dinosaur—complete with a playful silhouette, chunky limbs, and just enough attitude.

This remix stays true to the spirit of Otto: simple, accessible, and fun to build—while adding a layer of character that makes it feel like a completely new companion.

🖨 Print Settings Layer Height: 0.2mm. Infill: 15%. Perimeters: 2. No supports are needed. ✨ Features Snap-on design Fits the standard Otto DIY build with no modifications required. Print-friendly parts Designed for easy printing with no supports needed—no post-processing, just straight to the fun part.

🛠 Build Notes Compatible with the original Otto DIY build your own robot base. This particular build in these images uses OttoDIYBodyV11_Booster (square switch) and OttoDIYHeadV13_NanoSHIELD; legs and feet are the default files.

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