smiller29
We Are Getting Ready To Release Our Next Generation Open Source Robot The XR-2
The XR-2 robot platform, available at Robots Builder, is designed with user-friendliness in mind, emphasizing accessibility and ease of assembly. Developed to make robotics more approachable, the XR-2 has been meticulously engineered for easy 3D printing and assembly using standard components like servos and bearings. This platform is a significantly updated version of the XR-1, which was released last year. We've addressed several weaknesses from the XR-1 and added many new features to enhance the XR-2.
The XR-2 supports two single-board computers (SBCs). It uses a PC mounted behind the display in the chest to support Synthiam ARC, allowing for seamless robot programming and control. Additionally, it has a designated space for mounting a Jetson Orin Nano just above the PC below the neck, which enhances its onboard AI server capabilities. On the back, there is a custom servo breakout board featuring two Mega Minis and USB ports. The power supply consists of two 20V power tool batteries. The robot boasts 49 degrees of freedom and supports two cameras. There is also space to accommodate up to 10 small Arduinos or sensors in each leg, allowing for extensive customization. Almost every joint in the robot uses bearings to relieve structural stress from the servos. However, it is important to note that the XR-2 is a relatively heavy robot.
Our commitment to simplifying the building process ensures that enthusiasts and robot hobbyists of all skill levels can engage in constructing their own robots. We've invested time in perfecting the design, ensuring that users can quickly transition to the exciting aspects of teaching and programming their robots. The XR-2 is highly customizable, featuring a variety of hands and heads to choose from, allowing users to personalize their creations. To foster a collaborative and open community, we're proud to announce that everything about the XR-2 is open source, inviting users to contribute, modify, and share their innovations with the global robotics community. Get ready to embark on a journey of creativity and exploration with the XR-2!
For more information, check out the following link in a few weeks as we will be updating the website with the new XR-2 files: Robots Builder


Here are some more pictures of the XR2 build.
The wiring in this building is nuts because we added position feedback wires and temperature sensors in every servo to capture feedback. So every servo has 6 wires rather than the normal 3. So most builders won’t be doing this. So they will have half as many wires to deal with. LOL
@smiller29
very cool pictures .
The three-finger hand is probably the best solution - two fingers with the thumb in opposition, like a pincer. I think I read somewhere in the messages, an upgrade to 5 fingers hand. It looks more human, but it’s more complicated. I would stick with the three fingers if I were building XR-2. Anyway, really good work