If you're engaged in the development of the XR1, you're likely committed to enhancing its performance continually. The latest MK2 update focuses on reinforcing the core strength and increasing height by 20/30mm, a subtle yet impactful improvement and it also correct arm lengh design. While the MK1 version may suffice if you're content with its performance, opting for the MK2 can unlock additional benefits.
Key enhancements in the MK2 update involve a dual-bearing design in the core, mirroring the impressive shoulder design. This modification ensures smoother operation and bolsters the core's strength, particularly beneficial in scenarios where the robot might encounter falls during walking training. Consider transitioning to the MK2 for an optimized experience, especially if maximizing performance is your goal. The image above shows new and old side by side.