CHAMP v2 -no support material!-

grabcad

Introducing a new version of CHAMP for the International Space Station! This model can be printed without any support material. The upper and lower parts need to be pressed together, ensuring a strong bond. Ensure you attach the moving components before pressing, as it's difficult afterward. This design features an ingenious mechanism that provides a robust clamping force and stability with the handrail. If the excenter clamp is too large, it will flex when the rail is clamped, resulting in a tighter connection. The model consists of four parts, takes 8-9 hours to print, and requires approximately 100 cm3 (6.1 in3) of material. Solid printing of upper and lower clamps is crucial for stability. It was printed on a Stratasys uPrint with the same resolution as the ISS printer. Due to time constraints, it hasn't been tested yet. The build direction is similar to the photo provided. Considerations for improvements include honeycomb structures in specific areas, reinforcement of the 2mm wall between the excenter handle and moving clamp, and increasing friction in the Z-direction with more clamping surface. When locked, the excenter lock should touch the handrail for optimal performance, preventing rotation as well as clamping. Unfortunately, this feature couldn't be implemented due to the deadline.