T-800 terminator arm with wrist movement

thingiverse

I found a similar file at http://www.thingiverse.com/thing:645914 on thingiverse. I remixed some components to improve its functionality. The fingers can perform both adduction and abduction movements, while the wrist can flex freely. With spring-loaded pistons, it returns to its original position automatically. The hand pistons are not equipped with springs; instead, they're made from 2mm aluminum rods. I created a new elbow piece that allows the arm to rotate in pronation and supination. If you've already printed the previous version, I've included an adapter piece for the elbow connector. The upper arm and elbow can move freely in flexion and extension. A shoulder part will be attached to the upper arm. This is not a complete replica; it's just my attempt to familiarize myself with 3D printing and modeling. It's still a work-in-progress. I've used Repetier and Slic3r without any issues, but other slicers might struggle to slice these parts. If you encounter problems, please contact me so I can try to adjust the files. I've uploaded additional files, including SketchUp models. ---UPDATE--- I've uploaded the missing components: the shoulder top part and the upper arm cover STLs. Print Settings: * Printer Brand: * Printer: * Rafts: No * Supports: No * Resolution: 0.3 * Infill: 30% * Notes: Most parts can be printed without support. The finger tips require support, as do the "old" elbow components. Post-Printing: Building Tips: The three small pistons need to be fitted with springs so they can move and return to their original position. To assemble them: 1. Take the outer part. 2. Insert a spring. 3. Place the piston part in the outer part. 4. Add another spring on top of the piston. 5. Slide the piston cap onto the outer part, closing it securely. If necessary, shorten the inner piston part. 6. Glue the two parts together, using a balplate for calibration to ensure the right depth. The large piston is slightly too tall, but its length depends on the springs used in the small pistons. I've left it at this size to accommodate different spring lengths. To assemble: 1. Cut off a small section from the piston. 2. Glue the top part onto the piston. 3. Heat and bend the piston ends inward to fit snugly with the piston balls (handpart). 4. Attach the second handpart on top of the part with the balls. The upper arm can be bolted together, starting with the shoulder connector rod in place. The anterior piston requires adjustment; I'm working to fix its alignment. This doesn't affect assembly but might cause issues later on. To assemble the shoulder: 1. Place the shoulder connector first. 2. Ensure the bold wire connecting it is not too long, or Shoulder Part 1A will not move properly. 3. Push Shoulder Part 1B through the gap between the combined shoulder parts. 4. When Shoulder Part 1B rotates freely, glue the endcap (Shoulder Part C) onto each side.