3D printer for DIY Reprap Kossel delta Rostock putt tension spring damping spring Printer Parts

1. Identify the Pairs: Your delta printer has 6 diagonal rods organized into 3 parallel pairs (one pair per vertical tower).
2. Determine Placement: You need 3 springs total (one spring per pair of parallel rods). Position the spring horizontally between the two rods, usually about 1/3 of the way up from the print head effector.
3. Secure the Hooks:
   • If your carbon fiber push rods have dedicated anchor pins or notches, slip the 5mm end rings of the spring directly over them.
   • If your rods are smooth, wrap a small zip-tie (cable tie) tightly around each of the two rods. Leave a tiny loop in the zip-tie, and hook the ends of the tension spring into those loops.

Why This Upgrade is Important

• Eliminates Joint Play: Trapped air gaps or wear in ball joints allow the effector to tilt under the sideways forces of the Bowden tube. The spring constantly pulls the joints taut.
• Dampens Vibrations: Acting as a stabilizer, it absorbs sudden inertia shocks from high-speed travel.
• Improves Dimensional Accuracy: Keeping the rods perfectly parallel and seated prevents the print head from shifting slightly off its calculated path.