QU-BD Two-Up hot end tensioner hinge

thingiverse

Here's how it all went down: The critical pivot that secures the bearing which battles the filament and drive wheel has a fatal flaw - it's just too thin on one end. No sooner did I try to tighten mine than disaster struck and it broke in half. You might wonder why this hapened, but I was caught completely off guard as my printer took its final breaths. In a bold move, I retired that faulty printer, salvaging the motor and circuitry for my next DIY project while dispatching the plastic parts to a trusted friend. Moving right along... Post-Breakdown Recovery Plan: First things first, you've probably already noticed that your printer has met an untimely demise. Don't be discouraged! Instead, follow these simple steps: assemble the thing with all haste and get two of them printed in quick succession.