15mm Shaft 900-Degree Stopper
Created today
Description
A compact, print-in-place traveling nut mechanism designed to mount onto a 15mm diameter shaft.
This stopper locks rotation exactly at 900 degrees (2.5 turns) in either direction. The inner blue sleeve slides over your 15mm shaft and secures with a standard M3 bolt and captive nut, while the outer orange traveler moves up and down the internal threads as the wheel turns.
Fitment and Constraints
- Host Shaft: 15mm diameter. The bore is modeled at 15.2mm to allow for a snug fit.
- Rotation Limit: Exactly 900 degrees (2.5 turns), enforced by rigid top and bottom flanges.
- Assembly: Print-in-place. The mechanism prints fully assembled with 0.4mm radial clearance in the threads, permanently capturing the traveler nut between the outer flanges so it cannot back off.
- Installation Requirements: You must have a fixed block or housing wall nearby for the traveler nut's side tab to ride against; this prevents the nut from simply spinning with the shaft and forces it to travel linearly.
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