Helical Gear for Sliding Door Mechanism (50 mm)

Description:

This is a precisely replicated helical gear used in an existing sliding door system. The original gear was part of a commercial mechanism – this STL model was reverse-engineered based on the real component and is now provided for replacement or repair purposes.

The helical tooth profile ensures smoother operation and improved load distribution compared to straight-cut gears, making it ideal for linear motion applications.

Technical Specifications:

Outer diameter: approx. 50 mm

Width: approx. 16 mm

Tooth type: Helical

Inner bore: designed for standard shafts (can be post-processed)

File format: STL (based on original gear dimensions)

Print Settings:

Required material: PA6-CF (Carbon fiber-reinforced nylon)

→ Do not use PLA or PETG – these materials are not strong enough for this application.

Layer height: 0.2 mm

Nozzle size: 0.4 mm

Support type: Tree supports recommended

Orientation: Lay flat, teeth facing upward

Infill: ≥ 40 % (depending on stress level)

Notes:

This is not a standardized gear – it's a functional reproduction for a specific purpose. It has been successfully printed and tested with a Bambu Lab P1S using Polymaker PA6-CF filament.

Feedback welcome:

If you’ve adapted, improved, or tested this gear, feel free to share your remixes, photos, or usage feedback. Your contributions help improve the design for everyone.