Self closing safety door with lock GrabCAD

Self closing safety door with lock

39 likes
318 downloads
GrabCAD Marko Hriberšek Free 3D Printable
Created: Jul 15, 2025
RENDERING STEP / IGES

This is a self-closing safety door designed for installation at the top of stair platforms, typically found in industrial or maintenance areas. The door closes automatically after each use, minimizing the risk of falls by preventing open access to stairs.

To further enhance security, the door features a robust locking mechanism that can only be opened with a special triangular key. This restricts access to authorized personnel only, helping to protect sensitive or hazardous zones from unauthorized entry.

A permanent safety sign is mounted on the door, clearly stating that access is prohibited to unauthorized individuals. This visual warning supports compliance with workplace safety regulations and promotes awareness among all personnel.

The design prioritizes both passive and active safety:

Passive safety is achieved through automatic closure, preventing dangerous open gaps.

Active safety is reinforced by access control via the locking system and signage.

Constructed with durability in mind, the model is suitable for harsh industrial environments, ensuring long-term reliable performance with minimal maintenance. The geometry was created using Siemens NX, ensuring design precision and compatibility with complex assemblies.

By implementing this solution, you significantly increase safety around stair access points while maintaining controlled access in line with occupational safety standards.

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Direct link to the original creator's page

Platform GrabCAD
Creator Marko Hriberšek
Price Free
Formats RENDERING, STEP / IGES
License See original page
3D Printable Yes
How do I download Self closing safety door with lock?

Click the "View on GrabCAD" button above to visit the original model page on GrabCAD. You can download the RENDERING, STEP / IGES file directly from the creator's page for free.

What 3D printer can I use for this model?

This model is compatible with most FDM 3D printers (Creality Ender 3, Prusa MK3S+, Bambu Lab, etc.) and resin printers (Elegoo, Anycubic). Check the original page for recommended print settings and materials.

Is this 3D model free to download?

Yes, this model is available as a free download on GrabCAD. Some creators accept tips or donations.

Can I modify this file?

Check the license (see original page) on the original GrabCAD page. Most STL files can be modified using free software like Blender, TinkerCAD, or Meshmixer.