Is this 3D model free to download?

Yes, 3D Printer Safety Shutdown - Smoke Detector is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by Thingiverse. Use the "Download from Thingiverse" link on this page to open the original listing and grab the file, or save it to your print queue in the free Thinger app.

Designed by henryarnold, published on Thingiverse. Please credit the creator when sharing your print.

Can I print this at home?

Yes. This is a printable 3D model intended for home FDM and resin printers. Check the original listing for suggested print settings.

3D Printer Safety Shutdown - Smoke Detector 3D printable model by henryarnold

3D Printer Safety Shutdown - Smoke Detector photo 1

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3D Printer Safety Shutdown - Smoke Detector

Source: Thingiverse by henryarnold

The 3D Printer Safety Shutdown - Smoke Detector is a free printable 3D model from Thingiverse by henryarnold. Have you ever worried about leaving your printer running for those long 20 hour prints? With a heated bed, hot extruder, and cheap power supply, there's a lot that could go wrong. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

1,228 saves Source: Thingiverse Updated 2026-10-24 License: CC-BY · commercial OK 6 makes Category: 3D Printer

Tags: 3D Printer Smoke, 3D Printer Safety, automatic shutoff, printer shut off, Safety, safety shut down, safety shut off, Safety Cutoff, Safety Cutoff Switch, shut down, shut off, smoke, smoke alarm, smoke detector

About this model

Have you ever worried about leaving your printer running for those long 20 hour prints? With a heated bed, hot extruder, and cheap power supply, there's a lot that could go wrong. I have worried about leaving my printer unattended and wanted an automatic smoke detection and shutdown solution. This post contains all the information you need to build a 3D Printer Safety Shutdown. I am not selling anything. This is merely the information needed to make your own printer shutdown device. I recently became aware that there are now off the shelf solutions to do this same safety shutdown function. They weren't available before. If you would rather build your own, this Thing is a good start, otherwise see the update below with links to ready made products. This solution uses an IOT Power Relay from…

Frequently asked questions

Is this 3D model free to download?: Yes. 3D Printer Safety Shutdown - Smoke Detector is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link above to open the original listing.
Where is the STL hosted?: The download is hosted by Thingiverse, not by Thinger. We link you directly to the original listing by henryarnold.
Who made this model?: Designed by henryarnold, published on Thingiverse. Please credit the creator when sharing your print online.
Can I print this at home?: Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.