Is this 3D model free to download?

Yes, Sapphire Pro - Optical Z Endstop Conversion 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 petrzmax, 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.

Sapphire Pro - Optical Z Endstop Conversion 3D printable model by petrzmax

Sapphire Pro - Optical Z Endstop Conversion photo 1

Sapphire Pro - Optical Z Endstop Conversion photo 2

Sapphire Pro - Optical Z Endstop Conversion photo 3

Sapphire Pro - Optical Z Endstop Conversion

Source: Thingiverse by petrzmax

The Sapphire Pro - Optical Z Endstop Conversion is a free printable 3D model from Thingiverse by petrzmax. If You enjoyed this project and You want to say "Thank You" please consider supporting me by sending a tip on thingiverse or my PayPal here. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

79 saves Source: Thingiverse Updated 2026-10-15 License: CC-BY-NC-SA · non-commercial Category: 3D Printer

Tags: adjustable endstop, Adjustable Z Endstop, endstop, optical endstop, Optical Sensor, Sapphire-S, Sapphire Pro, Sapphire S, Twotrees Sapphire Pro, Two Trees, Two Trees Sapphire, z endstop

About this model

If You enjoyed this project and You want to say "Thank You" please consider supporting me by sending a tip on thingiverse or my PayPal here. I had some problems with homing Z Axis. After a few prints my perfectly leveled bed was homing in different position and ideal first layer was wasted. It was difficult to have exactly the same first layer every time. My glass for printing was almost ideally flat, so I don't need to use Bltouch or some similar probe. Also while using Z offset and positive Z offset value Z axis has not much space - Z endstop will be squished etc. The way to go is using optical endstop. I have used this one: - I have drilled 3 mm hole in original endstop holder and screwed endstop using 3 mm screw and 3D printed washer (You can use standard washer). Cables that came with…

Frequently asked questions

Is this 3D model free to download?: Yes. Sapphire Pro - Optical Z Endstop Conversion 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 petrzmax.
Who made this model?: Designed by petrzmax, 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.