Is this 3D model free to download?

Yes, THE TEST DISC | Z-Offset Calibration Disc is free to download from MakerWorld. Open it in the free Thinger app, or use the "Download from MakerWorld" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by MakerWorld. Use the "Download from MakerWorld" 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 K2_Kevin, published on MakerWorld. 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.

THE TEST DISC | Z-Offset Calibration Disc

Source: MakerWorld by K2_Kevin

The THE TEST DISC | Z-Offset Calibration Disc is a free printable 3D model from MakerWorld by K2_Kevin. THE TEST DISCThe Bambu Printers do not have an easy Z-Offset baby steping interface. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from MakerWorld

9,894 saves Source: MakerWorld Updated 2026-09-27 Print time: 9m Filament: 3 g License: CC-BY-NC-SA · non-commercial ★ 4.9 (429) 4,367 makes

Tags: z-offset, test, disc, bedlevel

About this model

THE TEST DISCThe Bambu Printers do not have an easy Z-Offset baby steping interface. If you notice your prints do not have a perfectly smooth first/bottom layer (you see layer lines), you can change the z-offset in Bambu Studio to give it more squish.Goto to Printer Settings | Machine G-code |Machine start G-code. You will need to scroll down until you find the section for z-offset on textured build plate. Change the value one at a time (from the default -0.04 to -0.05 etc.) and retest with a Test Disc. change this to a higher negitive number brings the bed closer to the nozzle. WARNING if you change this number incorrectly, you could cause damage to your bed, nozzle or other parts. Do this at your own risk! BAMBU X1C Example Above: I started at the default z-offset = -0.04, using this cal…

Frequently asked questions

Is this 3D model free to download?: Yes. THE TEST DISC | Z-Offset Calibration Disc is free to download from MakerWorld. Open it in the free Thinger app, or use the "Download from MakerWorld" link above to open the original listing.
Where is the STL hosted?: The download is hosted by MakerWorld, not by Thinger. We link you directly to the original listing by K2_Kevin.
Who made this model?: Designed by K2_Kevin, published on MakerWorld. 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.