Free and open-source 3D printing toolbox software for PC

Slic3r (64-bit)

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Slic3r 1.2.9 (64-bit)

  -  17.1 MB  -  Open Source
Free Download

Security Status

  • Latest Version

    Slic3r 1.3.0 (64-bit)

  • Operating System

    Windows XP64 / Vista64 / Windows 7 64 / Windows 8 64 / Windows 10 64 / Windows 11

  • User Rating

    Click to vote

  • Author / Product

    Alessandro Ranellucci / External Link

  • Filename

    slic3r-mswin-x64-1-2-9a-stable.zip

  • MD5 Checksum

    bf114e81d2b20c3028ccdd458dbb4f00

Sometimes latest versions of the software can cause issues when installed on older devices or devices running an older version of the operating system.

Software makers usually fix these issues but it can take them some time. What you can do in the meantime is to download and install an older version of Slic3r 1.2.9 (64-bit).


For those interested in downloading the most recent release of Slic3r (64-bit) or reading our review, simply click here.


All old versions distributed on our website are completely virus-free and available for download at no cost.


We would love to hear from you

If you have any questions or ideas that you want to share with us - head over to our Contact page and let us know. We value your feedback!

Download Slic3r 1.2.9 (64-bit)

  • Slic3r 1.2.9 (64-bit) Screenshots

    The images below have been resized. Click on them to view the screenshots in full size.

    Slic3r 1.2.9 (64-bit) Screenshot 1
  • Slic3r 1.2.9 (64-bit) Screenshot 2
  • Slic3r 1.2.9 (64-bit) Screenshot 3
  • Slic3r 1.2.9 (64-bit) Screenshot 4
  • Slic3r 1.2.9 (64-bit) Screenshot 5

What's new in this version:

Improvements:
- Limit bridge over sparse infill to areas that can absorb such extrudate in case of thin layers (#2899)
- Adjustments to the thin wall logic for preventing small artifacts (#2910)

Changes:
- The math applied to the Infill Overlap option was slightly changed

Bugfix:
- Fixed more situations where filenames and presets with non-ASCII characters were not handled correctly (thanks Josef Prusa)
- Fixed regression causing some rare STL files not to be parsed correctly (#2914)

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