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    Better Workdays – Office Essentials

  • Office Supplies

  • Lumbar Support

Office chair lumbar support, fully 3D printed, robust and long-lasting.
Print Profile(1)
  • 0.2 mm layer height, 2‑wall walls, 15% infill density

    4-disc

    PETG

    Designer

3

3

68

2

Released 2025-12-22
Details
Files(1)
Makes & Comments (0)

I’ve long been troubled by the feeling of having my lower back and lumbar region unsupported while sitting—no matter how many lumbar support cushions I tried, none really worked. Given that I’m quite large in stature and weight, I decided to take this opportunity to design my own solution. I originally planned to incorporate electrically powered support, but with the motor still unfinished and time running short, I opted to upload the design for now. If there’s enough demand later on, I’ll add an electrically adjustable lumbar support system—let’s see how everyone responds first!

      Many people worry about quality issues, but rest assured—after testing it myself with my 200‑lb frame over several days, I can confidently say it provides ample support without breaking. From the very beginning of the design process, I accounted for the relatively brittle nature of 3D‑printed parts, carefully avoiding weak points in both the structural design and the printing parameters—including the infill pattern and print orientation—all optimized to achieve the strongest, most resilient performance possible with PETG material. So feel free to print and use it with confidence!

  1. Product Overview

Product Name: Office Chair Lumbar Support (High‑Strength)
Lumbar Support Dimensions: 395 mm × 200 mm × 100 mm
Features:Adjustable support height with two distinct settings, plus a built‑in massage ball
Print Materials:We recommend using around PETG, with an estimated material usage of approximately 850 g.

 

2. Print Color Options:

We’ve designed several color variations for your reference—feel free to mix and match multiple colors to suit your personal style.

3. Installation Is Relatively Simple

The final step is to secure the back panel—simply bend the panel and snap it into place within the base slot.

 

4. Key Design Enhancements:

The back panel is printed in a straight-line configuration, maximizing structural integrity while ensuring durability and resistance to bending—guaranteeing sufficient support and optimal strength.

After the massage balls are printed, simply apply adhesive to affix them in place. While it would be possible to print the massage balls as part of the main structure, doing so could compromise the back panel’s strength—so we recommend assembling them separately for better results.

If you prefer not to include the massage balls, you can still use the lumbar support without them—it will function just as effectively.

Originality of the Model

The author declares that this work is their personally original model

This model is licensed under the following terms:

Standard Digital File License

This work is licensed under a Standard Digital File License. Digital files have a strict non-commercial, personal use only license.

You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital file or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including remixes of this object). You can not host these files on other digital platforms, web stores or cloud repositories. The objects may not be used in any way whatsoever in which you charge money, collect fees.

Models(1)

  • model file image
    座椅腰靠-完整版.3mfDesigner

    378.78 KB

    2025-12-21

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