homeracker

---
makerworld_url: https://makerworld.com/en/models/1317298-homeracker-core
extracted: 2026-04-13
---

<h2 style="text-align: center">HomeRacker - Core</h2>

<p style="text-align: center"><a href="https://homeracker.org/"><img src="https://raw.githubusercontent.com/kellerlabs/assets/main/common/makerworld/images/homeracker_logo_banner.webp" alt="HomeRacker Logo" width="300"></a></p>

<p style="text-align: center"><a href="https://homeracker.org/">https://homeracker.org/</a></p>

[![HomeRacker Core Video](https://img.youtube.com/vi/g8k6X_axYug/maxresdefault.jpg)](https://www.youtube.com/watch?v=g8k6X_axYug)

<p style="text-align: center"><strong>Boost Me (for free)</strong></p>

<p style="text-align: center">Help me overengineer more stuff if you like this one!</p>

A fully modular universal rack building system for virtually any "racking needs"
(Server Rack, bookshelf, shoe rack, you name it).

With this core model you can create base racks build upon. It's designed with
modularity in mind, so you never really have to decide when to buy the next bigger
10"/19" rack or to change standards. HomeRacker grows with your needs. You can
start with a small Pi-Rack and maybe end up with 10" (or even 19") rack…. or
multiple of them, or multiple of them directly assembled together. There are not
really limits to how big you want to build.

You can for example build a Cyberpunk-themed 10" Rack with airflow optimization
for your RaspPis like this:

<img src="https://raw.githubusercontent.com/kellerlabs/assets/main/homeracker/models/core/makerworld/images/cyberpunk_rack_showcase.webp" alt="Cyberpunk 10&quot; Rack Showcase" width="800">

This one can be found [HERE](https://makerworld.com/en/models/1353730-modular-10-server-rack#profileId-1396904). It contains all parts from the projects below (HomeRacker Core, PiMount, 10"
Mount, Airflow Kit) and is a perfect showcase on how HomeRacker can be used.

## What's in the Box??
<img src="https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcTPRVc4JUmEkFLJrKs4KKTrcxTlJOTWMBnlKQWcTsaC5xwjQU4zew&s=10&ec=72940545" alt="What's in the box?" width="400">

This model only contains the core parts of HomeRacker, which are

- 🆕v1.8.0
  - Customizable versions of the following core components
    - 🌐Connectors: Now you can even create Pull-Through Feet
    - ❎Supports: Now with Dual-Hole support
    - 🫳Lock Pins: In standard and extended lengths, with and without grips
- supports of a great variety of sizes
  - part of the print profile (x2 - x17)
  - folder: Customizable Core Components (customizable up to x100)
- connectors in all possible permutations
  - part of the print profile (sane choices)
  - folders:
    - Customizable Core Components (Fully customizable)
- Lock-Pins
  - part of the print profile
  - folder: Customizable Core Components
- Diagonal Supports to act as stabilizers for large builds
  - NOT part of the print profile
  - folder: Diagonal Supports - 3mf ([FAQ Page](https://discord.com/channels/1427364339333201942/1459523867553959956/1459534173516726285) [Discord Invite down below])

When importing customized stl files from the Model Maker into your slicer

### 🙅‍♂️Do NOT autorotate the parts! 🙅‍♂️

No part needs printing-supports, when they're exported from the Model Maker
(provided you didn't deactive `optimal_orientation`).

You should print single-holed supports auto-rotated (hole aligned vertically) to
have the best locking experience.

## Small Disclaimer

These parts only enable you to build basic racks without any mounting. I work in
my spare-time to bring new adapters and mounts for the core system, but I won't
be able to cover everything. And that's where you come into play: HomeRacker is
based upon an open standard (See Technical specs), which everyone can use free
of charge (even for commercial purpose) to build their own creations upon. So be
creative and share your models with me (here on [Github](https://github.com/kellerlabs/homeracker)). I'd love to add them to the list here:

## Diagonal Supports

Diagonal Supports act as stabilizers to support load bearing or large builds.
They come in 5 permutations to cover many possible directions (see screenshot) and
also in almost any printable size.

I uploaded additional BambuStudio (3mf) files with all printable sizes in them.
Please find them

in the downloadable folder named Diagonal Supports - 3mf

or as parametric f3d file in

parametric Fusion360 files - f3d

<img src="https://raw.githubusercontent.com/kellerlabs/assets/main/homeracker/models/core/makerworld/images/diagonal_supports.webp" alt="Diagonal Supports" width="800">

## Projects

For the full and always up-to-date project catalog, please see the

### [The Official HomeRacker Collection](https://makerworld.com/collections/5970240)

<a href="https://makerworld.com/en/collections/5970240-homeracker-official-catalog"><img src="https://raw.githubusercontent.com/kellerlabs/assets/main/common/makerworld/images/collection_banner.webp" alt="Official HomeRacker Collection" width="800"></a>

Here's some highlight projects I created using HomeRacker-Core as the base:

<a href="https://makerworld.com/en/models/1895418-modular-gridfinity-drawers#profileId-2030731"><img src="https://raw.githubusercontent.com/kellerlabs/assets/main/homeracker/models/core/makerworld/images/gridfinity_drawers.webp" alt="Modular Gridfinity Drawers" width="800"></a>

<a href="https://makerworld.com/en/models/1545372-dry-filament-shelf#profileId-1622562"><img src="https://raw.githubusercontent.com/kellerlabs/assets/main/homeracker/models/core/makerworld/images/dry_filament_shelf.webp" alt="Dry Filament Shelf" width="800"></a>

## ⚙️ Technical Specs

This model is based on the open-source HomeRacker specification which you can find here:

[https://homeracker.org/](https://homeracker.org/)

I really don't like this WYSIWYG editor here, this is why I created above's
page, which is sourced from Github. So the website will always be the source of
truth. If you want to raise any issues, please consider [opening an issue on Github](https://github.com/kellerlabs/homeracker/issues/new).

## 🏘️ Community Driven

My time is very limited. That's why I created the open specification (see Technical Specs), so anyone can create extensions and models for HomeRacker without license
restrictions. If you have an idea and the ability to design CAD models, please go
ahead — I'd be happy to link your creations in the catalog!

If you're not familiar with CAD design, feel free to pitch your idea to me with
as much detail as possible.

<p style="text-align: center">Check out the glorious <a href="https://makerworld.com/en/collections/6173784-homeracker-community-catalog">Community Catalog</a></p>

<p style="text-align: center">Pitch ideas or vote for them <a href="https://github.com/kellerlabs/homeracker/discussions">here on GitHub</a>!</p>

<p style="text-align: center">Join the<br><a href="https://discord.com/invite/FNG2RsAP53">KellerLab Discord Server</a></p>

## 🚀💰 Core Model: Free Use and Commercial Freedom

The Core Model is, and will always remain, free for you to use! ✅

It's shared under the CC-BY-SA license, which allows for commercial use. This means you can create intricate
extensions and derivatives, and even charge money for them! 🤑

I encourage this freedom to incentivize the creation of high-quality extensions for the community! 💡 I use this commercial approach for my own extensions as
well (by making them exclusive).

The only thing you must do is provide proper attribution to me (CC-BY-SA) by linking to my MakerWorld profile: https://makerworld.com/en/@kellerlab 🙏

#### ⚠️ Important Boundary for My Extensions

This policy applies only to the Core Model. You are free to commercialize extensions you create, but all Kellerlab Extensions and other derivatives I release are my intellectual property and are not included in this commercial freedom.

## ☕️ Support

If you appreciate this model and wanna buy me coffee, you can do so here: [https://ko-fi.com/kellervater](https://ko-fi.com/kellervater)

Or simply scan this QR-Code:

<p style="text-align: center"><img src="https://raw.githubusercontent.com/kellerlabs/assets/main/common/makerworld/images/kofi_qr_code.webp" alt="Ko-fi QR Code" width="328"></p>

## 📜 Changelog
[2026-03-15]

- ✨[v1.8.0](https://github.com/kellerlabs/homeracker/releases/tag/homeracker-v1.8.0) out now. 🫳Lock Pins now have
  - Extended grip versions (Community contribution in [1.6.0](https://github.com/kellerlabs/homeracker/releases/tag/homeracker-v1.6.0))
  - Neck Extension options to mount adapters upon connectors or other adapters. Only available in the customizer.

[2025-11-25]

- ✨ HomeRacker officially hit version [v1.1.0](https://github.com/kellervater/homeracker/releases/tag/v1.1.0) now. This means, all core parts (except diagonal supports) are now translated into openSCAD and available for you to customize:
  - 🌐Connectors: Now you can even create Pull-Through Feet
  - ❎Supports: Now with Dual-Hole support
  - 🫳Lock Pins: Now also as gripless version
- 🗑️ In favor of above's customizable version I dropped the step files and folders. They are hard to maintain
- 🔄 On the flipside to the removed step files the print profile has been updated and now contains the additional new features which i mentioned above (dual hole supports, gripless lockpins and pull-through feet)

[2025-10-14]

- 🤑 I've changed the license for the Core Model from CC-BY-NC-SA to CC-BY-SA.
  - This means everyone can now use the core model for commercial purposes.
  - IMPORTANT: This commercial use only applies to this specific Core Model.
  - All HomeRacker extensions and other models from Kellerlab still require a commercial membership for physical sale.
  - Proper attribution is still required.

[2025-09-06]

- 🔓🤝 Removed exclusivity from the model so people can refer their remixes officially now.

[2025-06-13]

- Added new Pull-Through Connector "2d2wps_v96". To clarify why there are no lock pin holes on the pull-through walls: this connector is designed for situations where there is limited space on a support. When a 3d3wp or 3d4wp doesn't fit because only one unit of space is available, you can use this connector instead. It doesn't require a lock pin for fixation, as it will be secured by adjacent connectors. Additionally, a lock pin wouldn't fully engage, since it expects a wall with a lock pin hole on the opposite side — but in this case, the support itself would block the way.

[2025-06-09]

- Added catalog entry for the [19" Modular Server Rack](https://makerworld.com/en/models/1503491-modular-19-server-rack#profileId-1573137)

[2025-05-10]

- created a python export script (to be found on [Github](https://github.com/kellervater/homeracker/blob/main/scripts/ExportCoreComponents/ExportCoreComponents.py)) to reproducibly export all bodies as separate step files from the Fusion design
- uploaded all parts as separated step files in the following downloadable folders
  - Supports - step
    - contains Supports from x2 up to x25
  - Connectors - Standard - step
    - contains standard connectors in all dimensions and directions
  - Connectors - Feet - step
    - contains connector feet (one side solid)
  - Connectors - Pull-Through - step
    - contains all Pull-Through Connectors
- Uploaded the "Diagonal Supports" parametric fusion design and reorganized fusion files in the folder "parametric Fusion360 files - f3d"

[2025-05-06]

- Added Diagonal Supports as stabilizers for larger load bearing builds
- New entries in extension catalog:
  - universal mounting bracket
  - wallmount

[2025-04-13]

- Initial Release of Core Models