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Hi, I'm Maciej

pronouciation / he/him

I'm a site reliability engineer, a maker and a all-around hacker.

Hobbies & Projects

Programmers' CADs

OpenSCAD and (more recently) CadQuery are my CAD tools of choice.

catchnhole: an ergonomic way to create nutcatches and bolt holes in OpenSCAD
next-bolt: putting some more Computer Assist into your bolt length choices
...and a ton of other OpenSCAD libraries

3D printers

The Swoon: a WIP fork of the FoldaRap project intended at upgrading the design with belted Z (✓), linear rails and EVA 3.0 compatibility
Resin curing chamber: parametric resin curing chamber using UV LED strips
Lighting (top, side), camera & feet setup for my Prusa i3 MK3s+

Model rocketry

Trying to make model rocketry more accessible and DYI:

Launch Controller 0: very simple model rocket launch controller
Launch Pad 1: launch pad for model rocket based around 2020 aluminium extrusions
SV Entire Thing: small, fully 3D-printed model rocket hull for testing designs


Rapiscope: rack and pinion-adjustable, rapidly 3D-printable, Raspberry Pi-based digital microscope for soldering

Mechanical keyboards

  • qmk_rc and qmkrcd - remote control for your QMK-powered keyboard

SRE/build engineering/...


  1. hock hock Public

    An HTTP mocking server with an API based on Nock.

    JavaScript 84 20

  2. qmk_rc qmk_rc Public

    Remote control for your QMK-powered keyboard

    C 57

  3. ircb ircb Public

    An IRC library which *I* like.

    JavaScript 68 6

  4. how-do-you-pronounce-maciej how-do-you-pronounce-maciej Public

    How do you pronounce Maciej? That's how.


  5. http-console2 http-console2 Public

    Forked from cloudhead/http-console

    simple, intuitive HTTP REPL — Speak HTTP like a local.

    JavaScript 42 2

  6. the-swoon the-swoon Public

    Forked from EmmanuelG/Foldarap

    The Swoon, a folding RepRap