by SkyVFX·Modeling
Images © SkyVFX. Used for product review; image policy.
Earns its place for automating the tedious prep — manifold checks, per-material shrinkage compensation and 45° FDM orientation — so a keycap comes out of Blender ready to slice.
Keycap Generator Pro is a Blender add-on that produces print-ready mechanical keycaps at strict 1:1 real-world scale. It builds five profiles — Cherry, OEM, SA, DSA and XDA — using per-row heights and tilts from published GMK/Cherry-based spec data, and generates sizes from 1U up to 7U spacebars at an exact 19.05 mm pitch. Keys of 2U and larger receive automatic stabilizer stems.
The MX cross stem is a separate, locked object, tuned to an FDM baseline with a micron-precision tolerance slider and a one-click Reinforced Stem mode for silk and brittle filaments. Legends accept any text and font, with Auto-Scale keeping them inside the printable area and Auto-Wrap breaking long labels into centered lines, plus emboss or deboss at depths snapped to whole print layers. Surface options include B&W image displacement, tiling side textures and procedural Geometry Nodes styles.
Export runs boolean union, vertex weld, internal-shell cleanup, a manifold check, optional 45° FDM orientation and per-material shrinkage compensation for PLA, PLA+, Silk, PETG and ABS. Split-part export writes base, legend and add-ons as origin-aligned STLs. The download includes documentation and nine tuned Bambu Studio presets, and requires Blender 5.1 or newer with no other dependencies.
Keycap Generator Pro Print-Ready Mechanical Keycaps For Fdm is best for makers producing print-ready mechanical keycaps for FDM printing directly in Blender, across Cherry, OEM, SA, DSA and XDA profiles and sizes from 1U to 7U.
Keycap Generator Pro Print-Ready Mechanical Keycaps For Fdm is completely free to download and use.
Keycap Generator Pro requires Blender 5.1 or newer and has no other dependencies. That single requirement covers the add-on itself. The download is an installable package, KeycapGeneratorPro_v1.4.1.zip, which bundles the add-on together with presets and documentation. User documentation ships in Markdown and PDF format. If you are running an older Blender release, you would need to update to 5.1 or above before installing. For the latest version details, check the developer's page.
Keycap Generator Pro exports STL files, so it works with any slicer that accepts STL. The download also includes nine tuned Bambu Studio presets covering both process and filament settings as P2S profiles, plus example keycap-style preset .json files. If you use a different slicer, the STL output still applies; the bundled preset pack simply targets Bambu Studio out of the box. You can import the exported meshes into your slicer of choice and proceed from there.
Keycap Generator Pro covers five profiles — Cherry, OEM, SA, DSA and XDA — with per-row heights and tilts taken from published GMK/Cherry-based spec data. It generates every size from 1U up to 7U spacebars at an exact 19.05 mm pitch, and it adds automatic stabilizer stems on 2U and larger keys. Legends can use any text and font, with Auto-Scale keeping them inside the printable area and Auto-Wrap breaking long labels into centered lines sized as large as possible.
Keycap Generator Pro handles export preparation in a single click: boolean union, vertex weld, internal-shell cleanup and a manifold check. It can orient the keycap at 45 degrees for FDM and align it to Z=0, and it applies per-material shrinkage compensation for PLA, PLA+, Silk, PETG and ABS so the cooled print lands on spec. A Printability Warning System calculates legend stroke width and flags any strokes thinner than a 0.4 mm nozzle before you export.
Keycap Generator Pro is listed as free in this catalog. Licensing terms can change, so check the developer's page for current details before you rely on any particular arrangement. The download is delivered as an installable add-on package that includes the add-on, presets and documentation, so once you have it you get the full toolset described here. For anything about pricing or usage rights, the developer's page is the authoritative source.
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