Open design files
CAD, BOM source data, firmware references, license files, and build documentation remain available through the M3-CRETE GitHub repository.
Qualified Technical Users // Open Hardware // Commercial Support
Concrete.
Printed.
Open.
M3-CRETE is an open, modular concrete/paste-printing motion and controls platform for labs, schools, R&D teams, and experienced builders who need a repairable meter-scale system without committing to a closed construction-printer platform.
Commercial Surface, Open Technical Core
The technical design remains open on GitHub. This site handles customer qualification, support scope, safety boundaries, and commercial communication.
Qualified early access
Sunnyday is collecting inquiries from technical teams that can safely evaluate a development platform and provide useful build feedback.
Clear support boundary
Commercial support, supplied components, software access, and any electrical enclosure work must be quoted and scoped in writing.
What M3-CRETE Is For
M3-CRETE is positioned for research, education, product development, and controlled prototyping. It is not sold as a finished construction machine or structural-output guarantee.
Research and education
Use a documented, modifiable platform for concrete additive manufacturing coursework, laboratory investigation, and grant-supported research.
Materials and process testing
Evaluate cementitious mixes, toolpaths, printability windows, and workflow assumptions on a repairable Cartesian gantry.
Product development
Prototype non-structural printed objects, molds, hardscape forms, and process fixtures before committing to larger industrial systems.
Safety Boundary
M3-CRETE is professional-use equipment in development. It requires competent mechanical, electrical, controls, and concrete/paste-printing judgment.
Any AC mains wiring, control-box integration, grounding, bonding, overcurrent protection,
disconnects, emergency-stop power circuits, facility connection, inspection, or code-compliance
work must be performed by qualified personnel, a licensed electrician where required, or a
qualified control-panel shop.
