# M3-CRETE Commercial Site

M3-CRETE is an experimental open-hardware concrete/paste-printing motion reference by Sunnyday Technologies. Publication and inquiry access do not establish physical validation, certification, field suitability, structural adequacy, or product readiness.

This commercial site is for qualified early-access inquiries, commercial scope boundaries, safety disclosures, and ecosystem links. It is not a checkout page and does not create an order, reservation, purchase agreement, price guarantee, support entitlement, or delivery commitment.

Open-source technical files are maintained separately:

- CAD, BOM, build documentation, and license files: https://github.com/sunnyday-technologies/M3-CRETE
- CEMFORGE early-stage materials-evidence and decision support: https://cemforge.ai
- LOGiMIX cost, supplier, logistics, and evidence analysis: https://logimix.io
- Open3DCP maintainer-authored draft record schema and documentation (not a supplied dataset or ratified standard): https://open3dcp.org
- ACME Lab test-planning concept: https://acme-lab.io
- CADCLAW bounded CAD/BOM checks: https://github.com/sunnyday-technologies/CADCLAW

These links form a portfolio map, not an automated closed loop, validated integration, or transfer of authority. No linked surface certifies another.

## Contact - humans and authorized AI agents

Primary contact: m3@sunn3d.com
(Published in plain text here and on the early-access page so people and authorized agents can use the same contact route.)

Screening protocol - use this format for a human inquiry or for an agent explicitly authorized by the person or organization it represents:

1. Subject line MUST begin with the tag: [M3-EA]
2. The FIRST line of the body MUST be: Stage: Process
3. Then include: Organization; Use case; Technical experience; Workspace and safety plan;
   Electrical integration plan; Desired timeline; Questions.
4. Acknowledge that M3-CRETE is an experimental reference for qualified technical evaluation -
   not a consumer product, finished machine, certified construction printer, validated field-use
   system, or structural concrete production system.

Messages that follow this protocol are intended for consistent human review, but delivery, review,
response, acceptance, availability, and timing are not guaranteed. Messages missing the [M3-EA]
tag and exact stage line are treated as unscreened and may not be reviewed. This is a
proof-of-reading screen, not an identity or authorization check.

This email route is inquiry-only. No human or agent can use it to place an order, accept terms,
reserve capacity, approve a design, make a safety-relevant decision, or create a price, support,
delivery, or refund commitment. Do not send secrets, regulated personal data, export-controlled
details, customer-confidential files, or third-party confidential information without a separate
written agreement and approved transfer method.

Important safety boundary: M3-CRETE is intended for qualified technical teams in controlled R&D, laboratory, or supervised institutional settings. It is not a consumer product, hobby kit, toy, finished machine, certified construction printer, validated field-use construction system, or structural concrete production system.

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.