42 CAD creative (coming soon, beta access).
Procedural CAD via build123d — programmatic, not diffusion. STEP or STL output with DFM (Design for Manufacturing) validation: wall thickness, draft angle for CNC, overhang angle for FDM, tolerances per material.
Manufacturing-grade, not 3D art. Difference matters when you actually need to mill or print the part.
Honest feedback welcome from #Manufacturing #CNC #Engineering folks.
That closes the series — back to building.

AI Data Transformer (coming soon, currently in beta).
Natural-language data ops on CSV or JSON. The differentiator: you get back BOTH the result AND the Polars script that produced it — versionable, reproducible, debuggable. Not a black-box API.
BYOK supported (Groq free tier works for testing). Fallback chain across Groq, Claude, OpenAI, Gemini.
Submitted as our Apify $1M Challenge entry. Will open beta access when we close that loop.
#DataEngineering #Polars

Why we have 4 separate APIs instead of 1 generic "AI suite".
𝟰𝟮 𝗜𝗺𝗮𝗴𝗲 𝗖𝗿𝗲𝗮𝘁𝗶𝘃𝗲 — text → ad PNG with readable HTML/CSS text𝟰𝟮 𝗩𝗶𝗱𝗲𝗼 𝗖𝗿𝗲𝗮𝘁𝗶𝘃𝗲 — text → 4-8s ad with motion graphics + CTA baked in𝟰𝟮 𝟯𝗗 𝗖𝗿𝗲𝗮𝘁𝗶𝘃𝗲 — text or image → printable mesh, printer profiles ready𝟰𝟮 𝗖𝗔𝗗 𝗖𝗿𝗲𝗮𝘁𝗶𝘃𝗲 (beta) — parametric STEP/STL with DFM validation
Each has its own ICP. Each picks the right model upstream. One API key fits all.
Built in Roma. EU-native. 42rows.com
#AITools #BuildInPublic

42 3D creative — what it does.
From text or image input to GLB or STL output. The mesh is print-ready: watertight, with printer presets (FDM, SLA) baked into the file.
Public feed: 10 generations, completion around 110s. Use spans both art (pokemon, alieno) and functional print (steampunk owl 50mm resin, thai temple miniature).
Honest feedback welcome from #3DPrinting #MakerCommunity — does the spec work for your printer?

Built in Roma. Self-hosting our stack.
This post: scheduled by an LLM agent via MCP (Model Context Protocol) → Postiz Temporal workflow → Bluesky+Mastodon (ATProto/ActivityPub).
Postiz vanilla v2.21.7, AGPL-3.0. We orchestrate, not fork.
The 4 APIs (image/video/3D/CAD) sit in front of one OAuth provider Salesmart. Same flow soon available to customers as playbook.
EU-native infra. 42rows.com
#SelfHosted #AGPL #BuildInPublic

42 video creative — what it does.
Footage + motion graphics + CTA baked into one MP4. Output is an ad-ready video, not raw footage you have to edit in Premiere.
Looked at the public feed: 12 video generations, 5-15s typical length, completion around 160s.
Known limit: no audio mix yet (silent output). On the TODO.
Honest feedback welcome from #GenerativeAI #VideoEditing folks shipping video ads in production.

42 image creative — what it does.
Text-to-PNG ad creative. Headlines rendered via HTML/CSS layer (not diffusion) → letters legible at 100 percent.
Sampled 5 outputs from the public feed: clean text on 5 of 5 (real ad-format compositions). Avg completion 125-168s. Long tail 627s on multi-paragraph prompts.
System prompt aims for WCAG AA contrast — we don't post-validate yet. Find an output below 4.5 to 1 ratio? Send sample.
#GenerativeAI #API

Why most AI-generated ad images have "M4RK3T1NG" instead of "MARKETING"?
Diffusion models render text as pixels — guessing letter shapes. Headlines glitch.
We don't. We render text via HTML/CSS 𝗼𝘃𝗲𝗿 the model output. Pixel-perfect, selectable, deterministic for A/B testing.
Same trick for video CTAs and motion graphics. 3D meshes get printer-profile bake-in.
Built in Roma, EU-native. 42rows.com
#AITools #DevTools #BuildInPublic

Hello.
Building text-to-asset APIs at 42rows.com — image (ad creative), video, print-ready 3D, parametric CAD, AI data ops. Single REST surface.
I'll post here when something concrete ships from the codebase. Notes from the workshop, not promo. No newsletter, no funnel.
Honest feedback welcome — especially from #FediverseDev #GenerativeAI #API folks.