Mainspring generates parametric Revit families from a text description or reference image — inside the BIM workflow your studio already uses.
In active development · private beta opening soon
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Describe what you need. Review parameters. Import into your project. No bespoke modelling, no waiting on the content team.
Give Mainspring images, documents, dimensioned sketches, or a detailed description. The model reconciles whatever you provide — a written brief, a manufacturer cut sheet, a site photograph, or all three at once.
The model returns a Revit-ready family — geometry, types, and editable parameters. Typical generation time is 2–5 minutes. Most outputs land at LOD 300; highly organic forms or unusual geometry may need a re-prompt.
Download the .rfa and open it in Revit. Edit parameters the same way you'd edit any family — no Mainspring add-on, no plugin, nothing to install. Always review the output in Revit before using it on a project — Mainspring speeds up modelling, but the file is yours to verify.
Not a mesh import — every output is a real Revit family with named, typed parameters and the right category. Parameters are exposed for schedules and ready to keep editing. Driving geometry from those parameters end-to-end is on the roadmap.
Describe a family in words, drop in a product sheet, a site photograph, a hand-drawn sketch — or all of the above. The model reconciles whatever you provide.
Mainspring runs in your browser. Outputs are .rfa files you download and load like any other family — no plugin to install, no Autodesk sign-in, nothing to keep in sync.
Everything you generate is saved to your account, ready to pick up, refine, or download again.
Define how families should be named and which parameters the model should fill — once, per studio. Every generation lines up with your standards instead of needing rework after the fact.
Families that flex to provided types — one door family that takes a schedule of widths and heights, one table family that produces every size on the project, instead of a separate output per variant.
Hosted families with sub-components and host-aware geometry — doors and windows that cut their host wall, casework with nested hardware, and other multi-part assemblies.
Generate or update many families in a single run — useful for building out a project library or migrating an existing one.
Wire Mainspring into your own AI workflows or as-built pipelines.
A clean workspace built around one idea: describe a family, review what was generated, refine it, ship it.
Pricing isn't locked yet — settling that is one of the goals of the closed beta. The plan is a credit-based model: you buy credits, and each family generation draws from your balance, so you only pay for what you actually build. The exact cost per generation will be set during beta, based on real usage rather than guesswork. Early beta participants will help shape it.
Most generations land at LOD 300. The model is strong on rectilinear, revolved, and parametric geometry — weaker on highly organic forms. Open the family in Revit and review it before using it on a project — Mainspring is built to speed up the modelling, with you still in the loop on the final call.
Yes — every output is a real Revit family with named, typed parameters and the right category, not a mesh import. In beta, those parameters are exposed for schedules and downstream use. Driving geometry from the parameters end-to-end is on the roadmap.
Revit 2024 and later. Outputs are standard .rfa files — there's no add-in, no plugin, nothing extra to install.
In beta, every output is built using sensible defaults — clean naming, well-placed reference planes, sound modelling technique. Aligning outputs to your studio's own standards is on the roadmap.
Active development. Private beta is opening soon (invite-only). Public beta and general availability come after that. Join the waitlist to be considered for the invite list.
Join the waitlist and we'll be in touch when invites open.
