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Before you order
Will it print?Ask before you pay.
Scroll, and the engine runs the checks a print service would — on real test parts. Drag the part to turn it.
Your file
It never leavesyour computer.
fabgen reads the STL or 3MF locally. Nothing is uploaded anywhere — not to us, not to a service.
Check 1 · closed mesh
4 open edges.A hole in the file.
A box exported without its lid. Slicers guess how to close holes, and services may refuse the file. Repair the export first.
Data under review
Check 2 · walls
0.4 mm thin.FDM needs 0.8.
The engine casts rays inward to find the thinnest wall. Below the minimum, thin spots may not print or may break.
Data under review
Check 3 · overhangs
8.0 cm² in the air.1.2 cm³ of support.
The cap of this mushroom hangs beyond 45°. In filament it needs supports, and supports leave scars.
Data under review
Check 3 · orientation
Turn it −Z up.0.0 cm³ of support.
The engine tries all six axis orientations and picks the one with the least support.
Data under review
Check 4 · cavities
1 sealed cavity.Resin stays inside.
In resin and powder processes a closed pocket traps material. Add two escape holes or make the part solid.
Data under review
The bill
$21–$710.For the same 10 parts.
11 ways to get them made to the US, from a print factory to an industrial bureau. Ranges from published calculators — not a quote.
Data under review
Your turn
Check yoursbefore you pay.
3D prints, PCBs and CNC parts: verdicts with reasons, prices as ranges, sources with dates.
Check a part
Your model file never leaves your computer
fabgen reads the STL or 3MF from a local path on your machine. The file is never uploaded anywhere — not to us, not to a print service. The examples on this site were computed the same way, from the engine's own test files.
- The check runs locally, without the network.
- When offers open, only a job summary goes out: process, material, quantity, sizes. No file, no name, no contacts.
- You upload the file yourself, on the service's own page, when you decide to order.
Use it inside Claude or ChatGPT
coming soonThe same calculator runs as an MCP server: your assistant calls it and answers with these numbers, assumptions and sources.
https://mcp.furnigen.app/fabgen/mcp- Claude: Settings → Connectors → Add custom connector → paste the address.
- ChatGPT: Settings → Apps & Connectors → create a connector (developer mode) → paste the address.
The public server opens after the gateway launch. Until then this address does not answer.