How to brief a maker for an anatomy or dental model
What to put in a job post for a 3D printed anatomy, dental teaching or prototype model: purpose, file and licence, scale, material, colours, labels and quantity.
Prototypes for device startups, not for patient use
By the Medical 3D Parts editors, The Spool List · Published October 14, 2026
The short answer
A maker can print form and fit prototypes, housings and trade-show models for a device company, marked 'Prototype. Not for patient use.' They are for looking at, handling and testing fit, never for use on a person. Design validation, testing and regulatory work for the finished device stay with the company that will make it.
Early prototypes help a team see and hold a design: how a housing fits a hand, where a button sits, how parts go together. A maker with a 3D printer can turn a CAD file into that kind of model quickly.
What makers here print
- Look-alike and form models of a housing or handle.
- Fit-check parts for assemblies.
- Trade-show and pitch models.
- Fixtures and stands for bench demonstrations.
Steps
- Send the CAD file (STEP or STL) and say which features matter.
- State the use: looks, fit, a demo or a stand.
- Ask for the label "Prototype. Not for patient use." on each part.
- Agree the material, and ask for a test part before a batch.
What stays with the device company
A printed prototype is not the device. The FDA's guidance on additively manufactured devices sets out testing and characterisation for devices made by 3D printing [1], and US devices are classified by risk into Classes I to III [2]. Even a resin maker selling a biocompatible-rated resin says "no intended uses are provided" for it and that the device maker determines biocompatibility [3]. So a prototype from a maker is never used on a patient, in a clinical study or as a production part.
Get a teaching or display model printed
Post the model free on The Spool List with your file, size and labels. Makers with resin and FDM printers send a price and a lead time, and you choose.
Medical 3D Parts is run by The Spool List Ltd. This button opens our own marketplace, which earns a commission from makers on completed orders. Teaching, display, practice and prototype models only: nothing for use in or on the body.
Sources
- FDA guidance: Technical considerations for additive manufactured medical devices (final, December 2017) (accessed October 14, 2026)
- FDA: Classify your medical device (accessed October 14, 2026)
- Formlabs: BioMed Clear Resin product page (accessed October 14, 2026)
Rules are quoted as the sources state them, checked October 14, 2026. They differ by country and change: check the source before relying on them. This page is general information, not medical, dental or legal advice.
Drafted with AI assistance and checked against the sources above by the Medical 3D Parts editors. Medical 3D Parts is a guide published by The Spool List Ltd. Its buttons lead to The Spool List, our marketplace, which earns a commission from makers on completed orders. Makers are independent people and small workshops, not registered medical device manufacturers or dental laboratories.