Pick the prototype for the question
| You are testing | What matters | Usually a good fit |
|---|---|---|
| Form — look, size, ergonomics | Appearance, speed, cost | PLA or resin for fine detail |
| Fit — does it mate with other parts? | Dimensional accuracy | PETG, resin for small precise parts |
| Function — loads, heat, snap-fits | Toughness, heat resistance | ABS/ASA, nylon, PETG |
Iterate without starting over
When you revise a design, submit the new STEP file as a new request and mention the earlier one in your notes. Because each quote is reviewed by a person, we can carry forward what we learned from the last version — orientation, material, and anything that didn’t print well.
Prototype tips
- Mark the dimensions that must be accurate. Not every feature needs tight tolerances, and saying which do keeps cost down.
- Expect printed parts to be weaker between layers than along them. If a prototype will be stressed, tell us the load direction.
- Moving on to production? A printed prototype in the final material makes a better test than a cheap one in PLA.
More detail in our design for 3D printing guide.
Questions
What is the best material for a functional prototype?+
It depends on the test. PETG is a good all-round functional material, ABS/ASA adds heat resistance, and nylon is best for toughness, wear, and snap-fits. Describe the use and we will recommend one.
Can you print several versions of a prototype?+
Yes. Submit each STEP file as its own request, or email us to quote several variants together.
Last updated October 27, 2026 · NanoArc3D