Xometry vs Protolabs vs a product development partner

Xometry and Protolabs make parts from a design that already exists. A product development partner creates that design, proves it works, and then has the parts made. They are not competitors — they sit at different points on the same timeline. Buying the wrong one is the most common and most expensive mistake we see from first-time hardware teams.

If you have production-intent CAD, know your material and tolerances, and simply need parts, these services are excellent and hard to beat on price or speed. Use them when the engineering question is already answered.

An instant quote engine prices geometry. It does not ask why the wall is 4 mm thick, whether that snap fit will survive 500 cycles, or whether a $12,000 mold is being cut for a design that has never been in a user's hand. We regularly meet founders who spent $20,000 across a dozen part orders, iterating blind, before starting the engineering they needed on day one.

Some do, and it is a fair question to ask directly. We build most prototypes in our own shop in Ruston, Louisiana — FDM, SLA and CNC — and we do use outside suppliers for processes we do not run, such as SLS, sheet metal and injection molds. The difference is not who owns the machine.

It is that someone is responsible for whether the part is the right part, and for the tolerance stack, material choice and assembly method behind it. See how our prototyping works for what runs in-house.

If you are not sure which bucket you are in, our prototype cost calculator gives you a range in a few minutes, and a prototype development application gets you a real answer from an engineer. Related reading: rapid prototyping company vs manufacturer and how to reduce prototype costs.