Prototype machining cost typically ranges from the low hundreds of dollars for a simple aluminum or steel part to several thousand dollars for a complex part in stainless, titanium, or Inconel with tight tolerances. Most of a prototype's price is programming and setup, so quantity, number of setups, and tolerance choices have the largest effect.
Engineers ask how much prototype machining costs because budgets are set before designs are final. This page gives typical ranges, explains what moves the number, and shows how to design a prototype that costs less without changing how it performs.
How much does prototype machining cost? Typical ranges
| Prototype type | Typical price at quantity 1 | What drives it |
|---|---|---|
| Simple turned part, aluminum or steel, general tolerances | $100-$400 | Programming, one or two setups |
| Simple milled bracket or plate, aluminum | $150-$500 | Number of sides machined |
| Moderate housing or manifold, multiple setups | $500-$2,000 | Setups, pockets, hole count, tolerances |
| Complex part in stainless, titanium, or nickel alloy | $1,500-$5,000 or more | Material, cycle time, tight tolerances, inspection |
These are typical US job-shop ranges, not quotes. Your price depends on geometry, material, tolerance, finish, and documentation. Adding finishing or a full CMM report increases the number.
Why prototypes cost more per part than production
A prototype order pays for work that production orders spread across hundreds of parts: CAM programming, tool selection, fixture design, setup, and first-piece verification. A production run also benefits from optimized toolpaths and dedicated fixtures that are not worth building for one piece. The prototype price is not a preview of the production price. Ask for a production quantity break with the prototype quote to see the real unit cost at volume.
The main prototype cost drivers
- Setups. Each time the part is flipped or refixtured, cost rises. Designs machinable from one or two sides cost less.
- Tolerances. Tight tolerances on every feature slow the job. Tolerance only the functional features for a prototype.
- Material. Aluminum 6061 is inexpensive and fast. Titanium and Inconel cost more and cut slowly.
- Internal corners and deep features. Small internal radii and deep narrow pockets require small tools and slow feeds.
- Surface finish. Fine finishes add passes or grinding.
- Documentation. Full CMM reports and first article packages add inspection hours.
- Finishing. Anodize, plating, and heat treat are performed through qualified outside processors and carry lot minimums.
How to lower prototype machining cost
- Order two or three pieces. The added cost is often small compared with a second order later.
- Prototype in the production material only if testing requires it. Otherwise consider aluminum for form and fit checks.
- Use standard hole sizes and thread callouts.
- Specify internal corner radii that match standard end mill sizes.
- Skip cosmetic finishes on test parts.
- Send a STEP model with the drawing to shorten programming.
Our engineering guides cover design-for-machining practices in more detail.
How Wexmar quotes prototypes
Wexmar machines prototypes on the same equipment used for production: ten CNC lathes with live tooling and Y-axis, six horizontal machining centers for 3- and 4-axis milling, and four Maier Swiss machines for small parts up to 32 mm. That matters because a prototype made on the production process tells you more about how production parts will behave. When the design is released, the program and setup notes carry forward.
For budgeting, our instant quote tool gives a preliminary price range within minutes of uploading a PDF drawing or STEP model. A human estimator then reviews the part and confirms the price before it is firm. The full equipment summary is on our capabilities page.
Prototype to production
If the prototype will lead to production, say so in the RFQ and include an estimated annual quantity. The estimator can then point out features that are fine for one piece but costly at volume, before the design is frozen. Wexmar has no minimum order and carries work from single prototypes through production runs on one floor, with second-shift capacity.
Prototype budget checklist
- Drawing with functional tolerances identified
- STEP model
- Material and whether a substitute is acceptable
- Quantity of one plus two or three spares
- Estimated production volume
- Required finish and documentation
Getting a quote
To see what your prototype will cost, upload a drawing for an instant estimate. A Wexmar estimator confirms the price before it is firm. Call (315) 400-2654, Monday through Friday, 7 to 4 Eastern.