Getting a prototype made is exciting. It means the design is real, it can be tested, and you’re one step closer to production. But one mistake I see companies make over and over is treating prototype machining and production machining as two separate projects.
That approach usually ends up costing more time and money than it should.
A lot of companies send their prototype to the fastest shop they can find. The part works, everyone is happy, and then they start looking for a completely different machine shop to build production quantities.
That’s where the headaches begin.
The new shop has to start from scratch. They have to interpret the drawing, develop their own machining strategy, build fixtures, write CNC programs, determine inspection methods, and figure out what the original shop learned during prototyping. Even if the parts meet the print, they aren’t always made the same way, and that can create problems once assemblies, repeatability, and production schedules come into play.
At Euro Machining, we approach prototypes differently.
When we machine your prototype, we’re already thinking about production. We’re asking ourselves:
- Will this setup still make sense if we need to make 200 parts instead of two?
- Are there tolerances that are unnecessarily tight and will drive up production cost?
- Is there a better way to fixture the part?
- Will this surface finish be repeatable without a lot of manual work?
- Are there material or certification requirements we’ll need later?
These are conversations that are much easier to have before production begins than after purchase orders have been released.
Designing for Production
Not every prototype is designed with manufacturing in mind. That’s completely normal. During development, engineers are focused on making the product work.
But there are a few things that can make a huge difference when it’s time to scale.
Tolerances
Every tight tolerance adds machining time, inspection time, and cost. Sometimes every dimension truly matters. Other times, only a handful of features are critical. Identifying those early can significantly reduce production costs without affecting performance.
Surface Finish
It’s easy to achieve a beautiful finish on a prototype when you’re making one or two parts. Doing it consistently on hundreds of parts is a different challenge. We like to establish a repeatable process early so there aren’t any surprises later.
Material and Traceability
Many prototype parts are built using readily available stock material. Production orders—especially in aerospace, medical, and semiconductor industries—often require certified material, lot traceability, and complete documentation. Planning ahead avoids delays once production begins.
Why Staying with the Same Shop Matters
When the same machine shop handles both your prototype and production, you’re not paying to solve the same problems twice.
The CNC programs already exist.
The fixtures are already built.
The inspection methods have already been proven.
The difficult features have already been worked through.
Instead of starting over, you’re building on what you’ve already invested.
That usually means faster lead times, fewer surprises, and a much smoother transition into production.
Our Philosophy
At Euro Machining, we build a lot of quick-turn prototypes, but we never look at them as one-time jobs. We treat every project as if it could eventually become a production program.
Sometimes our customers only need one part. Other times that same prototype turns into hundreds or even thousands of parts over the next few years.
By planning for production from the beginning, we don’t have to reinvent the wheel when that happens.
If you’re developing a new product and want a machine shop that can support you from the first prototype all the way through production, we’d be happy to help. Give us a call at (408) 845-9300 or reach out through our website to discuss your project.