One part, multiple processes. Machined aluminum: 3 and 5-axis CNC milling for functional parts with strict tolerances.
Get your quoteFully transparent polyurethane. Silicone molds to reproduce every detail of your design.
Get your quoteBlack PA12. Redesigned for Multi Jet Fusion: curved ribs, relief windows, and less filler material.
Get your quoteBent stainless steel. Laser cutting and CNC bending for supports, chassis, and enclosures from your 3D.
Let's talk about your part
to receive your quote with feasibility analysis.
working days to receive CNC machined parts.
materials with technical datasheet: metals, engineering plastics, and polyurethanes.
is enough to get started. From prototype to short run.
01 / What do you need to manufacture?
Each part requires its process. Choose by geometry, material, quantity, and lead time. If unsure, our engineering team reviews it with you before manufacturing.
See how it worksPrototypes and short runs
CNC · 3/5-axis milling · Turning 8working days.
I need a functional part, in metal or engineering plastic, with strict tolerances.
3 and 5-axis milling and turning from your CAD file. Highly precise parts with optimal surface finish and low setup investment: ideal from prototype to short run.
3D printing · MJF and SLA 5working days
I want complex geometries, functional parts, or appearance prototypes, without tooling.
Multi Jet Fusion for functional parts in PA12, PA11, PA12 GB, PP, and flexible TPA. Stereolithography for smooth prototypes in white, black, or clear resin. Housings, clips, ducts, and models, from a single unit.
Silicone molds · Vacuum casting 10working days.
I need between 10 and 300 units with the final product appearance.
Vacuum casting in silicone molds: rigid, flexible, or transparent polyurethane replicas, with product color and texture. Scalable, versatile, and much more economical than injection molding.
Sheet metal · Laser cutting · CNC bending 8working days.
We need brackets, chassis, or sheet metal housings, in short runs and without tooling.
Laser cutting and CNC bending of steel, stainless steel, aluminum, copper, and brass from your 3D model. Threads, inserts, and welding if the part requires it, plus the same finishes as machining: painting, zinc plating, or anodizing.
02 / This direct
An online platform and a team that reviews every request. No calls to get a quote, no minimums, no surprises in the offer.
Drag the model, one part per file, and the PDF drawing if you have it.
Our engineers analyze the feasibility of each part and send you an exact quote. If something can be manufactured better or cheaper, we'll tell you.
We handle the manufacturing, verify each part, and ship it to the address you specify. From 8 working days for CNC and sheet metal, 5 for 3D printing, and 10 for silicone molds. The exact lead time for each part is listed in the quote.
03 / Material matters
33datasheets
04 / The finish also counts
Besides manufacturing your prototype, we finish it: protection, aesthetics, or both. Each finish has its material compatibility and its effect on dimensions.
How to choose the finish
05 / Engineering tools
Two ISO 286 calculators: part tolerance and hole-to-shaft fit.
Hole or shaft: max and min dimensions, and quality comparison chart.
Open calculatorHole and shaft: clearance, transition, or interference fit, with assembly section.
Open calculatorRequesting only the precision the part needs lowers the cost without reducing quality. We make it easy: what tolerance to request, what file to send, and what material to choose.
06 / Behind every part
Proto&Go! is the online manufacturing platform of i-mas, an industrial group based in Barcelona with over 20 years of experience in mechanical engineering, product development, and manufacturing. The agility of a website with the expertise of a team that knows manufacturing inside out.
Meet the team
Manufacturing
Quality control
Proto&Go! Team07 / Real reviews
As an industrial designer, discovering this platform to make prototypes and parts has been wonderful. Working with Proto&Go! is a guarantee of peace of mind. The staff's attention is wonderful and they offer high-quality parts at very competitive prices.
Excellent service and attention. They advise and guide you in the design of your prototypes and the result could not be better.
Incredible service and commercial attention received from the Proto&Go! team. They advised us in the best possible way. I recommend it 100%.
Very pleased with your professionalism. Both in the quality of the parts and in meeting the deadlines.
We needed some urgent parts for some clients, they got in touch with us in no time and resolved all our doubts. Excellent professionals!
I had a fabulous experience with Proto&Go! every time I have worked with them. They work well and are punctual and correct in customer service.
08 / Trust us
Industrial multinationals, startups, technology centers, and universities across Europe manufacture their parts with Proto&Go!
09 / From the blog
Which process to use for marking parts and how to prepare it in CAD.
Design
Differences, quantities, and which technology is best suited for each phase.
ProductionThermal and geometric causes, and how to compensate them from the design.
QualityYour next part starts here
Upload your 3D model to the Proto&Go! platform, choose process, material, finish, and quantity. You'll receive the quote in 24 hours.
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