Protoshop Offers High Quality,
Rapid Prototype Injection Molding and Mold Fabrication

Rapid Prototype Injection Molding Machines collage

Protoshop Molded Part Services

We aim to replicate production mold quality as closely as possible. Our customers are not limited by part geometry. If it can be molded, we can do it! We’ve fabricated thousands of successful prototype molds.

You’re not alone. Let our experienced plastics engineers review your part model and provide guidance which will yield prototype parts that meet your functional requirements.

What is Prototype Tooling?

The terms “tooling” and “mold” are interchangeable. Prototype tooling fills a very important need during product development of providing plastic injection molded parts. Those parts are used for testing against product requirements. Prototype tooling is typically implemented immediately following a period of development, testing and iteration using 3D printed parts. 3D printed parts are a good fit for early development since a low number of parts may be built quickly. The drawback of 3D printed parts is that larger numbers of parts are expensive and impractical. Also, testing with actual injection molded materials becomes more critical as development progresses. At that point, it’s important to fabricate a set of prototype tooling.

Prototype tooling is typically fabricated using CNC machining to build mold cavities in soft metal that allow for injection molding of parts in low quantities to support development. The soft metal allows molds to be fabricated and iterated quickly.

Ideally, prototype tooling yields molded parts that closely replicate production quality parts. When parts do not replicate production quality with issues such as part inconsistency or inaccuracy, it is more difficult for engineers to determine root causes during testing. This can significantly increase the time needed to complete development and transfer to manufacturing as well as lead to ongoing issues that need to be resolved when the product is on the market. Therefore, accurate prototype parts are critical to effective product development.

What You Get with Protoshop

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Superior production

part quality

We strive to replicate production part quality, without sacrificing speed.

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No part geometry

Frustrated by rejected part geometry from other prototype mold vendors? Complex prototyping is our specialty including unusual materials, insert injection molding, and overmolding.

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Rapid mold iterations

Our molds are intended to allow for quick iterations to part geometry, typically in just 1 day.

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Moldability Review

Our customers receive a complimentary moldability review of their part design where we will meet online to discuss areas that have the potential for molding defects. Personal attention ensures your part is successful the first time.

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Prototype material selection assistance

There are thousands of available thermoplastic grades. It can be difficult to select the right material without extensive plastics experience. Let us help you select the right material for your application.

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Large quantities of parts may be quickly molded

Several thousand parts may be provided per week from our prototype molds.

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Molds are transferable

Our molds may be readily transferred to any contract manufacturer as needed.

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Flexible material options

We have a variety of plastic materials in stock. We can also mold prototype parts using customer supplied materials or we can purchase new materials as needed.

How We’re Different


Protoshop differs from other prototype molders due to the proprietary injection molding method we have created for our prototype molding. Our founders have over 25 years of medical product development experience in consumable plastic products and have designed and fabricated thousands of prototype molds.


We seek to educate and work collaboratively with our customers using online moldability review meetings where we review areas of potential molding defects in their part models and explain why those areas may be an issue. Other prototype molders only provide an automated review indicating issues found by their software. We feel that this personal interaction is critical towards ensuring that your molded parts successfully meet your needs the first time.


We have invested in creating a website that significantly improves the customer experience. Our website informs customers by email when the project status changes, so you are aware of progress up to the minute. When parts are shipped, you’ll automatically receive FedEx tracking details and inspection reports. Requests to mold additional parts and to iterate molds are quickly and easily completed on the website. The complete history of your project is always available including quotes, packing slips, inspection reports, and mold iterations that can be viewed and downloaded at any time.

Staff working on prototype molders

How the Prototyping Process Works

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Upload part model for prototype mold quote

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Accept quote

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Mold fabrication completed

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Mold sampling (25 ea) and client review

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Order prototype parts as needed

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Request rapid mold iterations as needed

General Information

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Lead Time

Typically 1 week, we will indicate the lead time when we provide your quote.

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Maximum Part Size

Part may be up to 8″ x 6″ x4″ (200 x 150 x 100 mm)

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Maximum Part Volume

Shot volume up to 6 oz (170 g)

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Typically <0.004″ (0.1 mm).
Tolerance of 0.001″ (0.025 mm) is possible with certain materials and part geometry. Let’s discuss your application.

Based on 7 reviews
Dana Taylor
Dana Taylor
If you're in need of a molding prototype shop, Dylann and Jimmy at Protoshop are sure to not only meet but exceed your expectations. Their team demonstrates remarkable responsiveness and proactiveness, contributing to an exceptionally efficient overall process. The speed at which they deliver top-notch work is truly impressive. Protoshop's commitment to customer satisfaction is apparent in their flexibility and willingness to closely collaborate with clients to address specific needs. An exemplary instance of this was their accommodation of our request to have our customer onsite for part evaluation and mold changes while we were present. What sets Protoshop apart is not solely their technical proficiency but also their dedication to providing valuable insights and design advice. Their expertise extends beyond standard projects, showcasing proficiency in handling complex components for diverse applications, be it over-molded sealing parts or flexible components. In conclusion, if you're on the lookout for a reliable and efficient partner for your manufacturing and molding requirements, I wholeheartedly recommend Protoshop. Their combination of expertise, responsiveness, and commitment to customer satisfaction makes them an exceptional choice for a variety of projects.
Brittany Mason
Brittany Mason
I have worked with Photoshop on several mold designs over the past year. From the moment I reached out to them with an inquiry, they were prompt in their communication and eager to assist me. I have greatly appreciated and benefited from their extensive expertise and prompt feedback. They consistently offering valuable suggestions and insights that ultimately saved us money in the overall design. As for the quality of work they provided, Dylann and her team have always come through. If any issues do arise, they have been quick to offer solutions and kept us up to date throughout the whole process. If you're looking for a reliable partner for your plastics molding needs, I would check them out.
Stacie Depner
Stacie Depner
Having worked with Dylann and Jimmy prior to Protoshop, I knew the immense level of expertise they have for this business and it proved to carry through. They are honest straight shooters that will help guide you and find the best solution for your molds. We needed a mild that could be versatile and allow us to easily change out one side of the design. Dylann helped us come up with an approach that will allow us to continuously iteration the design without having to make a whole new mold every time.
Chad Follmar
Chad Follmar
Dylann and team are wonderful to work with. On multiple programs, they have delivered quality product in a matter of days. The design for moldability support is unparalled to ensure your part is ready to order.
Garrett Garner
Garrett Garner
We work regularly with Protoshop on a variety of complex components for various projects. They are an excellent company to work with providing a vast history of experience to help their clients optimize designs. We have worked with them on microfluidic chips with small feature sizes, over molded sealing parts and flexible parts. They have experience working with many materials including Topas (COC), polycarbonate, TPE, PE, and PP. I would highly recommend reaching out on your next project. The team is very responsive to design changes as well as delivering to tight timelines. They also offer design advice and best practices which have helped expedite design iterations.
Steven Soeder
Steven Soeder
Great experience with Protoshop. Dylann is extremely responsive and great to work with. Very fast turn-around. Worked with us on our order to get what we needed. I was able to drop ship 3d printed parts from another vendor to Protoshop to have them match-fit and incorporated into our tooling. I will be back again.
Wendell Woidyla
Wendell Woidyla
Dylann at Protoshop is excellent to work with: highly responsive and proactive. This is possibly the fastest, high-quality work I have ever witnessed. 1 week...from payment (start) to delivery (after CTQ measurements at Protoshop), we had 100 test samples of a component we intend to use in high volume manufacturing. Thank you for the tremendous work! I would highly recommend Protoshop, and will plan to use Protoshop services in the future.