Why Partner with FMS for Mold Design?
FMS Mold Design combines decades of profound engineering expertise with state-of-the-art CAD technology to deliver high-precision tooling solutions. Supported by advanced data conversion tools and high-speed connectivity, our technical infrastructure makes global communication effortless and highly secure.
Real-Time Collaborative Engineering
We have redefined remote collaboration. Through our cloud-connected design workflows, your team can engage in real-time design reviews with our engineers at any time. We function precisely like an internal extension of your own design department—a high-touch approach that drives exceptional client satisfaction worldwide.
FMS Mold Design Team delivers high-value, high-precision engineering solutions by seamlessly combining technical expertise with cost-effective execution. Our comprehensive services include mold feasibility studies, complete mold design and detailing, plastic part design and development, and advanced solid modeling.
Our Expertise & Capacity
The FMS engineering team consists of 10 dedicated designers, each bringing a minimum of 15 years of hands-on experience in mold design, manufacturing, and injection molding. All team members possess robust CAD/CAM/CAE competencies.
Our Design Director, David Zhang, leverages nearly 30 years of industry experience and a strong academic background in engineering. He possesses a profound understanding of European and American mold design and manufacturing standards (HASCO, DME, etc.). This deep integration of “real-world” manufacturing knowledge ensures every design we deliver is fully optimized for production, reducing lead times and costly modifications.
A Collaborative Partnership
We operate as a seamless extension of our clients’ internal engineering teams. Thanks to our diverse portfolio and decades of cross-industry experience, we adapt quickly to unique project requirements. We work closely with your engineers to deliver reliable, high-quality designs that strictly align with your standard operating procedures.
Value-Added Services
At FMS, our engineering team goes beyond standard mold design to deliver comprehensive, end-to-end technical support. Leveraging our deep industry expertise, we act as an extension of your team to provide specialized value-added services that optimize your production and fill internal capability gaps.
Our extended capabilities include:
Design for Manufacturing (DFM) and Mold Feasibility Studies / Offshore Mold Design and Third-Party Design Verification / On-Demand Engineering Resources (Additional Design Capacity)
Component Optimization Support (Assistance with Part Design) / Reverse Engineering
Design for manufacture /Mold Feasibility Studies / Designs for Off Shore Mold/Checking Designs / Additional Design Capacity /Assistance with Part Designs / Reverse Engineering
Product Scope: Armed with a rich legacy in industrial design, our team delivers high-impact solutions across highly regulated and complex sectors. Our cross-industry footprint spans Medical Devices, Aerospace, Robotics, and Automotive, as well as Consumer Electronics, Smart Home Appliances, Workplace Technologies, and Commercial Toys. We seamlessly translate specialized technical requirements into market-ready product excellence.
Design & Engineering Flexibility
Every manufacturer operates on a unique ecosystem integrating mold design with production. At FMS, our engineering team seamlessly bridges design with advanced manufacturing methodologies. We provide fully customizable deliverables, ranging from 2D component drawings and CAD formats to precise 3D surfaces and comprehensive solid CAD data. Whether your project requires only a 2D assembly for rapid quoting or full solid CAD files with detailed hardware, cooling channels, and lifters, we adapt to your workflow. With robust data translation capabilities, we ensure seamless format compatibility—delivering exactly what you need, how you need it.
Mold Design & Engineering Process
Robust mold design is the foundational element of a product’s manufacturing success. By engaging with our engineering team early in the design cycle, we help you optimize part geometry, mitigate manufacturing risks, and reduce overall tooling costs.
We understand that early-stage designs involve highly sensitive proprietary information. We treat your Intellectual Property (IP) with the strictest confidentiality, and we are fully prepared to execute a Non-Disclosure Agreement (NDA) before reviewing your concepts. Mutual trust is the cornerstone of our engineering partnerships.
Phase 1: RFQ & Initial Feasibility Assessment
To provide an accurate initial quotation and perform a preliminary Design for Manufacturing (DFM) review, we require the following baseline data:
• Product Geometry: Part drawings, 3D concept models, rough sketches, or physical prototypes.
• Application Environment: Product specifications, including mechanical performance requirements and operating conditions.
• Resin Specification: Intended base material (if predetermined).
• Production Volume: Estimated Annual Usage (EAU) and target production batch sizes to determine the appropriate tooling class (e.g., SPI Class 101 vs. Class 103).
During this phase, our engineering team collaborates with you to evaluate the part design for manufacturability, identifying opportunities to optimize cycle times, eliminate cosmetic defects, and minimize initial tooling investments.
Phase 2: Tooling Design & Engineering Validation
Upon successful acceptance of the quotation and project award, we require a comprehensive data package to initiate the formal mold design process:
• 2D Engineering Drawings: Fully dimensioned prints in .DWG or .DXF format.
• 3D CAD Data: Native CAD files or universal formats (.STEP, .IGES, or .X_T Parasolid).
• Material & Esthetics: Final confirmation of the raw material resin, grade, and color (Pantone/RAL or texture requirements).
• Critical-to-Quality (CTQ) Dimensions: A maximum of 5 key inspection measurements for quality control tracking.
• Project Governance: Designated primary engineering and commercial contacts for technical queries and milestone updates.
How We Execute Mold Design
Our process begins by gathering all necessary project data to provide an accurate initial quotation. We then perform a comprehensive Design for Manufacturability (DFM) review to optimize the part for production and identify potential cost savings. Following this, we generate a detailed Mold Design Specification (MDS). This guide outlines all critical requirements, including tool specifications, design standards, steel types, standard components, resin selection, shrinkage allowances, and processing parameters.
This specification guide is shared across our design, project management, and production engineering teams to ensure absolute consistency from concept to final manufacturing. Throughout production, we enforce a strict quality control workflow to maintain seamless data integrity between our 3D design models and CNC programming.
Our Stage-Gate Mold Design Process:
1. Mold Specification & Requirement Definition
2. Preliminary Tool Schematic & Concept Layout
3. Schematic Review & Customer Approval
4. Full 3D CAD Design
5. Detailed 2D Engineering Drawings & Manufacturing Documentation
Injection mold design tips
A good design must be practical. The mold maker must be able to produce the components in a logical, orderly manner to make money. Often, close tolerance dimensions are specified when a much looser tolerance could have easily done the job.
Take an ejector pin plate, for example. Everyone knows that the thickness is basically irrelevant, but usually the dimension given is a close tolerance size. An experienced toolmaker will just ignore the tolerance and proceed, but nowadays, with the specialization of tasks in the shop, a less skilled operator would waste precious time holding an unreasonable tolerance.
The 3D geometry must be clean. The fast pace of mold making today makes it essential to have efficient, reliable software. The days of vague sketches, or toolmakers making up the design as they go are long gone. There are many excellent companies that offer high end software programs for designing molds, dies, and just about any kind of tooling you can imagine.
CNC machines need clean geometry to run properly. If the design is sloppy and the translation of different software messy, the end result will show it. Plus, the operator will have a much easier time running the programs with clean geometry.
The design must be clear in it’s function. It is maddening for a plastic injection mold maker to spend hours deciphering what the designer means. Information that is assumed or omitted can delay the construction by days and cause unnecessary errors. Why should a toolmaker spend time looking up information that was right in front of the designer at one time?
It is always much easier to include notes or details that show what is required than to search it out later on. Once the design is in process, and the information is available, why not simply give the mold maker the same information? For example, a 3D drawing can visually clarify many questions.
Mold Design Tips
Hasco Standard Components
Obviously there are many other tips that are more specific, here is a mold design checklist to help.
Injection mold design is complex and allows no room for error. Investing in a quality training tool, such as the Injection Mold Design Tutorial makes sense for everyone in the design department.
Whether you are a veteran designer or novice, there is always more to learn. Parting lines, water lines, gates, runners, shut-offs, lifters, slides, venting, textures, manufacturablility, shrinkage, fits and function are just few of the many considerations.
Before plastic injection molding tooling, our team works on mold design. Mold deisgning determines minute factors such as the angles and wall thickness. The texture of the mold and the measurement as per the precision are also important.
The direction the line of draw
The direction of the line of the draw is important because it directly impacts how the two halves of the mold sit together. This decides the final product, so the direction of the draw should be pre-decided in injection mold tooling.
Amount of texture
The texture is decided by the design of the part. Ideally, there is the need for a certain texture because it helps with the grip of a delicate part. However, we can also provide molding tools with a glossy finish to give a smooth appearance.
Angle issues
Harsh angles like 90 degrees are not preferable at close proximity to the parting line. We resolve all of these problems during the design process. The mold tooling needs to go smoothly for better production capacity.
Temperature control within the tool
please do not need to worry about temperature control. the tool temperature resistant is a good choice, so that the fluid does not damage the tool during the molding process.
Wall thickness
The wall thickness should always be uniform across the entire part. Because the fluid, when inserted, can cool evenly without causing warping or inconsistent setting. The medical device verification and validation depends on how it dries, determined by wall thickness.
Filler requirements
You should know the core characteristics of the filler you are opting for on the basis of strength and durability. the supplier should offer contract medical manufacturing to help the clients add several services as per need.
Good and functional medical equipment is dependent on the mold design, which is only possible to make with the utmost care for quality and precision. injection mold designer needs to adhere to the medical standards while custom mold and design as per the client requirements.
Precise injection molding tool design speeds up the streamlining process. It also reduces costs, optimizes daily operations, and impacts the quality of the parts manufactured.
Now that you know what injection molding is and its processes, let’s show you some tips that’ll guide your production.
They include the following:
1. FOCUS ON MATERIAL SELECTION:
We cannot emphasize enough that the material you opt for in creating your injection molding products is important. Using the right material will ensure that you design a finished product with the highest quality.
What’s more, a product with remarkable quality will tend to last longer. It’ll also save you the cost of production since you won’t have to waste extra material to recreate these products or replace damaged parts.
Therefore, dedicate the time, energy, and research needed to choose the right material that will be most suited for your components.
On the other hand, it is worth noting that there is a range of materials and each of them reacts differently to the injection molding process.
Thus, you need to know what to expect ahead of time in terms of cooling rates, minimum wall thickness, shrinkage, and durability.
2. ADD TEXTURE INTO YOUR DESIGN:
Textured products give your designs more appeal, which is quite common to find several products featuring it.
Accordingly, there are two approaches you can adopt to adding textures into your injection molded projects. The first is adding the texture using a specialized mold that includes these textures as the product is molded.
On the contrary, there’s the alternative of waiting after the injection molding process before adding the texture.
Now the first option will save you time and money since there are really no secondary texture processes to go through.
Therefore, if you choose to go that route, here’s what you can do. Opt for etched or milled molds that will help in creating the textured product.
3. COLLABORATE WITH AN ENGINEER:
Did you know that collaborating with an engineer can save you the time, energy, and extra resources that may be required to create your components?
An engineer or specialist in the field has advanced knowledge on injection molding, as well as, the intricacies of mold design. This extensive knowledge, therefore, makes it easy to enhance the design of your components.
It will ensure that you get molds and components feature the qualities you’ve already mapped out.
That being the case, it’s now left for you to search for a reputable engineer in the field who will be able to offer comprehensive services.
The engineer or professional company you settle for will be able to answer your queries or concerns you have regarding the injection molding process.
4. CONSIDER THE PRODUCT’S WALL THICKNESS:
It may be useful to reduce the product’s wall thickness in a bid to save money. The same can be said about aiming to streamline the injection molding process.
However, while aiming to gain these benefits, you also have to ensure that these parts are not too thin. If they are, you’ll end up with a finished product that is weak or unreliable.
Therefore, it’s useful to consider shrinkage and also create designs with the right wall thickness. It’ll ensure that you end up with a successful part and even save you money in the long run.
These are the tips for injection molding design and they should guide your design of parts that’ll stand the test of time.
The design process will reduce the wastage of resources and, therefore, save you money.
And remember, there’s a reputable engineer you should also fall back on to get professional help in your design process. This engineer will steer you on the right path if at any point you’re making mistakes that could pose grave consequences to your final product.
Therefore, give these tips your utmost consideration.
The global market size of the injection molding industry was $139 billion by 2021, expected to reach $233 billion by 2023 with a CAGR of 10.9%. In the interim, the injection molding industry directly relies on mold design. If the design is up to the mark, the product will prevail in the market. Similarly, mold design is a leading factor that defines the quality of the final molded part.
The perfect mold design also ensures the proper investment of money while bringing the wastage to the lowest level. Existing prototyping techniques such as 3D printing consider early testing of design ideas where the whole part can be modeled before constructing costly tooling.
Injection molding isn’t a simple process, and as many of us know, it can sometimes take quite a bit of trial and error to get your injection molding designs just right. And while every new design requires several iterations between initial conception and production, there are several things you can do now to increase the chances of your design becoming a successful product.
Focus on material selection: The materials you use for your injection molding products are essential when it comes to the cost of production and the quality and durability of the finished product. Make sure that you devote plenty of time, energy and research to finding materials that are most suitable for your components and will result in the highest quality finished products. Different materials respond differently to the injection molding process and it’s important that you know what to expect when it comes to shrinkage, minimum wall thickness, cooling rates, and durability.
Incorporate texture into your design: There are many different ways to create texture in injection molded projects. Some manufacturers choose to add texture after the injection molding process has been completed, but it’s possible to create a textured product with a specialized mold. Etched or milled molds are effective at creating a textured product. By incorporating texture into your mold design, you can save time and money that would otherwise be spent on secondary texture processes.
Think about wall thickness: Reducing wall thickness can save you money and streamline the injection molding process, but going too thin might leave you with a part that’s weak or unsuitable for its intended purpose. Factor in shrinkage and create designs with wall thickness that will result in the most successful part possible.
Work with an engineer: Without extensive knowledge of injection molding and the intricacies of mold design, it’s difficult to optimize the design of your components. Working with an engineer who specializes in injection molding is the best way to achieve molds and components that have all of the qualities you want. Look for a reputable engineer who can provide you with comprehensive services and answer any questions you have about the injection molding process
The main goal of mold design and tooling is to create a product with high manufacturability—a high-quality process that is simple and efficient, long-lasting, easy to operate and maintain, and that meets all customer specifications at the lowest possible cost. Fulfilling these expectations depends on designing the best tooling option for each customer’s needs.
To accomplish this, tooling decisions must be made in the earliest design stages. The tool-maker must be involved as early as possible to provide a realistic machining perspective on product design, requested tolerances, tool design, selected materials, and associated costs. Taking this step up front is the best way to eliminate wasted effort and rework, which adds significant cost to the tooling budget. Part design and tool design are dependent on each other and thus should be done concurrently whenever possible.
For good reason, customers are always concerned about cost. After all, tool-making is one of the highest expenses in the production process. Properly designing, building, and using tooling for each part requires a highly skilled team of engineers and technicians utilizing the latest in sophisticated design and manufacturing technologies. Labor cost can be optimized, however, by working closely with an experienced, efficient tooling team that makes wise decisions on material selection and design tradeoffs, early in the design process.
In an effort to save costs up front, some companies shop tooling according to price, looking for the lowest bid. There is usually a not-so-good reason behind lowball machining/tooling bids, including poor quality, poor repeatability, inferior tooling, improper materials, low operational skills, and waste/rework.
Other companies trying to beat a deadline may select a tool vendor quickly, hoping “things turn out right.” Typically, however, lack of due diligence leads to oversights or cut corners that take much longer to straighten out. Although rushing might get the first shots completed quickly, chances are the final submittal won’t be any faster.
The best way to get maximum value for your tooling budget is to consider lifecycle costs, not up-front costs. The ultimate goal is quality and repeatability. This is achieved by working with an experienced injection molder that takes the time to completely understand the customer’s needs, goals for the product, and production expectations and designs the best possible mold/tooling package to meet those needs. Up-front costs for quality tooling may be higher compared to cheaper vendors or offshore suppliers, but the payback come quickly in higher quality, fewer defects, greater throughput, longer-lasting equipment, and over better return on your tooling investment—leading, ultimately, to higher customer satisfaction and loyalty.
If you’re looking to hire an expert in mold design, you may be looking for certain skills or keywords on resumes to indicate their level of proficiency in the field. An expert level designer should have at minimum five years of proficient design experience, at least 5 years of experience in injection molding, and a minimum of 10 years in a manufacturing and molding environment. Beyond those years of experience, they should have some of these skills included in their experience:
1?Problem solving – You can expect that every design will have a problem, whether that is something small or large enough to require a complete redesign. The expert level designer will have the experience to minimize the risks on every design and find a solution to every problem as it arises.
2?Plastic part design – Molding plastic is similar to molding other materials, but it does have unique characteristics that make it a challenge for some designs to mold easily. An expert in plastic mold design will know what changes to suggest for smaller and higher tolerance parts, or for products based on industry standards. An expert will be able to design for automotive products, overlay products, or for the medical industry without the need to restudy standards and criteria to achieve certification.
3?Software design – There are a handful of design software that will create molds. AutoCAD, Unigraphics, SolidWorks, and Pro-E are the dominant software packages used, and all are similar in their function. An expert may have knowledge of all mentioned, but will most likely be very fluent in the software used frequently. Most designers learn on one or two of the software packages and then hone their skills using each repetitively in day to day activities. Designers should also be able to create a replacement part database for maintenance teams to keep the molds in service and quickly repair as needed. That may be a list in a spreadsheet with 2D drawings as a guide, or separate parts designed in the same software for the mold.
4?New product development – Mold design is just part of a product lifecycle. Every part starts as an idea, then moves to a 3D design, and then into the physical mold creation. The designer should participate in the mold creation to ensure their design is translated to the mold and their concept will actually work in trials and production. The development cycle is more than just watching parts come out of a mold. It’s investing in what does and doesn’t work, then correcting and improving for the future.
5?CNC knowledge and setup – Most molds are created via Computer Numerical Control (CNC) software and machines. While having a deep knowledge of programming CNC machines and cut paths isn’t required, understanding the basics of software to generate them should be a standard requirement. Expert mod designers should be able to understand the concepts, speak the language, and help the tool creators turn the design into a physical mold.
6?Mold Flow Analysis – An expert mold designer should be able to assist or complete a flow analysis on their design to determine how well it will produce parts. These analyses will attribute to faster cycle times due to optimized molding processes, reduce the overall mold test cycles, and reduce your delivery time for parts. While it can be an added cost to the development process, the designer can complete the analysis quickly and offer suggestions to increase capability and productivity that will benefit the mold and product in the future.
7?ISO Standards – An expert mold designer should be up to date on the latest International Standards Organization (ISO) guidelines that the part design and production facility is incorporated under. The product may be required to undergo testing per ISO standards to prove compliant for overseas distribution. In that case, the designer may need to adjust the part or mold design to incorporate extra features to support testing and documentation for verification.
8?Knowledge of GD&T – General Dimensioning and Tolerancing (GD&T) outlines tolerances on a given part and product that are not specifically noted. The criteria for the tolerance is set under a general set of rules based on the industry the part is designed for or a governing set of guidelines such as Mid-America Machining engineering standards, ASME 14.5 GD&T, ANSI 14.5M, or ANSYS standards. An expert mold designer should know basics of GD&T and be able to investigate any additional requirements for a given industry or product design.
9?Knowledge of CMM – A Coordinate Measurement Machine (CMM) is able to measure parts based on a set of datum coordinates or points for verification of size. CMM machines are commonly used in the development of the molds to verify parts meet the design and tolerances, and then on a certain frequency during production of the product. An expert designer will have the basic understanding of the CMM machines and how it is utilized for verification, plus be able to help coordinate and design checking fixtures for the product or part the mold produce.
A mold designer doesn’t necessarily need a high-level degree to get started in the field. Employers will require at least a high school diploma, but a post secondary certificate or associate degree in plastics engineering technology, manufacturing technology, or mold design is a great option to jump start a new career. Some of that knowledge may also come from a work-study program or apprenticeship programs with a big commitment for on-the-job training. Being a mold designer may include using CNC machines, so having additional training and knowledge on setting up and running a production run using this type of automated equipment is an added benefit. A large portion of your work as a mold designer will be computer based using a design software. The business you work for may have a specific program for design, such as AutoCAD, SolidWorks, or Unigraphics. Having knowledge of that software will be fundamental as a designer, and some employers may provide on-the-job training to entry-level designers or send them to an external program to learn the software basics.
Whether you have a new part, are updating an existing one, or changing the manufacturing process, it’s important to design for manufacturing. The short and long-term cost/timing implications can be large if you’re not designing a component with the manufacturing process in mind. you should learn about everything from the injection molding process, to design tips for various part details.
hope that you are better informed and can use this knowledge to optimize your components for plastic injection molding. If you’re designing a plastic part, we highly recommend to work with an excellent mold engineering company. they can leverage years of experience, a network of suppliers, in-house injection mold design, mold building, and injection molding to make your product come to life quickly and efficiently.