Plastic Machining: Design Guide for Plastic Parts

How to use the Plastic Design Guide

  1. Refer to the Design Considerations at the bottom of this page. Consider whether each item on the checklist is a factor in the application or affects performance requirements for the component design.
  2. Select the categories that have the greatest affect on your application.
  3. Review the materials in the Free Plastic Properties Handbook and make a list of possible material candidates.
  4. Contact our technical support to discuss options or ask additional questions.

Custom Plastic Machined Components

Plastic Machining Design Considerations

  • Thermosensitivity – tolerance can change in different temperature conditions
  • Sensitivity to humidity and hygroscopic absorption affects tolerance
  • Sensitivity to chemicals and oils
  • Notch sensitive corners and square ID’s
  • Tolerances
  • High loads
  • High impact
  • Fatigue loading or cycle loading requires consideration of flexing, deflecting, and compression
  • Temperature – max/min extent of time
  • Electrical considerations such as insulating properties
  • Wear resistance or abrasion resistance
  • Dimensional shape retention (load, cold flow, temperature)
  • Regulatory requirements (FDA, UL, etc.)
  • Appearance (color, texture)
  • Optical requirements
  • Outdoor use

Now that you’ve identified the important factors in your application, evaluate material specs in the Plastic Properties Handbook and select your material!

Plastic Machining:Design Considerations For Plastic Prototypes

What design considerations are necessary when purchasing plastic prototypes with full function?

In order to get to market fast, plastic prototypes should be fully functional. Plastic prototypes with full function of course offer the same tight tolerances and high precision as do plastic machined components, as they are one in the same. Simply fast, fully functional plastic prototypes are made in order to meet stricter deadlines, and are often ordered in smaller quantities. When ordering plastic machined prototypes, the considerations are the same as when ordering production plastic machined parts. The design specifications for production plastic machining and fast plastic prototypes are as follows:

Design Considerations For Plastic Prototypes and Plastic Machining

-Thermosensitivity – tolerance can change in different temperature conditions
-Sensitivity to humidity and hygroscopic absorption affects tolerance
-Sensitivity to chemicals and oils
-Notch sensitive corners and square ID’s
-Tolerances
-High loads
-High impact
-Fatigue loading or cycle loading requires consideration of flexing, deflecting, and compression
-Temperature – max/min extent of time
-Electrical considerations such as insulating properties
-Wear resistance or abrasion resistance
-Dimensional shape retention (load, cold flow, temperature)
-Regulatory requirements (FDA, UL, etc.)
-Appearance (color, texture)
-Optical requirements
-Outdoor use

Now that you’ve identified the important factors in your application, evaluate material specs in the Free Plastic Properties Handbook and select your material!

Plastic Machining and Plastic Prototypes With Engineering Assistance From Experts-The Solution

Machining Plastic is the perfect solution for many varied component needs in numerous critical industries however, most engineers may not have the necessary knowledge.

Many of the brightest, most talented engineers do not have the knowledge required in order to know what material is best for a component or plastic prototype need. Simply the reason being that until recently, plastic machining was not taught in engineering schools. Currently the presence of plastic machining courses is limited to only a small number of schools. In order to select the proper material, contact a plastic machining expert for design application assistance.

Design considerations when machining plastic are unique to plastic.  One with experience machining metal for example, would not be aware of these specifications.  When ordering plastic machined components or plastic prototypes, the following considerations are evaluated:

  • Thermosensitivity
  • Sensitivity to humidity and hygroscopic absorption
  • Sensitivity to chemicals and oils
  • Notch sensitive corners and square ID’s
  • Tolerances
  • High loads
  • High impact
  • Fatigue loading or cycle loading
  • Temperature
  • Electrical considerations
  • Wear resistance or abrasion resistance
  • Dimensional shape retention
  • Regulatory requirements (such as FDA or UL)
  • Appearance
  • Optical requirements
  • Whether or not part is for outdoor use

A plastic machining expert has the knowledge and expertise to help you select the best material for plastic machined parts and plastic prototypes according to the necessary specifications and considerations.

At EPP Corporation we provide design application, engineering, and purchasing assistant to all customers for both plastic machining production and fast plastic prototypes.

We also have an online plastic design as a free, excellent resource that compares different materials based on above criteria, as well as comparing the plastic materials side by side

To download our FREE Plastic Properties Handbook and Design Guide CLICK HERE

Plastic Machining: Selecting The Right Material-Water Absorbtion

Not all plastic materials are suitable for every application. Properties such as temperature, impact strength, and wear resistance must be evaluated, in order to select the perfect material for a the specific plastic machined part’s application.

When selecting the proper material for any specific plastic application, the choice should be made given with an emphasis on the most crucial properties for the part’s specific use. Impact strength is often a critical property that must be considered.

Water absorption refers to a material’s ability to soak water and moisture, measured at a rate of percentage per 24 hours. This particular specification is crucial to analyze when a custom plastic machined part will be utilized in a high humidity application. The higher a plastic materials water absorption rate, the greater a parts dimensions will increase.  Such an increase in size will also change tolerances if a material with a high absorption rate is selected for humid applications.

If your plastic machining needs require a low water absorption rate or a rate of zero, the following materials should be considered as possible solutions:

In order to select the correct material, download the Plastic Properties Handbook
Materials are compared to one another among a wide range of design considerations, leading to a very efficient selection process.

Plastic materials vary vastly and selecting the right one for your application is crucial for a plastic machined parts’ success.

custom plastic machining

Plastic Machining: Engineering Help From Experts For Plastic Machining and Plastic Prototypes

A plastic machining expert can provide several advantages that a typical vendor cannot. From a true plastic machining expert comes years of experience and expertise. Through our 35 years of experience and expertise in custom plastic machining manufacturing at EPP, we are able to extend our hand to customers in regards to engineering assistance.

We are equipped to offer plastic machining production (cnc milling, cnc lathe, screw machining, custom plastic manifolds), as well as fast plastic prototypes, along with  engineering assistance.  Our full engineering assistance is available for both custom plastic machined component and fast plastic prototype customers.

At EPP Corp. we can help with:

-Free application engineering
Free Design Guide for Plastic Machining
Free Plastic Materials Handbook
Helpful Articles
-Pre Production Quantities
-High quality and a reliable source for production quantities

If you’re working on a project that involves any custom plastic machined parts, or new products that require fast plastic prototypes, the best thing you can do is simply contact us! Email your drawings to sales@eppcorp.com or just give us a call with any questions. We will help you find the ideal material and manufacturing method for your application.

plastic prototypes-plastic machining-plastic machined prototypes

Plastic Machining:Selecting The Right Plastic Material-Impact Strength

Not all plastic materials are suitable for every application. Properties such as temperature, water absorption, and wear resistance must be evaluated, in order to select the perfect material for a the specific plastic machined part’s application.

When selecting the proper plastic material for any specific application, the choice should be made with an emphasis on the most crucial properties for the part’s specific use. Impact strength is often a critical property that must be considered.

Impact strength is the maximum force or energy of a blow which can be withstood without fracture. This is essentially a measure of how well a material can withstand shock loading.

If your part requirements are meant for a high impact application , the following materials should be considered as possible solutions:

In order to select the correct material, download the Plastic Properties Handbook
Materials are compared to one another among a wide range of design considerations, leading to a very efficient selection process.

Plastic materials vary vastly and selecting the right one for your application is crucial to a part’s success.

Plastic Machining:Fast Plastic Prototypes-Don’t Slow Down Innovation

As the summer is about to end, so do vacations.   Specifically in a down economy, innovation is key in order to compete both domestically and internationally.    Don’t let slow plastic prototypes halt your research and development plans any further.  Save time by ordering short-run, quick-turn plastic prototypes. Time is of the essence when it comes to new product development.  Beat your competition to the punch in order to come out ahead.  Plastic prototypes in under a week will save you time, and allow for designs to tested and perfected at a faster rate.  In order to assure the precision and the tightest tolerances, plastic prototypes should be machined in order to achieve the best results.  Being quicker to the punch in regards to innovation is a huge advantage in the market place.  Allow for fast innovation, fast plastic prototypes are the answer. Plastic machining expert EPP Corporation is pleased to be able to offer fast plastic prototyping as a valuable service for proactive companies craving innovation.  Don’t sit on the sidelines and allow for the competition to come out ahead.  America’s Premier Plastic Machining Supplier is here to help. EPP’s short-run, quick-turn plastic prototypes feature the tightest tolerances, can simple or complex, and of course free design application and material selection engineering assistance is provided. For more details about our fast plastic prototype capabilities, Click Here.

Plastic Machining: Distortion Free Custom Plastic Manifolds

Engineered Plastic Products specializes in plastic machined components used in fluid applications

One specific capability that EPP provides in regards to the movement of fluid is our manufacturing of custom plastic manifolds. When compared to metal, plastic manifolds are lighter and more compact, easier to inspect, and provide more complex fluid paths.

Manifolds often go through a bonding process that may lead to distortion and lead to looser tolerances.

EPP has the solution-
We manufacture bonded manifolds that eliminate distortion and hold tighter tolerances by using a process called Low-Temp Interfusion Bonding

What Is Low-Temp Interfusion Bonding?

Low-Temp Interfusion Bonding is a proprietary technique that produces superior bonding joints. Other plastic manufacturers simply use diffusion bonding or cement type gluing that leaves machine marks within the fluid channels. Diffusion boding creates heat, often distorting the internal features. The Low-Temp Interfusion Bonding technique eliminates any distortion, allowing us to hold much tighter tolerances. This process also creates fully polished channels without the cement marks that can impede the overall fluonics.

Contact the plastic machining experts at EPP Corporation with any custom plastic manifold needs

Plastic Machining:Plastic Prototypes In Under A Week-The Solution To Quickly Perfect Design

Quick plastic prototypes can save a company the trouble of having a flawed part being ordered.  When design changes are thought up, the risk of a piece not performing to specifications and requirements can come into play.  Factors hindering performance may have been overlooked, and if a plastic part is ordered in a large quantity prior to testing, a company may be stuck with a large expense.  A plastic machined component perfected according to design can be useless if a fault lies in the design.   What if a time crunch comes into play? What potential solution is there?

Fast plastic prototyping would be that solution.  If plastic machined prototypes can be obtained in under a week, any crisis can be averted.  Ordering fast plastic prototypes can potentially save a company from disaster, while meeting the strictest time constraints.  Obtaining a fast plastic prototype will allow research and development teams to verify that a design submitted to a plastic machining vendor will perform. The quicker a plastic machined prototype is received, the faster the design is tested, and ultimately the faster a new product can be manufactured and hit the market.  Don’t be uncertain, make sure new design changes are tested.

A plastic machining expert should be contacted for plastic machined prototypes, assuring that plastic prototypes precisely match design requirements.  A streamlined vendor with an efficient supply chain management system will be able to produce high precision plastic prototypes to meet the strictest of time constraints.

Plastic Prototypes

EPP Corporation has a proven supply chain system that guarantees the highest precision and efficiency.  For short-run, quick-turn custom plastic prototypes with delivery in one week or less contact EPP

· Plastic prototypes in one week or less
· Highest quality on tolerances up to +/- .001″
· Both simple & complex 3D parts are welcome
· Free application engineering available

Plastic Machining: Selecting The Right Plastic Material- Heat Resistance

When selecting the proper material for any specific plastic application, the choice should be made given the material’s properties. One such property when purchasing custom plastic parts is heat resistant.

Not all plastic materials are suitable for every application. Properties such as temperature, chemical resistance, and impact strength must be evaluated ultimately leading to the selecting of the perfect material for a the specific plastic machined part’s application.

Temperature is one of the main factors that must be considered in the material selection process for your plastic machining requirements.

If a plastic machined component will be utilized in a high temperature environment, the following materials should be considered as possible solutions for your application:

In order to select the correct material, download the Plastic Properties Handbook
Materials are compared to one another among a wide range of design considerations, leading to a very efficient selection process.

Plastic materials vary vastly and selecting the right one for your application is crucial for a plastic machined parts’ success.

Plastic Machining: Selecting The Right Plastic Machining Vendor For Your Custom Plastic Machined Parts

Not all plastic machining vendors are equipped to offer all parts. Other plastic machining companies may not be able to give you the best prices. The following guidelines can help you locate a fully-qualified, cost effective plastic machinining specialist for all your plastic machined component needs:

  1. Material Knowledge
  2. Purchasing Practices
  3. Equipment
  4. Quality and Price
  5. Looking For the Best

Be sure to ask potential plastic machined parts vendors how they comply with these guidelines.

If you have a need for plastic machined components, request a quote!

Plastic Machining: Free, Helpful Tools in Selecting Plastic Machined Component Materials

All plastic materials are not created equal. When having custom plastic machined parts produced, it is crucial to select the appropriate materials in order for the plastic machined components to meet desired specifications and performance requirements.  In order to simplify the process of selecting the appropriate plastic material for your machined plastic parts, EPP Corporation offers a free Plastic Properties Handbook and Plastic Machining Design Guide.

How to Use the Design Guide

  1. Refer to the Design Considerations at the bottom of this page. Consider whether each item on the checklist is a factor in the application or affects performance requirements for the component design.
  2. Select the categories that have the greatest affect on your application.
  3. Review the materials in the Plastic Properties Handbook and make a list of possible material candidates.
  4. Contact our technical support to discuss options or ask additional questions.

Custom Plastic Machined Components

Plastic Machining Design Considerations

  • Thermosensitivity – tolerance can change in different temperature conditions
  • Sensitivity to humidity and hygroscopic absorption affects tolerance
  • Sensitivity to chemicals and oils
  • Notch sensitive corners and square ID’s
  • Tolerances
  • High loads
  • High impact
  • Fatigue loading or cycle loading requires consideration of flexing, deflecting, and compression
  • Temperature – max/min extent of time
  • Electrical considerations such as insulating properties
  • Wear resistance or abrasion resistance
  • Dimensional shape retention (load, cold flow, temperature)
  • Regulatory requirements (FDA, UL, etc.)
  • Appearance (color, texture)
  • Optical requirements
  • Outdoor use

Now that you’ve identified the important factors in your application, evaluate material specs in the Plastic Properties Handbook and select your material!

Plastic Machining: Machined Plastic Components-A Low Cost, New Product Development Solution

New product development teams nationwide are frustrated with corporate cost cutting and lack of capital for their R&D plans. Valuable projects are put on hold because R&D budgets cannot cover the expensive introductory costs of new tooling and initial manufacturing of new designs. In today’s economic environment, corporate cost cutting is needed to help companies survive the recession. However, if companies can develop new products that provide value at today’s price levels, they will emerge from this recession well ahead of the competition.

Many companies are searching for ways to move new product development projects forward without breaking the bank on initial investments. Research and development, prototypes, and pilot run quantities have to be completed with very minimal investment and without compromising flexibility of quantity and design.

Smart companies have employed strategies to enhance their new product development. A good example lies in companies manufacturing products that contain plastic parts. If projects have plastic components, then the cost of tooling can be a huge obstacle. Tooling and molds can cost tens of thousands of dollars. The solution: have the plastic parts machined. Prototypes as well as the first few years of production quantities can be produced for a fraction of the cost.

Machined plastic parts include little or no tooling charges, and can be delivered in two weeks. While molding requires full commitment to a part’s design, design changes to plastic machined parts cost absolutely nothing. Request a Quote from a quality plastic machining vendor for a fast, cost-effective solution for new product development and launches.

Contact EPP Corporation now to see how custom plastic machined parts can help your new product hit the market and put your company ahead of the game!

Plastic Machining: Selecting The Right Plastic Machining Vendor For Your Custom Plastic Machined Parts

Not all plastic machining vendors are equipped to offer all parts. Others may not be able to give you the best prices. The following guidelines can help you locate a fully-qualified, cost effective plastic machining specialist for all your plastic machined components:

  1. Material Knowledge
  2. Purchasing Practices
  3. Equipment
  4. Quality and Price
  5. Looking For the Best

Be sure to ask potential plastic machined parts vendors how they comply with these guidelines.

If you have a need for plastic machined components, request a quote!