Quickparts Newsletter - October 2008

    October 2008  
:: Welcome  
      ...or Request a Quote.

  :: Monthly Spotlight:
  Design Tips from the Pros -
  Drafting & Wall Thickness

  :: What's NEWS at QP:
  FREE Gift from Quickparts

  :: Hot Item:
  NEW Shore Hardness Scale

  :: Monthly Trivia Question:
  September Trivia Winner

Customer Testimonial

"Quickparts is easy to work with. They make the rapid prototype process simple. All of my components were possible to produce. It is fantastic to see physical models of what I have designed within days of ordering. Quickparts offers excellent customer service and they worked close with me to meet my design requirements. I will be using them again for future products. Thank you.”

S.V. @ Teleflex Marine


Congratulations to our September Monthly Trivia Question Amazon.com
Gift Card Winner:

Anthony Fiore
Metra Electronics

  What would you like to
  see in QuickNOTES?
Click Here to send us
  your request.
Monthly Spotlight: How Do I?...Tips from the Pros
:: Injection Molding: Drafting & Wall Thickness
Draft and wall thickness are
two of the most critical and overlooked fundamentals
when manufacturing injection molded parts.


Draft is a design feature that involves tapering the side walls of a part to allow it to be released from the mold when the mold opens. Drafting walls in the direction of the mold helps to prevent sticking and dragging as the part ejects.

The recommended draft angle for parts is 0.5 to 1 full degree of draft on all surfaces. If your part includes textured walls, you will

need to increase the amount of draft to ensure clean ejection. We suggest that
1.5 – 2 degrees of draft be used per 0.001” of texture depth. This rule is for sidewalls of the tool that will shrink away from the cavity. Areas in the part that
will shrink toward the core of the tool will require more draft. The amount of draft needed for these walls will vary based on part design.

Wall Thickness

Wall thickness is another critical component of design that can affect the success
of your injection molded part. If the walls of your part are too thin, you may have cracking or warping of your part.

The type of plastic resin
that you choose will help determine the wall
thickness needed. Each
resin has a unique blend
of properties that include varying amounts of plasticizers, stabilizers, fillers, and other additives. These properties determine each resin’s flow and strength values. Refer to
the chart to the left to see the recommended wall thicknesses of some of the most common resins.

If you have further
or would like to receive a quote, please call your area Tooling & Production Sales Manager at 770-901-3200.

What's NEWS at Quickparts
:: FREE QuickCUBE as a Show of Our Appreciation

Quickparts is here to help you solve your custom parts needs by bringing all of the pieces together. Count on us to get you the quality parts you need in your hands when you need them.

As a show of our continued appreciation to you, our valued customer, we would like to send you a FREE QuickCUBE. If you would like to receive a QuickCUBE, please email us with the following information:

  Email Address
  Company Name
  Street Address

    Click Here to order your QuickCUBE.

Please allow 4-6 weeks for delivery.
US and Canada Residents only.
Limit 1 per Customer

Hot Item - NEW Shore Hardness Scale
:: Inside the Quickparts Learning Center

Choosing the best prototype material for your application can be tricky. One property that is especially difficult to understand and relate to is the Shore Hardness Value. Shore hardness measures the elasticity of a material.

Quickparts has created a scale that relates different Shore values to everyday products allowing you to easily compare materials and their corresponding Shore values.

Click Here to use the Shore Hardness Scale

Review Article Be the first to review this article
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