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Freelance Product Designer: When is it best to outsource design and development?

When to Choose a Freelance Product Designer Whether the process is Rotomolding, injection, blow or thermoforming, if you have an idea for a new plastic part or an assembly of parts, you will need it designed for any one or all of those processes and a freelance product designer might be a good fit. Despite  Continue Reading »

Rotomolding: A Comparison of Rotomolding to Other Processes

Rotomolding compared to Blow Molding and Twin Sheet Vacuum Form Molding Rotomolding as a process is typically thought of as a means of creating large hollow parts. Anything from gas tanks for lawnmowers to playground slides to 1000 gal storage tanks. It’s a great molding process, but how does it stack up to other molding  Continue Reading »

Rotational Molders: How to Pick the Right Company for Your Project

Choosing Rotational Molders When looking at rotational molders in deciding what company you want to mold the plastic parts for your project, it comes down to many criteria. We will look at these criteria and examine them to help you get the most desirable outcome. 1. Source rotational molders by geographic location First off, you  Continue Reading »

What is Rotational Molding?

What is Rotational Molding? There are several processes to create plastic parts .. this article goes into depth answering the question “What is Rotational Molding”? . Plastic processes include; injection, blow, thermoforming, compression and extrusion molding processes to name just a few. The rotational molding process is usually thought of as a process for molding  Continue Reading »

Rotational Molding Design Guidelines Part 3

DESIGN GUIDELINES FOR ROTATIONAL MOLDING The Types of Molds Used In The Rotational Molding Process There are three different types of tooling most commonly used in Rotational molding – Cast Aluminum, CNC Machined Aluminum, Electroformed & Fabricated Sheet Metal. Each type of tooling has it’s own benefits and product design parameters. Cast Aluminum Molds Cast  Continue Reading »

Rotational Molding Design Guidelines Part 2

DESIGN GUIDELINES FOR ROTATIONAL MOLDING Venting Due to gasses that are expelled when the resin cures, a vent hole is required in all molds and therefore products. The size of the vent is dependent upon the volume of the cavity. Formula to determine vent size is 1/2″ i.d.. vent for every cubic yard of volume.  Continue Reading »

How to Choose a Type of Rotational Mold and Rotational Mold Maker

Choosing a Type of Rotational Mold and Rotational Mold Maker With some in in rotational molding, the choosing of the type of rotational mold and who to make it is a routine task. “When I need a mold, I go to XYZ and get a cast mold. That’s what I do and that’s the only  Continue Reading »

Rotational Molding Design Guidelines Part 1

DESIGN GUIDELINES FOR ROTATIONAL MOLDING Parting Lines When designing your product keep in mind how the mold will open and close around the product. The least expensive, least maintenance mold has two pieces. If your product will require multiple piece molds, you are increasing the chance of wear and flashing due to the operator handling  Continue Reading »

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