- When designing your product, keep in mind how the mold will open and close around the product. The least expensive and maintenance mold has two pieces. If your product will require a number of mold pieces, you are increasing the chance of wear and tear due to operator handling and additional parting lines required. A good example is the toy industry, which has mastered the concept of 2-piece mold/product design, resulting in low cost tools used in high production.
- Tongue and groove parting lines maintains better registration over the life of the mold.
- Avoid parting line on sharp corners or along knife edges, always add a radius.
- Avoid vertical parting lines.
- Today’s products require multiple piece molds, various types of inserts (stainless, alum., brass), molded threads for caps, internal threads, caster mounting plates are molded in product.
Rotational Molding Design Guidelines
Greg Stout is the founder and owner of plastic design company, Blue Reed LLC, in Stow, Ohio and his company also offers rotational molding design guidelines to make sure your product is the best it can be. Blue Reed is no stranger to the plastic industry. Here are some tips that they have created over the years in the business to help you better understand what you would like designed by Blue Reed or even if you’re designing a product yourself.