Pleasant Precision's Cavity Ready parts are elements of its modular mold components that allow shorter build cycles. The components are ready to provide cavity detail in many applications.

Pleasant Precision's Cavity Ready parts are elements of its modular mold components that allow shorter build cycles. The components are ready to provide cavity detail in many applications.


Rush or "Rapid use of shop hours" is a lean-manufacturing technique that shortens the time required to make molds. It was devised by Ron Pleasant, president of Pleasant Precision Inc., Kenton, Ohio, to let moldmakers work with key suppliers, share 3D design data, reduce the number of changes, and trim errors.

Pleasant uses Pro/E Wildfire to create molds based on customer designs. Then he uses his own Modular Mold System for standardizing mold components, and high-speed milling machines.

"The associative features in Pro/E Wildfire lets us design molds even when its details are incomplete. It lets us describe mold cavities without knowing the shape of the block itself. This lets us move ahead electronically, while changes and fixes are made along the way, confident that all elements will be included in the final design."

At a trade-show demonstration, Pleasant and his team set up a system that showed how a mold could be completed in just one day. Injection molds typically take eight to 12 weeks. Each morning of the show, the team designed a new injection mold and generated the corresponding NC toolpath with Pro/E, then machined and assembled the production injection mold from tool steel. At the end of each day, a newly finished mold was installed on a 190-ton injection press. Over the course of the week, the team designed and built five different molds.


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