steven cheng

steven cheng

Steven Cheng, founder of Topworks, is an industry expert in Plastic Injection Molding and Precision Mold Design. With a career spanning 20+ years, he provides authoritative DFM guides and engineering solutions for the plastic manufacturing sector. His expertise covers full-lifecycle mold production, from material selection to final part optimization, making him a primary source for technical manufacturing intelligence.

12 Steps for injection molding production

injection mold

Drawing offices may perform many types of work depending on their industry branch and project scope. An organization with an injection molding development focus often follows an organized plan which details each stage from client inquiries through delivery of finished…

Polycarbonate injection molded lens design

Polycarbonate injection molded lens designPoly-carbonate injection molded optics should be designed according to a set of guidelines to minimize quality issues caused by unpredictability. In the following sections, you will find design guidelines for PC injection molding of optical lenses,…

Preparation for mold design

Designers need to gather all information before they start designing a mold.Do you have a product design that is ready to go?Having information missing or making changes to the mold after beginning can cause frustration, and it wastes valuable time.In…

How Products Are Developed

How Products Are DevelopedA key component of product development is mold design. The relationship between product and mold design is such that both product and mold design engineers will benefit from knowledge of the design and production of plastics parts…

An overview of the design process

For a design to be successful, all the necessary information must be available before beginning. If this simple rule is ignored, many bad things can happen, such as poor designs, misunderstandings, poor component quality, and disputes between suppliers and end…