Engineering resources for design and sourcing decisions
These guides cover the practical decisions behind functional plastic components: material behavior, molding and machining routes, gear geometry, tolerance planning, inspection and RFQ preparation.
Use them to frame a design review or supplier discussion. Final dimensions, resin grades and acceptance criteria still belong on the project drawing and specification.
Where to begin
Design for molding
Review walls, draft, ribs, bosses, gates, parting and shrinkage-sensitive features before tooling.
Plastic gearing
Treat the gear pair, center distance, bore, shaft support and backlash as a system.
Material selection
Compare the actual environment, wear pair, moisture and temperature conditions rather than selecting by a single datasheet property.
