A precise 20 tooth spur gear (Module 1) designed for functional mechanical systems, prototyping, robotics and educational engineering models. The involute profile ensures smooth meshing, low friction and reliable operation in multi stage gear trains. The model includes a high resolution STL, a clean STEP file for CAD workflows, and a dimensioned technical drawing for reference.TECHNICAL DETAILS• Tooth count: 20T• Module: 1.0• Pressure angle: 20°• Profile: Involute• Center bore• Geometry: optimized for 3D printing & CAD use• Files included: STL, STEP, dimensioned image, rendered previewPRINTINGDesigned for support free FDM printing. The geometry is optimized for clean tooth flanks and accurate meshing. Recommended materials: PLA, PETG, ABS.USE CASES• Functional gearboxes• Mechanical prototypes• Robotics and automation• Educational engineering models• Custom mechanisms• Replacement partsSERIESThis gear is part of my Module 1 gear collection, including sizes from 10T to 100T. Ideal for building complete gear trains.