Groups Reverse Engineering CAD for Creativity and Innovation ANSYS CFD Fluent Naval Architecture Simulia ABAQUS Mechanical Engineering Autodesk Alias Arduino CFD and FEA AutoDesk Moldflow Revit Drones Design Generative Design / Topology Optimization Autodesk AutoCAD Autodesk Inventor Users 3D Printers, Makers, DIY hacks, solutions and post printing tools Technical Drawing/Drafting Catia Users GrabCAD Community User Group