CNC Model Viewer

CNC Model Viewer is a professional 3D CAD viewer for engineers, machinists, and designers. It is highly optimized for iOS and capable of handling massive assemblies at a consistent 120fps.

OPEN ANY CAD FILE
• Supports STEP, IGES, STL, OBJ, glTF, GLB, PLY, VRML, and BREP formats
• Import files from the Files app, email, or drag and drop
• Browse and organize imported models with the built-in file explorer

MEASURE & INSPECT
• Select faces and edges to measure diameters, distances, angles, lengths, and other dimensions
• Apple Pencil support on iPad with hover previews in Measurement Mode for precise target selection before tapping
• See live measurement previews while hovering, including feature highlights and measurement guide lines
• Quickly inspect edges, faces, holes, countersinks, counterbores, and other circular features
• Toggle between millimeters and inches
• Navigate assembly hierarchies with the part tree view

MATERIALS & WEIGHT
• Built-in Material Library for assigning materials to parts
• Calculate model weight based on the selected material
• Assign materials per component to accurately calculate total weight for multi-material assemblies

CUSTOMIZE YOUR VIEW
• Wireframe, shaded, and edge display modes
• Customizable part, edge, and background colors
• Dark mode support
• Capture and share model screenshots