ForgeShape: 3D Print Repair

A print fails and the model still looks fine on screen. ForgeShape opens STL, STEP, IGES, OBJ, GLB and 3MF models on your device, finds what blocks printing — open edges, wrong normals, thin walls, overhangs — repairs it, and exports STL or 3MF for your slicer. It also converts between CAD and mesh formats. Nothing is ever uploaded. Key features: - Import STEP (.step/.stp), IGES (.iges/.igs), STL, OBJ, binary GLB and 3MF models, all parsed on device - Automatic detection: open edges, non-manifold edges, self-intersection (up to 500k triangles), surface orientation, duplicate faces, degenerate triangles, wall thickness, overhang, units and size - Each body is classified as a solid candidate or an open shell; closed manifold models report a measured volume - Guided repairs: weld and stitch boundaries, fix surface orientation, remove duplicate faces, fill small holes, remove degenerate triangles, or run them all in sequence - Every repair previews before/after side by side and applies only when you confirm; deep repair escalates tolerance until the model closes and reports how far the geometry moved - Pick a finding to highlight the affected edges and faces, or let the camera turn to frame it on the far side of the model - Inspect it your way: shaded, wireframe or both, Y-up and Z-up conventions, focus on any surface point, and level of detail that keeps large meshes responsive - Select a face to measure planar width, height and area, or cylinder radius, in source units - Fit the model to a print-size profile with one uniform scale, then recheck automatically - The print line exports STL or 3MF; the conversion line exports OBJ, GLB, STL, 3MF or STEP - Source colors are read and shown: OBJ materials, 3MF color groups and baked textures, GLB base colors; on export only GLB carries color - Optional Reverse to CAD: recognized planar and cylindrical faces become analytic geometry in an exported STEP - Honest reports: every check names its mesh-snapshot evidence and lists what remains unresolved For 3D-printing users, engineers converting between STEP/IGES and mesh formats, makers fixing scanned or downloaded models, and teams delivering in multiple formats. Common questions: - Is ForgeShape a slicer? No. It handles the step before slicing — checking and repairing the model — and does not generate G-code. - Can it repair every broken model? No. Issues beyond the supported scope — non-manifold edges, large openings — are labelled as not automatically repairable. Deep repair closes more models, but states how much the shape changed; applying it is your decision. - Does Reverse to CAD recover the full design? Unrecognized regions stay triangle mesh, and the exported STEP is not a full reconstruction: no feature history, and no guarantee of a machinable solid. - Are models uploaded to a server? Never. Import, checking, repair, measurement and export all happen on device. No account, no cloud, and you choose where files are saved. Pricing & Access - Free: import and view every supported format, run every check, and apply every repair. - Pro subscription: export and save files, and locate findings on the model. Weekly, monthly or annual, active on Mac, iPhone, iPad and Vision Pro with the same Apple Account. - Payment is charged to your App Store account. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the current period ends. - Manage or cancel subscriptions in your App Store account settings. Privacy & Terms - Subscriptions, refunds and restores are handled by Apple through your App Store account. - Privacy Policy: https://h53d.github.io/fs/policy.html - Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Need help or want to share feedback? Email iuway@foowei.com or visit https://h53d.github.io/fs/support.html.