Meshworthy technical guides
Understand common model preparation problems.
Diagnose the exact model problem, choose the least destructive operation, and verify the exported result. Every guide includes a practical Meshworthy workflow, product boundaries, and primary technical references.
15 in-depth guides5 preparation tracksLocal model workflows
The library
Start with the problem in front of you.
Mesh repair
5 guidesSTL repair guide
STL repair checklist
Repair an STL file without trading one hidden defect for another. Diagnose holes, non-manifold edges, normals, shells, and the exported result in seven steps.10 min readRead guide ↗Mesh topology guide
Fix a non-manifold STL
Learn what non-manifold STL errors mean, how to find the exact edge or vertex, and which local repair to use before remeshing the whole model.9 min readRead guide ↗STL troubleshooting guide
Watertight STL won’t slice
A closed mesh can still fail because of self-intersections, zero-thickness regions, overlapping shells, extreme scale, or geometry that disappears at layer resolution.10 min readRead guide ↗Face orientation guide
Fix flipped STL normals
Distinguish a local flipped patch from an entirely inverted shell, repair face orientation, and verify positive volume without changing intended openings.9 min readRead guide ↗Mesh topology explainer
What is non-manifold geometry
Non-manifold geometry is a mesh whose edges or vertices do not describe one solid. See the types, why slicers fail on them, and how to find and fix each one.7 min readRead guide ↗File preparation
1 guideSplitting & assembly
2 guidesLarge model guide
Split an STL for 3D printing
Split a large STL around build volume, strength, seam visibility, and assembly. Learn how to place cuts, connectors, clearances, and a real joint test.11 min readRead guide ↗Assembly calibration guide
Connector clearance and fit
Design pin-and-socket joints around printer, material, orientation, wall thickness, insertion access, and a test coupon cut from the real assembly.9 min readRead guide ↗3MF integrity
5 guidesFile format guide
3MF vs STL
Compare 3MF and STL for units, color, materials, components, transforms, metadata, compatibility, and safe editing before 3D printing.10 min readRead guide ↗3MF troubleshooting guide
3MF colors after editing
Find out why 3MF colors disappear after a cut, repair, split, or export. Use a semantic round-trip check before repainting the model.10 min readRead guide ↗File format explainer
What is a 3MF file
A 3MF file is a ZIP package that stores a 3D model with units, colors, materials, and print data. See what is inside, which apps open it, and when to use it.7 min readRead guide ↗3MF color explainer
How 3MF stores color
3MF can store color as an object color, a per-triangle property, or a texture. See how each works, why tools lose them, and which one your file uses.8 min readRead guide ↗3MF checking guide
How to check a 3MF file
Check a 3MF file for structure, units, objects, colors, and broken references before you slice, using an archive tool and a free browser inspector.7 min readRead guide ↗Resin preparation
2 guidesResin safety guide
Hollow an STL for resin
Plan hollow resin geometry around each cavity, wall thickness, drainage, ventilation, orientation, washing, and post-cure access.11 min readRead guide ↗Resin cavity guide