Rhino 3D Tutorial: Fix Watertight Meshes & Naked Edges for 3D Printing | Ep.5

Learn how to fix watertight meshes in Rhino 3D and prepare your models for 3D printing step by step. In this beginner-friendly tutorial, Jonathan explains how to identify and repair common mesh problems like *naked edges, mesh holes, and non-manifold geometry* using Rhino’s built-in tools.

👉 Download the project files here to follow along:*
https://www.dropbox.com/scl/fo/5s4exw...

We’ll go over essential commands such as:

*ShowEdges* – visualize naked edges in your model.
*MatchMeshEdges* – automatically connect misaligned edges.
*FillMeshHoles* – repair missing geometry quickly.
*PatchSingleFace* – manually fix complex holes.

By the end of this lesson, you’ll understand how to ensure your models are closed, watertight, and 3D-printable. Whether you’re an architect, designer, or beginner learning Rhino, these techniques will help you avoid catastrophic errors when sending files to slicers or fabrication.

⏱️ Timestamps:
0:00 Intro – What are watertight meshes?
0:37 Naked edges explained
1:21 ShowEdges command
2:32 MatchMeshEdges command
3:50 Filling mesh holes automatically
4:55 Manual mesh repair techniques
5:59 Why architects must model solids
6:34 Final thoughts

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👉 Comment below if you’ve struggled with naked edges before.

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