Repairing parts

Fix faults in a triangle mesh that make a part unsuitable or unusable for print preparation and toolpath generation

Detecting mesh faults

Netfabb provides a range of indicators to recognize repair-relevant properties as well as automated and manual tools to address them. For instance, parts that have very obvious errors have their display color swatch marked with a warning symbol in the project tree. A larger warning symbol is displayed in the bottom right corner of the display if any part is in such need of repair.

Repair availability

There are two approaches to repairing in Netfabb, manual and scripted, automated repair.

Manual repair	Add, modify, and remove individual triangles
	Configure and execute individual repair actions	Most repair actions can work on selected areas. Some actions are only available as script actions. There are actions that modify a triangle mesh in a way that isn't technically repair, like remeshing.
	Manage a part's shells	Assemble a part selectively from other parts by drag & drop in the project tree Delete individual shells
Automated repair	Execute scripts assembled from repair actions	Repair scripts are lists of configured actions that are executed in the order they are listed in. Scripts always work on the entire part. Script execution is available in several places in Netfabb, even outside repair itself: Immediately during loading a 3D file On one or more parts on a platform In repair

Like all mesh-modifying actions in Netfabb, repairing parts technically generates new parts. While executing a repair script during loading or on one or more parts on the platform replaces the original parts immediately, finishing repairs with Apply Repair provides you with a choice:

• Remove old part: Creates a new part while deleting the original part.
• Keep old part: Creates a new part and keeps the original part.
• Keep and compare: Creates a new part and keeps the original part. It also launches a mesh comparison on these two parts.

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