Quick fixes and tidying up

The card Quick fixes in the right sidebar holds one-click commands. In the right-click menu they are called Remove empty parts, Deduplicate geometry, Fix degenerate parts, Delete empty groups and Recompute normals. Each command is one undo step.

Quick fixes

Empty parts

Deletes parts that contain no triangles. Files often carry a few of these.

Duplicates

Looks for parts whose mesh data is identical to another part’s. See the note below before you use it.

Degenerate

Removes parts whose triangles have no area, which can confuse the programs that draw them.

Floating…

Opens a panel that deletes the small loose pieces of a part that touch nothing. See Remove floating pieces.

Empty groups

Removes groups that have no parts left in them.

Normals

Works out the shading directions of every surface again. Use it when parts look oddly faceted or dark after large changes.

Each command reports what it did, or says that it found nothing.

Smart optimise starts every run with the first three commands, empty parts, degenerate parts and empty groups, under the name Empty parts. Its next step, Exact copies, removes what Duplicates removes. It runs none of the other commands on this page.

On the toolbar of the parts tree

Recentre

Moves the model so the centre of its bounding box sits at 0,0,0.

Bake transforms

Makes the moves, turns and scalings you did with the gizmo permanent in the mesh itself.

Centre pivot

Moves the pivot of each selected part to the centre of its bounding box. The part does not move on screen.

Flags

The card Filters & flags, under Find, marks suspicious parts without changing them:

Flag low-poly

Marks parts with fewer triangles than the slider says.

Flag slivers

Marks parts that are extremely long for their width, such as gaskets, wires and decals.

The status bar shows how many parts are flagged. Click that number to isolate them, look at them, and decide what to do.