Graphics Reference
In-Depth Information
bottom of our model to make it flat. Reslice
off the bottom.
MeshMixer. However, sometimes
little parts will be impossible to slice
off. When this occurs, you can use
the lasso tool in MeshMixer to se-
lect and delete those stray bits of
mesh.
Repair the model and export as an STL.
Print Your Model
Your scan is now cleaned, repaired, and
ready to print! Open it in MakerWare, then
resize or rotate it if necessary and print it out.
See Figure 6-23 .
MeshMixer doesn't have any labeled con-
trols for panning and zooming around your
model—you need to hold down the key
combinations while dragging with your
mouse/trackpad to change your view (see
also http://www.meshmixer.com/help/
index.html ) :
Basic MeshMixer view controls include:
Alt + left-click: orbit camera around ob-
ject
Alt + right-click: zoom camera
Alt + Shift + left-click: pan camera
Fixing Holes, Non-Manifold
Areas, and Disconnected
Components
When you have a scan that is missing large
portions of the mesh, you first need to ad-
dress the holes, nonmanifold areas, and dis-
connected components. We will attack each
problem in turn.
Open MeshMixer and import your STL or OBJ
file ( Figure 6-24 ).
Figure 6-23. Final printed ReconstructMe scan
Repairing Relief Scans by
Capping
Sometimes you have a mesh of a building or
sculptural relief that is missing a side, top or
back and you need to create a closed model
by “capping” the object so you can print it.
Meshes generated from 123D Catch scans
often have these issues when you are only
able to scan the front part of a large object.
MeshMixer and netfabb can easily help you
fix this problem, as well as filling minor holes
or removing disconnected parts.
If your model has a lot of extra
“junk” in it, it is a good idea to slice
it off in netfabb before editing it in
 
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