Pulling out almost all the tricks Meshmixer has to offer on this design. Took about 1 hour to design two crowns. Playing at 5x speed. Cerec Primescan Acquisition, no retraction cord.
This technique uses Boolean Difference, which in my opinion works, but tends to be fairly technique sensitive. Alternatively, see my video about emergence profile. • Meshmixer - Advanced C...
Sequence is approximately as such
1) Clean up mesh as needed
2) Draw Margins
3) Ditch the model
4) Separate the dies
5) Draw the secondary margin
6) Duplicate the dies for (i) a minimum thickness model and (ii) spacer model
7) In minimum thickness die- offset ~1.0-1.5mm and smooth as needed
8) In spacer die - offset ~0.11mm with ~0.5-1.0mm smooth transition
9) In spacer die - extrude die walls outwards 1-2mm (will help remove horizontal flash after boolean difference in step (12)
10) Design crowns as needed, check occlusion and interprox contacts
11) Taper the crown so that apically it is narrower than the dies
12) Boolean Difference the Crowns and the Spacer dies
13) Check the margins, collect facegroups into internal and external surfaces - With face group filter activated, smoothen external surfaces, and magnet tool the internal surfaces to the original die/ preparation as needed.
Негізгі бет Meshmixer - Crown Design (Boolean Difference Technique)
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