MeshMixer is a 3D design and modeling tool for 3D printing or scanning, supported by Autodesk (acquired 2011). While not discontinued, the product will not receive updates and Autodesk states they intend to include all functionality in updates of Fusion 360.
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Rhino
Score 9.1 out of 10
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Robert McNeel and Associates headquartered in Seattle offers Rhinoceros 3D (or Rhino 3D), a 3D modeling and design application. Rhino can create, edit, analyze, document, render, animate, and translate NURBS curves, surfaces and solids, subdivision geometry (SubD), point clouds, and polygon meshes.
Autodesk MeshMixer is best for repairing STL files and basic modifications toward 3D printing. It is excellent for hollowing out models and adding escape holes for SLA printing or lost-wax casting. Its CSG (Boolean) functions to combine different meshes are good too and seldom cause the program to crash. There is even an integrated algorithm to optimize the layout of multiple files on a print bed in case of small-batch production. Autodesk MeshMixer's sculpting tools are there yet limited and there are a few better alternatives. Best of all, it is completely free.
One of the main highlights of Rhino is the built-in visual programming system "Grasshopper". It is widely used for parametric architectural design, by a variety of world-class architectural offices. It is also very popular within architectural schools and universities. Its usefulness has increased a lot by having add-ins, plug-ins, scripts, and integrations with Revit and ARCHICAD for BIM workflows.
Parametric Modeling - Grasshopper allows for easy/rapid iterative process
White box renders display - looks great as a quick diagram export with no post-production required.
robust command prompts - rhino was originally made for industrial design and it flexes a lot of unique modeling commands that put it up there with SolidWorks
The remeshing tool needs to be faster, as in some cases it takes up to a day of waiting time.
The sculpting tools need the addition of a proper brush for creating sharp creases and ridges.
The standard shape library is rather limited. It would be nice to have this connected to online repositories such as Thingiverse, MyMiniFactory, or Cults3D.
A majority of the support for Rhinoceros 3D does not come from the company itself, but from online forums and boards where other Rhinoceros 3D users outline their issues and solutions. The Rhinoceros 3D website does not offer much in-depth support and just outlines general how to's. At the same time, online forums allow for more specific issues to be addressed and solved by the Rhinoceros 3D community.
Using Blender for STL file preparation is like swatting a mosquito with a wrecking ball, plus its boolean functionalities can be glitchy. ZBrushCoreMini proved too limiting as a sculpting tool, but so did Autodesk MeshMixer, so I am sticking to Sculptris. Materialise Magics and Netfabb are somewhat better at STL file repair and offer more advanced functionalities. But Magics does not remesh as well and Autodesk MeshMixer is far more compact and faster than Netfabb, so remains my weapon of choice.
It's hard to compare Rhino to other modeling software as Rhino is in a niche of its own. No other software (to my knowledge) is as customizable/programmable and has such a large community and such a large amount of free, open-source addons. Rhino (and Grasshopper) can be intimidating at first but once you get familiar with it and grow your toolbox with your own scripts, so much time will be saved
