Autodesk MeshMixer vs. Rhino 3D

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.

Incentivized

• Auto-repair function works fast, and if it does not completely cover all problem areas, manual fixes will work 99.5% of the time.
• Remeshing algorithm is fairly slow but does a wonderful job in creating meshes with homogeneous or adaptive triangulation.
• It contains a comprehensive set of tools to optimize and prepare STL files for 3D printing, such as hollowing and support generation.

• 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• robust command prompts - rhino was originally made for industrial design and it flexes a lot of unique modeling commands that put it up there with SolidWorks

Incentivized

• 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.

• Rhino has very limited sheet layout tools.
• Grasshopper could be better integrated into the main interface.
• Lack of backwards file compatibility can be frustrating.

Incentivized

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.

Incentivized

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

Incentivized

• It speeds up projects by streamlining the CAD-to-3D-printing workflow
• As an advanced user, I have written a few tutorials about it as well

• Right away Rhino3D is useful for simple and accurate 3D model import, repair and export all in a variety of formats.
• Rhino3D is easy to use and learn. The time to productivity is very short with this modeling tool.
• The price is low for the value received, a great investment.

Incentivized