The best 3D Printing alternative to Rhinoceros is SketchUp. It's not free, so if you're looking for a free alternative, you could try Shapr3D. If that doesn't work for you, our users have ranked more than 50 alternatives to Rhinoceros, but unfortunately only two of them are 3D Printing Tools.
Rhinoceros alternatives are mainly 3D Modelers, but if you're looking for
3D Printing Tools or CAD Software you can filter on that. Other popular filters include
Free,
Open Source,
Linux and
iPad. You can also filter by region, for example
EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Rhinoceros.
Both are used for say interior/exterior design and both have v-ray render plugin (separate buy)