Printables

Printables, formerly Prusa Printers, is a relatively new repository from Prusa Research that is frequently regarded as a modern alternative to Thingiverse. Prusa Printers, like Thingiverse, only hosts free files that are optimized for 3D printing. It's a well-kept website with a strong emphasis on its community. The site's administrators organize regular contests, list important events in the 3D printing community, host groups for 3D printing enthusiasts to communicate outside of file comment sections, and a forum for non-group conversations. Furthermore, the Prusameter reward system, which can be exchanged for printer consumables, incentivizes uploading models and participating in design contests.

Prusa Printers is a little different in that it allows users to upload pre-sliced G-code to its website. However, it should be noted that this is a contentious feature. Some manufacturers have warned against using G-code from unknown sources because bad actors could severely damage your hardware or worse. This website hosts a large community with numerous communication channels, regular contests, and pre-sliced G-code for Prusa 3D printers. Tutorials and instructions detailing how to build each creation are featured on the project pages. Furthermore, the majority of the designers are willing to answer public questions.

Website: printables.com