You can 3D print from Tinkercad pretty easily in a couple different ways.
1. If you have a printer at home or at a local makerspace, just download the STL file from either your dashboard by clicking the model thumbnail or from within the editor. Just click Export, then choose the STL filetype. STL is the standard file for most printers. Then you can import that STL into your printer's slicing application to create the Gcode your printer understands to make the 3D print.
2. You can also order a print from one of our fantastic printer partners from within the 3D editor. To see your options, click "Export", then click the 3D Print tab to see the options. You can set the print settings on the print partner's website for your Tinkercad design.