Once you are at the Astroprint dashboard, click the Printer Profiles icon.
On the Printer Profiles page, click the + New Printer Profile button.
On the popup window, select New Matter as the manufacturer, and then MOD-t as the printer model before clicking the Add to my printers button.
Now go back to the dashboard and select the Material Profiles button.
On the Material Profiles page, click the +Add Material button.
On the popup window, select Create Custom Material from the dropdown menu. On the following page, name the material New Matter Filament, set the filament diameter to 1.75mm, set the filament density to PLA - 1.25g/cm3, and set the extruder temperature to 210 degrees. Now hit the Create button to add this custom filament.
The site is now ready to create your models.
Once you are at the Astroprint dashboard, click the Design Uploader too icon, browse to and select the .STL file that you have exported from TinkerCAD.
You will be redirected to a new page where the printer should be set to MOD-t and the material should be set to New Matter Filament. On this page, select the print quality that you would like (keep in mind that better quality takes longer to print), and click the grey Slice button.
You are now redirected to your Files page, and you can see at the top your design will be listed under the Active Slices header. All the way to the right, click the download icon to download the converted .GCODE file.
Launch the MOD-t Printer Tool on your computer now. At the main window, select Print GCODE File.
Browse to the .GCODE file that you just downloaded from Astroprint, select Open, and the file will be sent to your MOD-t printer.
Just hit the blinking button on the front of your MOD-t printer to begin the calibration / printing process.