1. Sign into 3DPrinterOS at https://signon.stjohns.edu as shown in the “Signing into 3DPrinterOS” section.
  2. In the FILES tab, select the ADD FILES button in the top right of the window (arrow 1 below).
  3. A new dialog box will appear; click CHOOSE FILE or Drag a ‘.stl’ file into the hashed area (arrow 2 below).
    3DPrinterOS File Upload dialog asking to have a file dragged into upload or to select it from your computer for upload.
  4. Your files should now process and show up within the FILES bin in 3DPrinterOS.
  5. Click the grey LAYOUT button to open it in the web-based STL Editor.
    1. In the Editor, you can Move (1), Rotate (2), and Scale (3) your part by selecting those options and using the handles to make changes to your part.
    2. Make sure the part is fully positioned within the print volume outlined by the orange box.

      3DPrinterOS STL Layout editor window. A (1) is located under the Move button. A (2) is under the Rotate button. A (3) is under the Scale button. A blue arrow points to the Slice Button
  6. Once satisfied with any changes, select the Slice button (blue arrow).
  7. Your file will now be moved to Projects and changes to that project can be tracked here.
  8. The Slicer will automatically open the best slicer based on printer availability and present you with some basic settings. It's best to leave them as is, but more experienced users can tweak their settings to their liking.
    1. Expert users in courses utilizing 3D Printing may be given additional slicing controls as dictated by their courses.
      3DPrinterOS Cloud Slicer dialog with a red arrow pointing at the Slice & Toolpath preview button.
  9. When you are happy with your settings click the SLICE AND TOOLPATH PREVIEW button
  10. The slicer will close, and the cloud slicer will process your file then open the TOOLPATH VIEWER to show you how your part will look on the printer.
    1. You can use the height range slider to browse through your print layer by layer (arrow 1 below).  
    2. You can also see the estimated filament usage and time to print your file in the lower right corner of the TOOLPATH VIEWER window (arrow 2 below).
      3DPrinterOS Toolpath viewer dialog. A (1) points at the layers section. A (2) points at the info section. A red arrow points at the print button.
  11. Click PRINT in the ribbon of the TOOLPATH VIEWER to send the sliced file to a print queue (red arrow). 
  12. In the SELECT A PRINTER window, you will see the option to queue to the type of printer you sliced for.
  13. Add in any additional notes if any apply at the bottom of the window and then select the green QUEUE button
    The 3DPrinterOS Queuing screen.
  14. You will be asked a few questions.
    1. What color do you want your print? (Required)
      1. Select one of the following color options. Options may change based on filament levels during the semester. If you do not require a specific color, choose ANY COLOR and your print will be placed on the next available printer.
    2. Is this an Academic Print? (Required)
      1. If yes, please scroll down and select the following print is an Academic print. If it is select YES from the drop-down and enter the course name in the text box. If it is not, select NO from the drop-down.
    3. Is this print for Staten Island? (Optional)
      1. If your main campus is the Staten Island Campus, you can have your print completed in Staten Island and can be picked up from the DaSilva computer lab. Select YES in the drop-down for this.
        3DPrinterOS Q&A screen asking for more information on your print.
  15. Click the green CONTINUE WITH QUEUE button to queue your job.


You will get a confirmation message and email stating that your print has been queued to the printers. If approved, it will be moved to a real printer for printing and you will be notified via Instant Message within 3DPrinterOS that your print has been started.


While your printer is running, in the PRINTERS tab of 3DPrinterOS, you can watch the camera feed for your print. When your print is complete, you will receive an email notification.


Please note, you will receive a notice once the print finished printing. This is an automated message. Please wait until you receive an email from our staff indicating you can pick up your print.