Printing on the Prusa i3 Mk3s
Safety
 | CHECK THAT ELECTRICAL TEST TAG IS CURRENT - CAUTION AROUND ELECTRICAL EQUIPMENT |
 | PARTS OF THIS EQUIPMENT GET HOT! - DO NOT TOUCH HOT END WHEN OPERATING |
 | THE MOVING PARTS OF THIS EQUIPMENT CAN CAUSE A CRUSH INJURY - DO NOT PLACE BODY PARTS IN MACHINE WHEN OPERATING |
 | THIS EQUIPMENT MAY CREATE HAZARDOUS FUMES CRUSH - ALWAYS OPERATE IN WELL VENTILATED AREA |
Starting Your 3D Print
| 1 | Collect the SD card fro the Fab Lab Supervisor and export a .gcode file to the Card from the PrusaSlicer app. |
| 2 |  Insert the SD card into the slot on the side of the LCD screen assembly |
| 3 |  Using the Control knob, navigate to and select your file on the SD card ( rotate to scroll, push to select)  The printer will automatically check the temperatures of the nozzle and the bed; printing will start when the desired temperature is reached - that can take several minutes. |
| 4 | Watch the first few printed layers to be sure filament has attached to the bed properly (5 to 10 minutes). After this you should check the progress of your print every 10 mins. Patrons are not to leave their print unsupervised. |
Failed Print Procedure
If the Print Starts to fail…
| 1 |  For a catastrophic failure press the Reset button. This will abort the job and force a full reset of the printer. |
| 2 |  Use the Control knob to select Pause Print |
| 3 | Chat to the Fab Lab Supervisor about why you think it failed |
Removing Your Print
Removing prints from the build plate is much easier because of the ability to remove and bend the build plate. Different thermal expansion of the steel sheet and plastics used in 3D printing also helps with detaching prints after the plate has cooled down.
When the printing is finished, let both nozzle and heatbed cool down before removing the printed object. Always handle the printed objects when the temperature of the bed and nozzle drop to room temperature. When the bed is hot, objects are very hard to remove. Remove the steel sheet from the printer and bend it slightly; prints should pop off.
If you experience any troubles removing the object (especially the small ones), you can use a flat tool like a spatula with rounded corners to prevent damage to the PEI . Slide the spatula under the corner of the object and gently push until the print pops off.
Removing the model from the PEI print surface by bending the steel sheet. If the prints still do not want to get loose or you need to bend the sheet too much (which you should not do), try to bend the sheet inwards .
