Mr. Plow: automating 3d printing using JG Aurora A5

see it in action: https://www.youtube.com/watch?v=y09F-JLID-o

I'm trying to support masksfordocs (https://twitter.com/MasksForDocs), but only printing these 3dverkstan visors just 1, 2, or 3 at a time means there is lots of printer downtime while sleeping, napping, and 2nd nap. I tried stacking, but I couldn't maintain reasonable print quality which meant more post-processing in addition to just separating them. So, I used inspiration from Make Anything's YouTube channel to bump prints off between jobs, so I never have to touch the shields. Now, the only downtime (minus a few minutes for cooldown) is when the spool runs out of filament...

I used 3 of the included stl file and snapped them on the front rail of my JG Aurora A5, but you may be able to get by with less or may need more. Placement is key if you only have a couple, but if you have a bunch of these, placement shouldn't matter much...

The gcode I used between prints is below (I just used this as my end gcode, then copy and pasted the whole thing for 2, 5, 10, 50 prints, however many you want). Depending on your printer and setup, you will likely have to adjust this to suit your needs. I also have the bed starting to cool down with 2 layers to go (using prusaslicer 2.2 added in a gcode line "M140 S50" to start cooling the bed down before the print was done).

;cool down and bump
M104 S0 ; turn off extruder
M140 S0 ; turn off bed
G92 E0 ; reset extrusion distance
G91 ;relative positioning
G0 E-2 F3000 ; retract mm
G0 Z5 F1200 ; move up
M106 S0 ; turn off cooling fan

G90; absolute positioning
G1 X1 Y300 F3600; move to back of bed
G1 Z0.5; go to z=0.5
;G4 S300; wait 5min=300s
G4 S60; wait 1 min
G4 S60; wait 1 min
G4 S60; wait 1 min
G4 S60; wait 1 min
G4 S60; wait 1 min
G4 S60; wait 1 min
G4 S60; wait 1 min
G4 S60; wait 1 min
G4 S60; wait 1 min
G4 S60; wait 1 min
G1 Y85 F1800; move forward to bump off part
G1 Y300 F3600; move back to slide it into the bin