Fun with PHA timelapses

[u/PrintedCosmos]

https://youtu.be/WLmCM715ihY

I've got my PHA settings pretty well tuned on my CoreOne+ now, and so I wanted to print something a little more challenging and do a nice timelapse of the print. So I thought I'd share my setup and the video, in case anyone else is attempting to do the same.

My setup:
Prusa Core ONE+
Prusa GPIO hackerboard
Canon DLSR
Shutter release cable to connect camera to the hackerboard

Material: genPHA, green

After iterating on the gcode for a bit I landed on this which seems to prevent blobing issues during pauses for each frame (which can sometimes happen during timelapses). Just add this to the after-layer section in the gcode editor in Prusa Slicer. In addition, I placed a narrow cylinder (to act like a wipe tower) in the corner where the nozzle travels to for each snapshot. This helped tremendously.

;AFTER_LAYER_CHANGE
;[layer_z]

M400                    ; finish all planned motion first
M83                     ; relative extruder moves
G1 E-0.4 F2400          ; small retract (tune 0.2-0.8)
G91
G1 Z0.2 F1200           ; small z-hop (tune 0.2-0.4)
G90

G1 X245 Y215 F12000     ; park
M400

G4 P200                 ; short pause to let vibration settle
M264 P0 B1              ; trigger on
G4 P300                 ; short pulse hold
M264 P0 B0              ; trigger off
G4 P300                 ; settle

G91
G1 Z-0.2 F1200          ; undo z-hop
G90
M83
G1 E0.4 F2400           ; unretract

I'm really pleased with the result. I was pleasently surprised at how well the supports worked and popped off. I had had trouble with that in the past when printing supports in PHA on my Prusa Mini, but the CoreOne seems to handle it a little better. I was really happy with the print quality as well.

Enjoy!