Beautiful Timelapses on Prusa MK4 - DSLR Camera Trigger Holder + Poker (Remix)

I remixed Cube3dWorld's remote trigger holder for the Pixel remote (purchased from Amazon) to line up correctly on the MK4. I also created a new remote poker using Prusa's official Back Cover R3 for the MK4's Nextruder.

NOTE: I'm not a good 3D modeler - this is a solid 3/5 stars if you ask me haha. I only use TinkerCad, which has many limitations compared to Fusion 360. As a result, you'll noticed imperfections in the model, places that could be smoothed out and improved to use less filament, to not require supports, etc. I encourage anyone to take this and recreate it properly in Fusion 360! 

All that said, I can also confirm this build is working beautifully for me. :)

PRINT SETTINGS

• 0.25mm Structural 
• WITH Supports (I recommend Organic Supports, at least 10 overhang threshold).
• PLA (or PETG for longer lasting parts)
• IMPORTANT: Don't forget to add the little rubberized pad to the poker! And see the note at the end of the description! (info below)

I'll copy/paste Cube3dWorld's description below, with some modifications:

-----

Step 1: Equipment

IMPORTANT: Remote Triggering Mechanism is compatible with Pixel Wireless Remote Control RW. 

1. Pixel Wireless Remote Control RW on Amazon (get correct model for your DSLR).
2. DSLR Camera
3. Stable Tripod
4. Lights [Optional]
5. Original Prusa MK4
6. Rubberized pad for tip of poker (something like these)

Step 2: Remote Triggering Mechanism

• Print Remote Holder and Poker. 
• Attach Remote Holder to the left side of the MK4 near the X-axis motor using two M3x30 screws (Note: you'll need to remove and replace (with M3x30) the existing M3 screw for the upper right hole). 
• Slide off the Nextruder Back/Top Cover (save it for later), and then slide in the modified cover with the Remote Poker (no screws needed).
• Add rubberized pad to tip of poker (this is important as the GCode is exact and you don't want too little or too much pressure on the remote).

Step 3: Editing G-Code

• Switch to “Expert” mode in PrusaSlicer. Go to “Printer Settings” and select “Custom G-code”
• Copy and paste G-Code below into “After layer change G-code” (replace all existing code there). It should look exactly as below. 

CAUTION: This code is different from Cube3dWorld's, as my Poker length is different. Make sure to TEST the code before doing your first timelapse to make sure the X values are accurate so that the poker presses the button with proper pressure.

;AFTER_LAYER_CHANGE
G1 F9000 X15 Y210 ; Move away from the print
G1 F1000 X5 ; Press trigger
G4 P500 ; Wait for 500ms
G1 F9000 X15 ; Release trigger
;Layer

Step 4: Printing

*****VERY IMPORTANT*****

• Wait to slide the Pixel Wireless Remote Control RW into the Remote Holder until AFTER the MK4 starts to print the first layer. The printer's calibrations at the beginning of printing will ram the poker into the remote way too hard if it's already in the holder. Calibrations will be effected, the trigger won't work, and it is likely bad for your printer!
• OPTIONAL: if you don't want to wait for the first layer to start printing to insert your remote, you can insert the remote immediately after the printer begins bed-leveling, if you also go into the “Start G-code" section (under “Custom G-code”) and replace the following code:
  ; prepare for purge
M104 S{first_layer_temperature[0]}
G0 X0 Y-4 Z15 F4800 ; move away and ready for the purge
M109 S{first_layer_temperature[0]}
  With this (changed X0 to X15):
  ; prepare for purge
M104 S{first_layer_temperature[0]}
G0 X15 Y-4 Z15 F4800 ; move away and ready for the purge
M109 S{first_layer_temperature[0]}
   
• Make sure to plug-in your Pixel remote receiver and confirm working with your DSLR.

Step 5: Offload your images from your DSLR and create your timelapse using any video editing software.

Step 6: Remove the remote from the holder after printing so you don't forget about it and have it get rammed on your next print! 

Good luck have fun!

Modified remote holder to accommodate MK4. Used Prusa's official Back Cover R3 for the MK4's Nextruder to create a new poker. Modified GCode to accommodate parts.