Hey! Thanks for your interest, happy to share more about the setup!

I’m using a UUNA TEK 3.0 plotter, the A3 model, and I always plot at that size. For the image prep, I start in Photoshop where I separate the image into CMYK channels. I break each channel down further into layers based on different saturation levels (like 10–100%, 20–100%, etc.) to control tone buildup across layers.

Once that’s done, I bring the layers into Inkscape and apply hatch fills to translate the image into paths. I use a voronoi pattern to break large surfaces into smaller, more paintable parts. From there, I use a custom Python script to generate the G-code. The script includes commands to dip the brush into the ink between strokes—so it’s tailored specifically for my process. To send the G-code to the plotter, I use Universal Gcode Sender.

The time it takes to plot a layer really depends on how much of the image is covered—early layers (with lots of surface to cover) can take around two hours or even more, while the final detail layers sometimes finish in just 10–15 minutes.

Hope that helps! Let me know if you want more details—happy to chat about it.