Download Free 3D Model PCB Etching with 3D Printer Agitatior 3D Print Model

Summary
I made Tech2C’s Pen holder https://www.thingiverse.com/thing:2459624
I used it on my Milling machine to apply sharpie ink as an etch resist.
Then I used my 3D printer to heat and agitate the Ferric Chloride solution with the pcb in it.
GCODE
g1 y0 f4000
g1 y50
g1 y0 f200
g1 y50
make many copies of this. Takes about 15 seconds to execute.
You can see the sample pcb traces that I produced using this technique. I would increase the overlap of the sharpie lines and print twice to ensure a good resist. the thin lines were just one layer of sharpie. they worked but got a little undercut.
I will add a video later showing the etching setup.
I found that setting my bed temp to 100C kept the Ferric Chloride solution below the recommended 55C maximum with my plastic tray which is pretty thick.
If anyone has a great way to get pcb gerbers into Fusion 360, please message me or comment on this thing