Just a small cap for my fence, to use with pole-dimension 70mm x 70mm.
ZYYX 3D Printer
I've "rusted" my PLA caps. Therefor I've used XTC 3D and iron powder. Just powder them as long as the resin is still wet. Then sprinkle with ammonium chloride buffer solution, wait, paint if you want to, ready to go. How it works you can see here: https://www.youtube.com/watch?v=DVnkP8mu3Oc
3D-Printing since 2015, therefor I use ZYYX 3D Printers. My designs are made with SOLIDWORKS.