MJS.ART PenBrush

prusaprinters

I handcraft and sell a wood “PencilBrush”; think paintbrush, but with pencil lead instead of bristles and paint. You can check that out, here: https://pencilbrush.artI've been thinking about the same thing but with pen ink. Inspired by my newly acquired Prusa Mini+, I created this PenBrush.This is the third version of my PenBrush. It now includes 2.5mm hex keyed grub screws to precisely align the tips of each ink refill.This brush is designed around a specific pen ink: Uniball Signo UMR-1The UMR-1 is a popular refill so it's easy to search for and find, but if you use my Amazon affiliate link – https://go.mjs.art/umr-1-tp – I'll make a bit of money on each sale.I'm working on another version of this for the Uniball Signo UMR-10.I'm considering selling printed versions on my store that include the ink, but I'm making the 3MF and gcode available for free so you can print your own.NOTE: I chase the threads in the PenBrush body with a ¼-20 UNC tap to ensure the grub screws go in cleanly. I probably could've played with the face offset a bit to make it print-in-place, and maybe I still will for “v4”.Stay tuned.