3D-printable holder and cutting kit to replace ALPS plotter pens, which are becoming rare and expensive. These allow using cheap Bic 4-colors ball-pens instead. For use in MCP-40 (ORIC, Sega/Yeno…) and other similar printers.

It seems some people already tried previously, but the only attempt I found was not functionnal. So I designed a complete one, and after several iterations we should soon have a usable alternative to overpriced New Old Stock pens.

Designed in OpenSCAD.

License isn't chosen yet.

The user manual is available in English (PDF), French (PDF).

TODO:

Since the required precision is similar to that of regular 3D printers and may need several tries, you may want to order calibrated pieces instead.

TODO: publish them

• alps_plotter_pen.scad: The pen holder itself, where the ink tube is fitted.
• alps_plotter_pen_cutting_jig.scad: A small tool to help with cutting the ink tube to the exact length and verify the assembly size.

• test with SLA printing
• choose licence
• publish CAD files proper here
• publish on Thingiverse