80/20 30mm extrusion slot cover for wiring. FRC

thingiverse

You build stuff with extrusions, featuring wires in the mix. Keeping things neat is a priority. There are files available for two different lengths: 100mm and 150mm, tailored to your printer's height specifications. Simply cut them to a convenient length when you're done. A single wall thickness will do just fine for this project. And if you're feeling adventurous, you can also try printing in transparent PLA – it makes the entire thing look more appealing with its refractive and reflective properties on display.