You might not think to use the word “rigid” to describe most 3D-printer filaments, but most plastic filaments are actually pretty stiff over a short length, stiff enough to be pushed into an extruder.
The Creality Ender-3 Max Neo is a great starter 3D printer for those who want to produce much bigger plastic creations than you'd normally get on an entry-level printer. After quite a few years and ...