5 model

Free

4040 extrusion screwable endcap (Creality CR-6 SE)

Thingiverse

Free

4040 V-Slot endcap

Thingiverse

Free

4040 Extrusion endcap for Ender3 v2 (right side)

Thingiverse

Free

4040 Endcap T-SLOT 4040 B-Type (EU)

Thingiverse

Free

Ender3 (and others) 4040 extrusion endcap using original hardware from the printer

Thingiverse