To complete this print you need an M3 set screw and an M3 insert. If you can’t find a set screw you can cut the head off from a 10mm M3 screw and insert(screw) it into the rod.
I recommend it to use an insert nut because there will be less friction in the insert nut than the plastic. I simply heat the nut using my soldering iron and slide it into the hole.
Print Settings
Printer Brand:
Creality
Printer:
Ender 2
Rafts:
No
Supports:
Yes
Resolution:
0.2mm
Infill:
50% – 100%