Spacer for Ender3 extruder

thingiverse

This is a 2mm thick shim specially designed to fit into the extruder spring of the Ender3. If your printer doesn't feed the PLA right, then you might have to tension the spring a bit. That's possible with these shims. They don't slip out, and they're just thick enough to fit onto the stomps that normally keep the spring. I printed two and placed on each side of the spring. You can print one, two or maybe change the thickness using the scale in Cura.