A battery adapter if you want to power your AAA battery operated gadgets with a wall power adapter.

Print two copies of "AAA battery adapter for external power". One for plus and one for minus. Use a M3 screw to fasten the power lead to each adapter. Max thread length is 20mm.

Also added a AAA battery dummy if you need to fill the battery compartment for stability reasons.

Edit: now the M3 thread goes all the way through.

Creality

Ender 3

0.15mm

Print using Brim.