New 18500 Dual Charger with TP4056 enclosures.
Ventilated enclosures for TP 4056 and click closing cover.
I added several holes and trails for the cables, so you can chose how to install the cables.
Printed with CURA, 40 % infill, and 0.20 layer.
The infill can be whatever you prefer and you don´t need supports in an ENDER 3.
Maybe simplify3D can be a problem with the springs, as in the preview it seems only 2 layers for the spring, with CURA it makes 3 layers, at least that is what I´ve seen in the computer.
But try and let me know, I´m just learning, so any idea is welcome.
Link to 18500 file:
ADDED SAME .STL BUT 15MM LONGER FOR 18650
Link to 18650 file:
This one gives minor problems with slicer, but CURA slice it properly and you can print it.
Added 18650 .Stl V2.0, as the first one was not combined the 3 pieces because 3d builder just block when I tried to combine.
Now, they are combined bit some minor errors where done by 3dbuilder, anyway, with CURA 4.0 I think you can print any of them and they are going to be totally functional.
Link to 18650 file V2.0: