A project box for holding these common voltage step-down (buck) modules. LM2596 is an inexpensive standard module made by a number of manufacturers. Typically 3.0-40V input and 1.5-35V output, but exact specs depend on the module. Widely available on Amazon and elsewhere, they are approximately $2 each.
I believe XL6009 step-up/step-down (buck/boost) converters will also fit, but I don't have one to check.
I made two versions of the box with different sized cable exits: "standard gauge" 3.8x1.6mm, "heavy gauge" 3.8x4.6mm.
STEP file and Fusion 360 archive for your editing pleasure.
Example step-down (non-affiliate link):
https://www.amazon.com/Valefod-Efficiency-Voltage-Regulator-Converter/dp/B076H3XHXP/
Example step-up/step-down (non-affiliate link):
https://www.amazon.com/Adjustable-Converter-Automatic-Voltage-Regulator/dp/B07NTXSJHB/
2x M3 x 6 screws or glue are required for assembly, set the output voltage before assembly. (No supports required, use a screw driver to punch through the sacrificial membrane in the lid's screw holes.)
This is based on my universal project box:
https://www.thingiverse.com/thing:4801005
Check out my other projects:
https://www.thingiverse.com/zx82net/designs
| Step_down_convertor_project_box.f3d | 865.8KB | |
| Step_down_convertor_project_box.step | 444.9KB | |
| Step_down_convertor_project_box_heavy_gauge_Main_Body.stl | 394.6KB | |
| Step_down_convertor_project_box_standard_gauge_Main_Body.stl | 370.2KB | |
| Step_down_convertor_project_box__Lid_.stl | 155.4KB |
