Accessible XL4015 CC CV buck converter case

2025/10/17 v4.0 Update:

- Make the ridges on the cap smaller so it would close shut without bulging. ----------------------------------------

Remixed ExtremeExtruder's case from scratch based on his design.

- Lid with holes for adjusting current, voltage as well as openings for screwing input/ output wires - Make the case smaller because the original from ExtremeExtruder are perfect length-wise but have quite a lot of empty space with the width, at least with the board I have. - Added 4x2mm holes for fixing the board in place. Need 2mm screw which are quite rare so if you don't have them just skip it. - Add ridges to the cap so it won't pop out. - Enlarge trim-pot holes and merge them together for larger tolerance - Added label (might be a bit small, but was legible on my printer.)