Ryobi USB power / minimalist power bank design

thingiverse

UPDATE: I cleaned up the parts and refined the fitting even further - it was a bit too snug of a fit for the board to slip into the enclosure, as well as for tucking the cables neatly along the sides. Now it should be more user-friendly, with fewer unnecessary parts protruding from the surfaces. I also enlarged the two screw holes slightly, since I didn't have any miniature screws on hand and you might not either. It holds together perfectly fine with just 2 screws. I aimed to create a Ryobi One Plus USB adapter in as compact a size as possible, so I decided to remix a USB buck converter case and a Ryobi power clip found here on thingiverse. All the other models I could find were too bulky for my taste, and I also wanted the casing itself to cover the power leads on the power clip, so I added simple covering parts there in addition to combining the two models and completing the shapes. I purchased the USB buck converter from three different sellers on ebay, hoping one of them would arrive quickly. This was the cheapest option available at 0.67eur a piece: https://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_id=114&ipn=icep&toolid=20004&campid=5338573571&mpre=https%3A%2F%2Fwww.ebay.com%2Fitm%2F6-24V-12V-24V-to-5V-3A-CAR-USB-Charger-Module-DC-Buck-step-down-Converter-CA%2F142329605539%3FssPageName%3DSTRK%253AMEBIDX%253AIT%26_trksid%3Dp2057872.m2749.l2649 The models could use a bit of cleaning, there are parts that stick out a little bit, but this is fully functional as such, as you can see I have built mine based on this model. I didn't have small enough screws though, so I used just two bigger ones, drilling the holes to 2mm before screwing them in. INSTRUCTIONS: - Print both parts with supports enabled - Wire it up using some electrical wire you have on hand, you can check the polarity on your ryobi batteries, but the polarity here matches that of the USB buck converter, so the solder pad for black is already on the correct side of the power clip, and likewise for red. - Screw the cap on with small screws, you can add a dab of clue on the end of the extensions that cover the wiring on the power clip