External battery clip for iPhone XS Max in Otterbox Defender and AideaZ wireless-charging battery

thingiverse

Update: 2019-11-23 Added a "main bracket 2"; it has a "cut" in it, using less plastic. ----- Update: 2019-11-17 Tweaked dimensions a bit; has a better fit. Modified the tips of the "arms"; shouldn't require modifying the original holster any longer. ------ Remix of https://www.thingiverse.com/thing:3155096, for an iPhone XS Max. Redesigned to print without supports. Also holds battery in the bracket tighter when phone is removed (wraps around it more). No matter what I tried, I could not get this exported out of Fusion 360 with the correct printing orientation (at least not as it loads into Slic3r). Since the bracket was designed in the hand-held orientation, the print-bed surface is 16.5º off-axis. In my case I needed to rotate it 106.5º in the slicer (90º + 16.5º) to get the correct flat surface "down". The thingiverse image shows in the same orientation it loads into Slic3r for me, so you'll most likely need to do the same rotation in your slicer; either +106.5º or -106.5º (or automatically force the bottom surface on the print bed if your slicer supports that). You will also need to flip the "battery locator" clip 180º so what's showing in the preview image as the top edge is on the print bed (in case that isn't obvious). This part keeps the battery positioned correctly on the back of the phone so the charging coil is in the middle of the iPhone (bracket's thumb-tab on the left, bracket's wrap-around clips on the right, battery's USB ports down, when looking at the phone). ~~In order to be able to snap the phone/battery/bracket combo into the Otterbox belt clip, you will need to remove some plastic from the belt clip that comes with the case to allow room for the "hooks" when snapped into the belt clip (see photo). I used a Dremel to do that.~~ For the hand-strap, I use a 12-inch velcro "cable tie" from Monoprice.