Virgin Pulse GoZone Pedometer battery cover.

thingiverse

As in the description, it's the easy-to-lose battery cover to the HealthMiles' Gozone pedometer. Ah, what the heck; included the version with the coin slot so you can tighten the cover with a quarter (HealthMiles3) along with the thumb-tighten only version (HealthMiles2). New version: HealthMiles4. I raised the center inside a little to match the original battery cover more accurately; I finally borrowed one and measured it. It fits like a glove, and I have had one in place for over half a year now. I have one more idea for improvement: add "Open" and "Closed" arrows to line up with the arrow on the pedometer body. If this helps you, please "Like." :-) Instructions Print it solid. I think you can print it with raft; I haven't tried yet. You do need good adhesion, as curling will ruin it. The overhang is small, but you might still get a string or two. I gave it 4 layers and 100% fill, printed in PLA. You can tell by the first photo that it stuck a bit to my blue tape; I may have to re-level my plate. I have printed the V.4 on Kapton, and it comes out nice and shiny, looking like something fresh from the factory. Bed alignment is crucial here.