This simple adapter lets you mount your action cam vertically – great for anyone filming in portrait format (e.g. for Reels or TikTok), without needing cages, rotating arms or weird angles.

🔧 Fits DJI Osmo Action and GoPro
📏 Available sizes: 34, 38, 42 mm
👉 To find the right one: measure from the GoPro-style mount to the short side of your camera body, and add a bit of clearance. The original Osmo Action fits well with 34 mm.

The mount uses a standard GoPro-style connector on the side and holds the camera firmly upright.
An M5 nut slides into the slot on the back and is secured with a small printed cover piece – no glue, no screws. The fit is intentionally tight, so you'll need a bit of pressure to get it in – but once it’s in place, it holds rock solid.

This version is printed in PLA, which turned out to be surprisingly strong and reliable in testing. PETG could be an option if you plan to use it in high heat, but PLA has held up very well so far.

Ideal for minimal setups – head straps, backpack mounts or anywhere you want a clean vertical shot without extra gear.