I made my own M.2 2230 to 2280 adapter, because I couldn't find any would be exactly as I wanted. Thin but holding properly. I printed it using: - Bambu lab A1 mini - PETG filament - 100% infill  - normal support type Supports are important because there are over hanged walls in the air. But you can easily scrape them out from the groves with something small and pointy: I'm attaching also .f3d file in case you have different tolerances on your printer or if you want to make different length of the adapter, like 2242 to 2280, etc.