Mechanism Plane Tray Table Mount - Outie/mount

This is a remix of: https://makerworld.com/en/models/2234608-mechanism-plane-tray-table-mount

I found that this design utilizes an “Innie” for mounting, which is also what the Steam Grip utilizes, thus they can't be directly connected. I wanted to be able to directly attach my Steamdeck (and you could any other type of Mechanism-compatible grip) to the plane table mount, and thus needed an “Outie” connector.

Props to @TheBigFurn for the idea!

I put everything on a single plate, designed to have the latch be printed in a different color if you so choose.

🔧 What’s Changed in This Remix

• Replaced the Mechanism “Innie”/"Grip" mount with an “Outie”/"Mount" latch
• Enables compatibility with Mechanism “Grips”
• Maintains the original tray table mounting functionality

📱 Compatibility

• Mechanism mounting system
• Phones and devices supported by Mechanism accessories

✈️ Use Case

Perfect for flights, travel, or anywhere tray tables are available—ideal for watching videos, gaming, or hands-free phone use.

Requires the following hardware: (Not including a BoM, as it's a trivial amount of components)

• M3 x 12mm Screw - 1x
• M3 x 16mm Screw - 1x
• M3 x 20mm Screw - 1x
• M3 Heat-Set Inserts - 3x (M3*5*5, or replace two with a single M3*10*5)
• M3 Nuts - 2x
• Springs (Pen spring, or roughly 0.3*4*20mm) - 2x

📌 Notes

• This is a remix and credit to @rfd99 for the base tray table mount and @TheBigFurn for the original mechanism “innie” mount
• Credit for the remix for mechanism compatibility: https://makerworld.com/en/models/2234608-mechanism-plane-tray-table-mount
• Credit for the original idea: https://makerworld.com/en/models/538686-support-free-phone-mount-for-airplane-tray-table
• Credit for the latch mechanism: https://getmechanism.com/pages/digital-files
• Only the mounting interface has been modified; core functionality remains the same.