This mount holds a Tobii EyeX Eye Gaze camera directly under the monitor and maintains its orientation.
Walk-through here: https://www.youtube.com/watch?v=lR-zV6_k1IM&feature=youtu.be
Mounting an eye gaze device correctly is critical for those who use it to control their computer and to communicate. One challenge is that the monitor sometimes must be rotated to match the user's orientation (in a bed, power chair, etc.). Many mounts for eye gaze cameras will fail when rotated, or will remain parallel to the ground (which doesn't work).
This mount uses a "Watch Band" linkage to allow the user to move the device while maintaining the critical orientations. The holes are 4mm in diameter, and a metric M4 x 70mm pan-head screw will work perfectly. You can follow our progress on this project at the ATMakers Facebook Group:
Here's a walk-through of it mounted.
This will be part of a larger Guide at the main ATMakers.org site and we will update this when it's ready.
Printing is pretty simple. Flat orientation w/supports for the screw holes is what I ended up with (we tried several with varying degrees of success - look at the pix). Whatever setup you have for flat parts w/holes will work.
We printed in PLA, but I intend to use PETG for the ones I'm sending to a user just to get the most strength. I will update when that's done.