Where is Turtle: 2WD Drawings?

Hi, I'm making AR controlled robot with Realsense T265 and Turtle 2WD as open source project.

Like this:
https://twitter.com/akira_you/status/11 ... 4540207104
And the progress:
https://twitter.com/akira_you/status/11 ... 6718354432

I want to design 3D printed Realsense Camera holder and 3rd floor for AR marker.
But I can not found drawings of turtle's top plate.Where is it?
I want to know where is the holes and center line (and the tolerance).

I know ,just drilling holes with the actual item is another solution.
But I want to disseminate this robot to software engineers (Especialy VR/AR Engineer).
(In many case, Japanese software engineers don't have drill press.)

Thank you