GPIO Pin placement dimension


I’m thinking of making an attachable PCB for some Opto isolation for my cnc build. Essentially I’m thinking of making a “shield, hat, bonnet” whatever you call it to plug into the odrive headers and screw in on using the 4 mounting holes (probably cutouts for the screw terminals as well).

Anyways from the mech-drawing (ODriveHardware/mech_dimensions.PNG at master · odriverobotics/ODriveHardware · GitHub) the starting position of the headers is not explicitly defined but I’m kind of able to guess that the top left header pin starts at about (x: 17.78, y:1.25 mm)? Is that correct? Top left corner being the origin.

Thank you!