I picked up a Keks light meter that comes with three cold shoe width options. I also have another camera that I am going to use it on whose cole shoe is metal, so that set the width of the cold shoe to the 18mm wide option.
This version opens up the dimensions of the Hasselblad connection a fraction, narrows the cold shoe connection and adds a stop at the front to eliminate having the light meter fall out the front.
Print this vertically with the cold shoe stop on your bed and you will need no supports. I used 20% infill but increased the perimeters to 3 so it's fairly stong for such a small piece.
The author remixed this model.
This version opens up the dimensions of the Hasselblad connection a fraction, narrows the cold shoe connection and adds a stop at the front to eliminate having the light meter fall out the front.