Width for strap is approximately 27mm (1 inch according to creator)
I printed with supports, but not sure if it is needed. I used PETG for printing.
The buckles are quite sturdy, as I can use them on my dogs harness without them coming off or breaking.
The small cross-bar right at the back at the bottom of the buckle broke off for me (see picture below), but I did not need it. Overall a really nice design and model.
Originally from here:
https://cults3d.com/en/3d-model/gadget/cam-buckle
All rights to the original owner
The user re-uploaded this model. The user is not the original author of the model.