I can't handle foam... Touching it, or even others touching it around me, gives me the fingernails down blackboard feeling. This seems like it'll work... But maybe tpu or another flex print material would be a more useful version. But most likely, it'd need to be a different design to account for that.
Hey! I think this is the one I used: www.thingiverse.com/thing:4964686 We scaled it to 110% I think. 110 or 120% should be about perfect for paracord 550.