I used two of these to connect the https://www.printables.com/model/529130-op-1-stable-stand-decksaver-still-fitting stand to the OP1. Would recommend printing on the side (I've had two break when I printed them upright) The gcode I used on my Prusa Mini+ is attached too. Enjoy!

Model origin

The author marked this model as their own original creation.

M6 Hex Bolt (8mm for OP1 stand)