I wanted to use my photography sift box umbrellas with my COLBOR CL60r lights and realised that there is not through holes on the tripod mount. Here is my simple Umbrealls attachment. I tested printing on my ender 3, and works beautifully. This requires the following hardware: 1x m4 bolt 12mm or longer
1x m4 nut - installed from under head base.

Thanks and Enjoy!