Multi-type filament spool holder system

Version 1 of the Multi-type filament spool holder system. How to use: You can print as many spool holders as you need. Use PLA. You need one pair of Pi Clips to connect two holders together.If you want to have a cluster of 5 holders, print two of the two spool holders, and one of the one spool holders and 6 clips. Be careful that you orient the holders correctly. There is a front and a back. I didn't label them, (I will next version), but you can tell by looking at the curved side. The top hexagons are slightly different distances from the curve. I call the skinny ones the Front. When you put two holders together, if the hexagons don't line up, then just flip one of them. Align the Pi clip to the flat sides of the hexagon. Squeeze the prongs a little to get them through the hexagon, and then push through until the prongs click on the opposite side. If you need to remove them, squeeze the prongs and push them back through the hole. I have done some testing, and using regular PLA