Use this new version:https://www.youmagine.com/designs/faberdashery-spool-erIt's a design to try to reuse the empty plastic spools from Formfutura or Colorfab.Print x3 for Colorfabb and clip them on the holes it has.Print x4 for Formfutura for the x4 holes it has.Use the circle to 'clamp' the hangs and make it more steady. Glue or just clamp it.The circle might not work well for colorfabb since I had no time yet to measure the angles for it, but the clamps work (that I did test).