No supports if rotated correctly. Made for Ender 3 Side Spool Holder by Elproducts here:https://www.thingiverse.com/thing:4888950?part=754d9fb5-b568-405d-953e-4d2842883f45 if you like this please hit the like button and check out my profile for more models, also if there is something else you would like me to make put it in the comments below