Mosaic Spool Holder V5

well this is my first attempt at cad (autocad inventor) so be kind this is still a work in progress lol
just got this mosaic a week ago and the lose filament is driving me crazy
made this mount to hold some new filament that came on 10 inch spools
currently holding spool with a bic pen lol
after i type this will make a tube to replace pen...
update made spool just sits in there so far works great