Filament Roller Spool guide Support for Delta 3D printer

This is a Filament Roller Support for Delta 3D printer. You should fix a Bearing(I.D 20mm hole) into your Filament Roll Case. (For fixing this, I used a common electrical-insulating black tape onto the bearing outer shell. good fix, But, In case of some Filament Roll Case, a slip occured, so made supporter between Filament and Bearing, we need 3 supporters at least)
After inserting this into the upper tringle corner of your delta type 3D printer, place your filamet roll with a 20mm Bearing.