Spool holder + guide from dryer - Ender 3 V3 SE

You may need to print : - with the filament in the dryer, directly connected to the printer - with the filament on the spool holder (maybe because the dryer is busy with another filament ?) I didn't want to choose between one or another option, or to have to change tool if I want to return to a spool holder … So I combined 2 models, and each source doesn't block the other. Then you can choose the filament source just before the print. Support only for the top of the filament guide. No need support for the spool holder. 3 Walls, 20% grid infill For the tube, use a PTFE tube 4mm external diameter / 3mm internal diameter (not a 2mm internal diameter) so the filament can move smoothly in it.