The Coupler will help you run a short length of PTFE tube from iide the filament compartment through to the exterior and aloo you to print 3rd party filaments on large spools without having to leave the compartment door open. Add your 4mm diameter PTFE tube to this coupler and set to the filament compartment with you would like to guild the filament without having to leave the compartment door open, you have to make a hole for PTFE tube. 在Adventur3中,用于将第三方制的灯丝从外面拉入的导向部件。 安装方法 ①将特氟隆软管切成10cm左右