Bowden Extruder with Filament Guide for Anet A6 A8 Nema 17 Extruder Motors

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I created this design to address the poor design of the original Anet Extruder, which puts excessive stress on the upper screw and motor mount. To alleviate this issue, I've modified the design so that the upper part is now secured by two guides, each attached to a 4mm brass tube that's fastened using three M3x25mm screws (M3 screws can be used instead, but there will be some play between the parts). This redesign also includes a filament guide for flexible materials and simplifies the process of changing filaments. The revised design eliminates any obstructions in the path of the filament as it moves from the extruder to the ptfa tube in bowden setups. Required components: 3 x M3x25mm screws 1 x M4x12 screw 2 x 4mm shims (optional) 1 x 4mm outer diameter, 25mm long brass tube (optional) 1 x spring from the original extruder 1 x fitting for the bowden ptfe tube with M6 thread and 4mm tube 1 x fitting for the upper part with 5mm thread (optional) The integrated hinge for the cover is secured using a piece of 1.75mm filament.