SFT Direct Drive Extruder
Description
Concept For A Simple Adjustable Direct-Drive Extruder. A Ball Bearing Is Mounted Onto The Fourth Screw Hole Of The Nema17 With A Slightly Non-Concentric Lever That Enables Pressure Adjustment. Two M5 Nuts Can Be Inserted For Bowden-Tube Push-Fit Connectors. A 4X2Mm Ptfe Tube May Be Inserted To Guide The Filament Path. The Extension Ring For The Bearing May Be Printed With Flexible/Rubber Filament. The Left Part Has To Be Printed Twice. ;) An Additional Frame Can Be Used As Spacer Between The Stepper Motor And The Extruder And To Keep All Four Screws In Place. First Test Of Concept: Http://Www.Youtube.Com/Watch?V=Tji8Mbmc3Ug
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