Simple Extruder Drive Block only 3 parts!!
Description
Update 7/27:Enlarged Holes For Push Fittings On Extruder Body And Holes On The Arm For Bowden Tube If Used. Enlarged Volume Above Filament/Push Fittings For Extra Strength. Enlarged "Footprint" Around Foot/Cleat Mounting Holes On The Body. Update: Created Space For Mk8 Grub Screw, Added Support For Overhand On Drive Block. Added Slightly More Space For Bearing Clearance. Added Indent On Both Sides Of Arm So Only A 20Mm M3 Bolt Is Required. Created Slight Spacing For 608 Bearing On Arm. While Building My 150% Wilson Ts Prusa I3, I'Ve Been Rather Unsatisfied With The Available Extruders. The Closest I'Ve Come To What I Prefer Is Richrap'S Extruder On A Custom Mount I Threw Together In Sketchup. Unfortunately The Effort Required To Change Filament Is More Than I Prefer. This Is A Direct Drive Extruder For Use With The Mk8 Hobbed Pully. My Requirements Are: 1. Simplicity - As Few Parts As Possible. No Monstrously Long M3 Bolts. 2. The Ability To Release Filament With 1 Hand. 3. The Ability To Mount This To 20Mm 8020 Extrusion 4. The Ability To Mount This In Both Left And Right Orientations. After A Few Days Work I Think I Have It. Bom: 1 X Mk8 Hobbed Pulley 3 X M3 X 6Mm Socket Head Bolts (Block Mount To Stepper) 1 X M3 X 20Mm Socket Head Bolt (Through Arm And Block Mount To Stepper) 3 X M3 Washer (In Between Arm Mount, Under 20Mm Bolt On Arm, In Between Spring And Nut) 3 X M3 Nut (1 In Tensioner, 2 Nuts Jammed Together Holding Washer In Place) 1 X (Really Small) Self Tapping Screw To Go Into Axle 1 X 608Zz Bearing - If You Have A Wades Extruder Around, You Have One. 1 X Spring Stl'S For Both Left And Right Facing Extruders Are Included. The Tensioner Arm And The Axle Will Work With Both. Fitment Is Good - Test Extrusion Working As Intended.
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