4:1 Planetary Extruder

https://youtu.be/dIwERQjJ0wI
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https://www.patreon.com/dynagen/

4:1 Planetary Herringbone Gearbox
Gearset can be used without included extruder

Dual lever arm Extruder - only 11mm thick
Suitable for flexible filaments & easy loading
*Amplifies spring pressure*
Standard/Mk8 aluminium lever style extruders (supplied with most things) are around 1.6x
Rough calcs on this design is around 7x spring pressure. Doesn't deform filament as pressure is exerted on both gear and support bearing, with moving filament position preventing the filament being bent into the drive gear

Herringbone gears in a planetary gearbox output 4:1 ratio
Sun:14T Planet:14T Ring:42T
Input = Sun
Output = Planetary Carrier


Parts Required:
*Gearbox*
1 @ ID8mm Filament Drive Gear
2 @ MR105 bearings
Choose either
1 @ 608 / 688 / MR128 Bearing (print suited bracket included. MR12