Moli Extruder

The most lightweight dual drive filament extruder based on BMG drive gears with 5:1 gear ratio.

Specs

• Outer dimensions (w/o motor) L×W×H: 37.2 × 28.2 × 48.7 (mm)
• Filament diameter: 1.75 mm
• Max feedrate: ~1200 mm/min
• Max flowrate: ~48 mm³/s
• Volume of all printed parts: ~6.14 cm³ (~63% less than Sailfin, ~55% less than Sherpa mini, ~52% less than HextrudORT and ~30% less than Sherpa micro extruder)
• Weight: <=25g (w/o motor). With LDO-36STH17-1004AHG: <=95g
• Mirrored version is also available

There are two versions for different types of BMG drive shaft available. They differ slightly, so check the measurements of your drive shaft and compare it with the CAD model

This is a BETA release. Files, instructions, and other stuff might change!

BOM

This extruder is designed to use Sherpa mini spare parts. Originally they are BMG dual drive extruder parts, but with one 3×20mm shaft instead of 3×32mm shaft. So you can buy original BMG dual drive spare parts and cut off the shaft by yourself.

• (1×) Motor LDO-36STH 17/20mm
• (1×) BMG internals Recommended from Trianglelabs Store or Mellow Store (or a bit cheaper, but not tested)
• (1×) M3×18mm(optimal) or M3×16 screw
• (2×) M3×12mm screw
• (2×) M3×6mm screw
• (1×) washer for M3 screw
• (1×) compession spring. Wire diameter 0.7mm, outer diameter 5mm, length 10mm

Print settings

Material: ABS or some high temp resistant filaments (like Extrudr Green-TEC PRO)
Nozzle: <=0.4mm
Walls: 3
Infil: 100%
Layer height: 0.1mm (optional 0.2mm first layer)