Description

A high precision, light weight, direct drive, planetary extruder system.

A design by Lorincz Robert.

Featuring:

• 7.5:1 gear ratio
• 12mm filament drive gears
• Up to 9.4kg filament pushing force
• Up to 600mm/s filament feeding acceleration
• 60mm/s retraction speed
• Delrin planetary gears
• Glass fiber filled Nylon housing and latch
• Machined aluminium spider shaft
• Bowden coupler fitting on top
• LDO-36STH20-0504AH 20mm high torque pancake stepper motor
• Operating temperature: up to ~120c
• Weight: 140 grams

Recommended firmware configuration:

• Steps: 690 steps/mm @ 16 micro-stepping
• Acceleration: 600 mm/s^2
• Maximum instantaneous speed change (jerk): 300 mm/min(RRF), 5 (Marlin)
• Maximum speed: 3600 mm/min
• Pressure advance: 0.02s
• Retraction: ~1.2mm
• Retraction speed: 60mm/s
• Motor current: 0.5A Peak or 0.35A RMS

Klipper specific:

• rotation_distance: 4.5714 # (200fsprx16ms)/700spmm
• microsteps: 16
• full_steps_per_rotation: 200 # 360/1.8sd
• run_current: 0.35
• hold_current: 0

Please see the Orbiter Extruder 1.5 Thingiverse page for further information and more detailed assembly instructions:

https://www.thingiverse.com/thing:4725897

Motor specifications and technical details