LDO Smart Orbiter V3.0

This brand-new all-in-one extruder design with many cool features we call Smart Orbiter v3.0  is one of my latest and finest extruder design made in collaboration with LDO Motors. The extrusion system concept and mechanical performances are similar to the Orbiter v2.0 but completely redesigned from scratch.

Summary of the coolest features:

• Pure plated copper heat-block with 72W ceramic heater and Bontech CHT nozzle for highest possible weight-to-flow ratio
• Heat-break performance optimized with finite elements analysis for extreme temperature gradient design to ensure clog-free printing experience
• Unique tensioning mechanism with elastic, predefined tension levels
• Frameless recessed 24V fan to reduce the extruder weight and outside dimension
• Large RNC coated dual drive gears with planetary gear reduction, similar to orbiter v2.0
• New precision main shaft design to reduce gear eccentricity
• Full aluminum housing with Delrin plastic gears for low noise and long lifetime
• The smart feature – integrated electronics
• Easy remove system of the secondary drive gear for easy cleaning and maintenance
• Double filament exit guide system for best TPU printing performance
• Overall weight is 175g

SO3 specifications summary:

• Drive type: 12mm dual drive extrusion system
• Weight: 175g including standard hotend
• Nominal steps / mm: 690 (16x micro stepping) / 1380 (32x micro stepping)
• Rotation distance: 4.69
• Extrusion force: 6.5Kg+
• Gear ratio: 7.5:1
• Max stepper current: 0.85A RMS (1.2A peak), derating over 50°C ambient temperature.
• Min stepper current: 0.55A RMS (0.75A peak) for operation up to 70°C ambient temperature
• Heater temperature sensor type: ATC Semitec 104NT-4-R025H42G
• Extruder fan: 24V frameless fan with speed signal
• Maximum operating temperature: 90°C (with motor current de-rating down to 0.55A RMS)
• Filament sensing
• Filament unload
• Hotend lit
• Filament input lit – RGB LED WS2812B type
• Extruder temperature sensor: 100K NTC Generic 3950
• Smart features supply: 3.3V or 5V