RapidChange Revo Support

Revo Hemera XS Summary

• Drive Type: dual drive with adjustable tension idler
• Max Printing Temperature: 300°C
• Nominal steps per mm (x16): 397
• Recommended current: 1.4A Peak (~0.99 RMS)
• Filament diameter: 1.75mm

Service Temperatures

Note, these are maximum ambient service temperatures of the components used and not a guaranteed operating temperature of the system

• Fan: 50°C
• Motor: 85°C
• Polymer bushing: 90°C
• Bearings: 100°C
• Acetal idler components: 120°C

Fan Specification (Direct)

• Width: 40mm
• Depth: 10mm
• Cable: 1000mm
• Bearings: 100°C
• Voltage: 12VDC and 24VDC
• Current: 0.08A (12V) and 0.04A (24V)
• RPMS: 7500±10% (12V) and 6900±10% (24V)
• Speed: 7000RPM
• Connector: Dupont 0.1”
• Startup voltage: 6 VDC (12V) and 12VDC (24V)Airflow: 6.8 CFM
• Static Pressure: 4.55 mmH20
• Noise level: 33.6 dBA
• Weight: 14g

Motor Specifications & Diagrams

• Motor mass: 160 g
• Motor wire length: 1000mm
• Phase number: 2 phases
• Rated voltage: 3.22 VDC
• Recommended Current: 1.40A Peak (~0.99A RMS)
• Resistance: 2.3Ω per phase
• Holding torque: 180mNm
• Detent torque: 10 mNm
• Rotate direction: ABĀB̅ CW
• Step angle: 1.8°
• Rotor inertia: 7 gcm²
• Rotor inertia: 24.3gcm²

Maintenance

• Do not remove the grease from the drive gears
• Use a brush or compressed air to dislodge filament debris from hobb teeth
• Avoid using wire brushes on the hobb teeth or gears.

Materials

• Heatsink: die cast aluminium (Direct)
• Extruder cover: MJF Nylon (Bowden)
• Gear/Hobb materials: stainless steel
• Fixings: steel
• Idler materials: Acetal
• Bearing elements: 2x shielded 623 bearings (drive shaft), Igus bushing.

Mounting Guidance

Hemera is mounted to a flat surface via the T-slots on the left or right sides of the motor. Typically Hemera is mounted onto the left side, as the air from the heatsink cooling fan exits on the right. If mounting on the right, ensure that sufficient space is left for airflow.

The screws must protrude 3mm±0.25mm from the mounting surface to go into the T-slots. The supplied M3×8 mounting screws are suitable for a nominal 5mm mounting plate thickness. Hemera must be mounted on a minimum of 2 mounting points, if using 2 mounting points, diagonally opposing points should be used, in order to ensure rigidity.

Exploded View

Revo DirectV6 DirectBowden

Revo Hemera XS Dimensions

Revo Hemera XS Upgrade Guides

There are no official upgrade guides for Roto available yet. However we have a selection of Beta mounts available on our printables:

Revo Hemera XS Assembly Guides

Revo Hemera XS Firmware

Warning

Revo Hemera XS isn't a drop in repalcement for any specific 3D printer; therefore firmware modification will be required for safe operation. 

These will vary depending on your chose hotside. Refer to the Revo hotside datasheets to confirm which temperature sensor and maximum temperature to configure.

Revo HotEnd PID Tuning

Revo Hemera XS Downloads

Hotside Options

Nozzle Options

Declaration of Conformity