Product Details ＋

WarpAstron WarpDrive WD-20 Harmonic Drive Mount

Name: WarpAstron WarpDrive WD-20 Harmonic Drive Mount (WD-20)
SKU: 752613

WD-20 is a High-Load harmonic drive mount based on Servo Direct Drive. It provides standard load capacity up to 50NM without using a counterweight. Most heavy equipments like 130APO, 150APO or C11 can be easily handled by it with ideal guiding performance.

New designed main body with high power density servo motor, significantly boosting load capacity while keeping its weight only 5.4kg.

Both axises have home sensor, which makes astrography more convenient for remote control/observatory.

Servo Direct Drive

Servo motor direct driving stain wave reducer, taking advantage of fast response and precise positioning, every mount provides constantly high precision guiding at the same level.

Easy partner

Only weighted 5.4kg supporting both Losmandy & Vixen dovetail, even lighter than most of harmonic mount using Type 17 reducer.

50NM High Load Capacity

Load up to 22kg without CW @25cm from RA axis.

High precision encoder

Ensure high precision positioning for servo motor, far exceeding any stepper.

GPS

GPS/Beidou positioning module inside, for automatic positioning which easily sync time/location to NINA etc. for outdoor operation.

CNC

Mainbody integrally-formed by 5 axises CNC to ensure high strength. Deep Sky Grey/Carbon Black anodization

Bottom Plate Drawing

Technical Specifications

Mount Type: Equatorial/Altazimuth

Reduction Gear: RA: 20 Strain Wave Drive / DEC: 17 Strain Wave Reducer

Drive: Direct-drive motor with SWR

Motor: BLDC Servo Motor

Weight: 5.4kg/11.9lb

Load Capacity¹: 50Nm (Standard) / 60Nm (Max allowed)

22kg/44lb (without counterweights)

30kg/66lb (with counterweights)

Material: AL6061, Stainless Steel, Brass, ABS

Brake: RA axis

Adjustment Range: ALT 0~90°, AZ /- 8°

Time/Location: Built-in GPS

Dovetail: Losmandy/Vixen

System: OnStep

Protocol: ASCOM/INDI/LX200/INDIGO

PC Connection: USB Type-C³

Guide Connection: USB Type-C (ST4)⁴

Wireless: WIFI (Standard), BLE (Optional)

Power: 12V 5A 5.5x2.1/ 12.5mm DC

Environment: -20°C ~ 4° C

Counterweight Shaft: M12 Shaft (1.75mm Pitch)

Max Slew Rate: 2.8°/s

Operating Temp: -25°C ~ 50°C

Home Control²: 2-axis Home Sensors

Notes:

Standard: Recommend for better performance; Max Allowed: Load can be moved by mount; User should also consider the tripod stability and center of gravity to use counterweights properly.
WD-17 can return to home position relying on coordinates memorized in FRAM Chip which can save data when powered off.
Mounts support both USB Type-C to C and USB Type-C to A cables.
ST4 port used for hand controller connection, and ST-4 guide which require an optional converter for connecting with RJ-12 port.