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Explore Ragdoll Pro
Ragdoll Pro mounts pack strain wave gearing and modern control into a compact head designed for field and small observatory use. Choose 17 Pro or 20 Pro to match payload needs, and expect a mount that aims to trade bulk for a capable, transportable platform with included protective case and core accessories.
Compact strain wave gear mount
17 Pro and 20 Pro variants available
Includes Counterweight bar and Saddle Hub
±10 arc-second periodic error with PE test report included
Physical home and RA limit sensors
Both Ragdoll Pro variants use strain wave gear drives to deliver compact size, high torque and reduced backlash compared with many traditional mounts. A factory periodic error test report is included, with a reported periodic error of plus or minus 10 arc-seconds, which helps set realistic expectations for guiding and imaging workflows.
The mounts run OnStepX firmware and support common astronomy platforms such as NINA, ASIAIR and KStars. Multiple connection options are available: USB, Wi-Fi, Bluetooth, ST4 and the UMi Mount app, giving flexible ways to control and integrate the mount into your imaging setup.
Each Proxisky Ragdoll Pro ships with a hard case lined with EVA foam and basic cables and tools. The AstroGear-supplied versions include a counterweight bar and Saddle Hub instead of the original saddle. Physical home sensors, a secondary Dec home sensor, RA limit protection and RA braking aim to improve repeatability and safety for automated imaging.
The series is offered as Ragdoll 17 Pro and Ragdoll 20 Pro. The 17 Pro targets lighter to medium imaging rigs with a payload listed as 13 to 20 kg and a mount head weight of about 5.1 kg. The 20 Pro targets larger rigs with a payload listed as 20 to 30 kg and a mount head weight of about 5.5 kg.
Selected Proxisky Ragdoll Pro mount with Saddle Hub (the original saddle is not included), a hard case with EVA foam, a male-male DC 5.5-2.1 cable (1 m), a Type-B USB 2.0 cable, a hex screwdriver and a counterweight bar.
The mount runs OnStepX and supports common astronomy control platforms including NINA, ASIAIR and KStars. Connectivity options include USB, Wi-Fi and Bluetooth along with ST4 and the UMi Mount app.
A factory periodic error test report is supplied. The reported periodic error is ±10 arc-seconds. This figure helps set expectations for guiding, but actual imaging results will depend on payload, polar alignment and guiding setup.
| Specifications for | Model: 20 Pro |
| ModelSelected variant | 20 Pro |
| RA axisSelected variant | NEMA17 42 mm stepper motor, type-20 strain wave gear, belt-driven |
| Payload capacitySelected variant | 20-30 kg (without/with counterweight) |
| Mount head weightSelected variant | 5.5 kg |
| Mount type | German Equatorial / Alt-Az |
| Drive system | Strain wave gear |
| Control system | OnStepX |
| Dec axis | NEMA17 42 mm stepper motor, type-17 strain wave gear, belt-driven |
| Periodic error | ±10 arc-seconds, PE test report included |
| GoTo speed | 3.5°/s |
| Saddle | Vixen / Losmandy dual Saddle Hub |
| Power input | 12-15V DC / 2A |
| Electronic polar scope support | iPolar / PoleMaster |
| Home position | Physical home sensors + FRAM secondary Dec sensor |
| Wedge / altitude-azimuth adjustment | Backlash-free, self-locking |
| Power-loss braking | RA braking |
| Communication | USB, Bluetooth, Wi-Fi, ST4, UMi Mount app |
| Tripod connection | M10, 6 x M6, CF40 / TC40 compatible |
| Case | Hard case with EVA foam |
| Counterweight shaft thread | M12 |