AstroFrog FG-17 High Precision Harmonic Equatorial Mount 20KG Load Support Mechanical Home Function

Introduction:
- FG-17 is a high-precision harmonic equatorial instrument, which adopts a CNC integrated shell and is equipped with a harmonic reducer drive system. It combines lightweight and heavy load characteristics, completely bidding farewell to the tedious balancing of traditional equatorial instruments. Equipped with mechanical home, dual limit protection, and laser assisted polar axis function, coupled with a stable latitude and longitude adjustment seat from 0-90 °, it provides precise and stable tracking experience for astronomical photography, making your deep space exploration twice as efficient.

Key Features:
- Small body, high load: Adopting an aviation grade 6061-T6 aluminum alloy integrated molding architecture, after finite element topology optimization design, it achieves a super load capacity of 20kg under a lightweight body of 6.4kg, perfectly balancing portability and stability.
- High precision harmonic reducer: Customized 17-100 harmonic reducer from a large factory, equipped with factory precision testing report, easy to achieve stable tracking.
- Physical electromagnetic brake, 42 high torque stepper motor: Adopting a high-precision 42 step stepper motor, coupled with a solid electromagnetic brake system for the right ascension axis, it instantly locks without backlash, ensuring that the equatorial instrument can still stably carry the equipment in the event of power failure or emergency stop, eliminating the risk of slip.
- Newly designed motherboard circuit: The circuit motherboard is professionally customized by top tier electronic manufacturers, and key components are selected from high-grade products to ensure reliability and long-term stability in extreme environments.
- Multi-function button: The shell is equipped with multifunctional buttons, supporting laser switch, button reset to zero position, power switch, etc., making operation more convenient.
- Multiple control methods: Supports multiple connection methods such as USB/WiFi/ST4, compatible with mainstream astronomical control software ASIAIR, N.I.N.A., etc., with flexible and convenient operation.
- Accurate star guidance: In the weightless test of an 8kg Newtonian reflector telescope in a gentle wind environment, the PHD2 guiding error remained stable in the range of 0.3"-0.6" for a long time at x=400 stroke, and the scatter plot showed a beautiful convergence without divergence.
- Thoughtful packaging: Customized sponge lined carrying case, supporting placement at any latitude from 0-90 degrees, making your outdoor transportation more worry free.

Specification:
- Model: FG-17
- Main structure: 6061 integrated CNC hollow stable structure
- Drive type: harmonic reducer + stepper motor
- Reducer model: customized double 17 harmonic reducer
- Motor: 42 high torque stepper motors
- Right ascension: 17-100 harmonic reducer
- Declination: 17-100 harmonic reducer
- Net weight: 6.4kg
- Load capacity: 13kg (without counterweight) - 20kg (with counterweight)
- Brake: right ascension axis solid electromagnetic brake
- Zeroing: electronic home + mechanical home
- Limit: 92-degree RA mechanical limit

Package Included:
- 1 x FG-17 Equatorial Mount
- 1 x 12V DC5521 Power Cable
- 1 x USB Type-C Data Cable
- 1 x Carrying Case
- 1 x User Manual