Although the capacity is 30kg (maximum 50kg), the weight of the mount is only 8.5kg. It weighs about 35% compared to our worm gear mount and is less than 20% if we include the counterweight.

Counterweights not required up to 30kg. You can prevent accidents by the observer or guest from hitting the counterweight. Since there is no need for a weight bar, it is good for wide use of a narrow observation room.

The performance of the worm gear mount is sensitive to the balance, but the RST-300 is not. When two telescopes are mounted side by side, it is difficult to balance left and right, but using the RST-300 does not have such difficulties. You don’t need to rebalance if you change accessories like a camera or guide scope.

Instead of worm gears, a new type of reducer called strain wave gear (harmonic drive) is used. Almost no backlash and no maintenance is required. As it is widely used in industrial robots, it is very durable.

The RA axis has a built-in brake system. When the mount power is off, the brake is activated to prevent the “back drive” phenomenon. “Back drive” refers to the phenomenon that the shaft rotates in the direction of gravity when the power of the strain wave gear mount is turned off.

CNC machined aluminum alloy AL6061 is used for aircraft. That’s why it’s small, light and stiff. The beauty of the machined surface increases the collection value.

WiFi is built in. You can control the mount via the SkySafari app on your smartphone. Ascom Driver can be connected via WiFi as well as USB. GOTO and AutoGuide are now wireless.

GPS receiver is built in. The position and time of the observer can be entered accurately and conveniently.

There is a built-in home sensor to find the mechanical origin. This is useful for permanently using Star Alignment data. Build an ultra-small remote observatory with the RST-300 mount.

Features

  • Counterweights Not Required
  • Only 8.5kg weight
  • Capacity 30kg (max 50kg)
  • Strain Wave Gear (Harmonic Drive)
  • Built-in brake (RA Axis)
  • 5 years warranty

Included Items

  • RST-300 mount
  • Hand controller (Hubo-i SE)
  • Cable for hand controller
  • USB cable
  • Power cable (Cigarette Lighter Plug)
  • Power cable (5.5×2.1DC Jack)
  • AC-DC power adapter
  • Adapter for Polemaster
  • Soft case
  • 5mm Hex Wrench

Mechanical Specifications

Mount type Dual mount – German Equatorial, Alt-Azimuth
Gear Strain wave gear (Harmonic Drive)
Load Capacity 30kg(without counterweights), 50kg(with counterweights)
Recommend Telescope 12inch Reflector, 7inch Refractor
(without counterweights)
Weight 8.5kg
Volume 18.3 x 17.5 x 27.9 cm
Material Aluminum alloy AL6061, Steel, Brass
Surface coating Anodizing
Gear size(RA) Model No. 25 (Based on HDS)
Gear size(DEC) Model No. 25 (Based on HDS)
Motor Swiss made Maxon DC Servo Motor
Latitude range 0 to 90 degrees

Controller Specifications

Max Slew Rate 1,200x (5deg/sec) – 16V DC
1,000x (4deg/sec) – 12V DC
Input Power DC 12V ~ 16V
Power Consumption(Tracking, 12V) 0.4A
Power Consumption (Slew, 12V) 4.0A
PC Connection ASCOM Driver
GPS Built-in (Hand Controller)
WiFi Built-in (Hand Controller)
Home Sensor Built-in
Brake Built-in RA axis : To prevent back-driving
High voltage, reverse polarity input protection Built-in

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Optional Products

Rainbow Astro RST-300 Weightless Mount

SKU: RBA-RST-300

$16,485.00

Available on back-order

✅ Fast Shipping & Tracking
✅ Stocked in Melbourne, Australia
✅ Expert Advice
✅ Lifetime Technical Support

    Need Expert Advice?

    Visual Astronomy, Astrophotography, Microscopy and Macro Photography can be a little complicated sometimes as there are a lot of options. If you'd like to check something before you purchase just let us know and we'd be happy to help!

    Enquire now or call us (03) 9042 2293

    Rainbow Astro RST-300 Weightless Mount

    SKU: RBA-RST-300

    $16,485.00

    Available on back-order

    Although the capacity is 30kg (maximum 50kg), the weight of the mount is only 8.5kg. It weighs about 35% compared to our worm gear mount and is less than 20% if we include the counterweight.

    Counterweights not required up to 30kg. You can prevent accidents by the observer or guest from hitting the counterweight. Since there is no need for a weight bar, it is good for wide use of a narrow observation room.

    The performance of the worm gear mount is sensitive to the balance, but the RST-300 is not. When two telescopes are mounted side by side, it is difficult to balance left and right, but using the RST-300 does not have such difficulties. You don’t need to rebalance if you change accessories like a camera or guide scope.

    Instead of worm gears, a new type of reducer called strain wave gear (harmonic drive) is used. Almost no backlash and no maintenance is required. As it is widely used in industrial robots, it is very durable.

    The RA axis has a built-in brake system. When the mount power is off, the brake is activated to prevent the “back drive” phenomenon. “Back drive” refers to the phenomenon that the shaft rotates in the direction of gravity when the power of the strain wave gear mount is turned off.

    CNC machined aluminum alloy AL6061 is used for aircraft. That’s why it’s small, light and stiff. The beauty of the machined surface increases the collection value.

    WiFi is built in. You can control the mount via the SkySafari app on your smartphone. Ascom Driver can be connected via WiFi as well as USB. GOTO and AutoGuide are now wireless.

    GPS receiver is built in. The position and time of the observer can be entered accurately and conveniently.

    There is a built-in home sensor to find the mechanical origin. This is useful for permanently using Star Alignment data. Build an ultra-small remote observatory with the RST-300 mount.

    Features

    • Counterweights Not Required
    • Only 8.5kg weight
    • Capacity 30kg (max 50kg)
    • Strain Wave Gear (Harmonic Drive)
    • Built-in brake (RA Axis)
    • 5 years warranty

    Included Items

    • RST-300 mount
    • Hand controller (Hubo-i SE)
    • Cable for hand controller
    • USB cable
    • Power cable (Cigarette Lighter Plug)
    • Power cable (5.5×2.1DC Jack)
    • AC-DC power adapter
    • Adapter for Polemaster
    • Soft case
    • 5mm Hex Wrench

    Mechanical Specifications

    Mount type Dual mount – German Equatorial, Alt-Azimuth
    Gear Strain wave gear (Harmonic Drive)
    Load Capacity 30kg(without counterweights), 50kg(with counterweights)
    Recommend Telescope 12inch Reflector, 7inch Refractor
    (without counterweights)
    Weight 8.5kg
    Volume 18.3 x 17.5 x 27.9 cm
    Material Aluminum alloy AL6061, Steel, Brass
    Surface coating Anodizing
    Gear size(RA) Model No. 25 (Based on HDS)
    Gear size(DEC) Model No. 25 (Based on HDS)
    Motor Swiss made Maxon DC Servo Motor
    Latitude range 0 to 90 degrees

    Controller Specifications

    Max Slew Rate 1,200x (5deg/sec) – 16V DC
    1,000x (4deg/sec) – 12V DC
    Input Power DC 12V ~ 16V
    Power Consumption(Tracking, 12V) 0.4A
    Power Consumption (Slew, 12V) 4.0A
    PC Connection ASCOM Driver
    GPS Built-in (Hand Controller)
    WiFi Built-in (Hand Controller)
    Home Sensor Built-in
    Brake Built-in RA axis : To prevent back-driving
    High voltage, reverse polarity input protection Built-in

    Reviews

    There are no reviews yet.

    Be the first to review “Rainbow Astro RST-300 Weightless Mount”

    Your email address will not be published. Required fields are marked *

    Optional Products

      Need Expert Advice?

      Visual Astronomy, Astrophotography, Microscopy and Macro Photography can be a little complicated sometimes as there are a lot of options. If you'd like to check something before you purchase just let us know and we'd be happy to help!

      Enquire now or call us (03) 9042 2293