Rainbow Astro RST-300

Instruments loading (without counterweight): 30kg

Instruments loading (with counterweight): 50kg

Mount weight: 8.5kg

Huge power to weight ratio

The mount weighs only 8.5kg yet able to handle instruments loading of 30kg without using counterweights.

Counterweights Not Required

Counterweights not required. Of course, little to no effort is required to balance.

Strain Wave Gear(Harmonic Drive)

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.

Built-in Brake

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 Machining

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

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

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

Home Sensor

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. 

Included in the package

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

Advantages of NEW Polar Alignment Base

• Adjustment precision doubles
  The angle that changes when the adjustment knob is rotated one revolution has been changed
  Altitude: 2 degrees-> 1 degree
  Azimuth: 1.14 degrees-> 0.57 degrees
• Altitude adjustment part backlash reduced
  Two additional bearings are used, and machining tolerances of the parts are minimized to significantly reduce backlash.
• Increased adjustment convenience
  The shape of the altitude adjustment knob has been changed, making it easier to adjust without tools.
  As the bearing is added and the angle per rotation is reduced, a smaller force is required than before.
  The azimuth adjustment knob has been changed to allow the use of the T wrench provided with the mount.
• Increased rigidity of the altitude adjustment part
  The possibility of breakage when operating with excessive force has been reduced.

Specifications – Mechanical

Specification – Controller