Astroasis Focuser w/clutch

Astroasis Focuser with Clutch

Overview:

Oasis Focuser is an electronic focuser with clutch mechanism, designed for astronomical observation and photography amateurs. It also has some other excellent features.

This product features the use of two gears instead of coupling as driving parts. One of the gears is installed on the shaft of the telescope focuser and the other is installed on the shaft of the motor. By holding the rear end of the Oasis Focuser and turning it, the two gears can be separated or meshed.

The clutch is self-locking. In most cases, as long as the Oasis Focuser is switched to the ON or OFF state, it can be kept in meshing or locking state without other operations. It is very convenient to use in this way. In addition, a locking screw is provided to ensure that the focuser will always be in a stable state when it needs to work in a certain state for a long period of time. For example, it can be used when the equipment works in a remote observation station and the focuser needs to be in an engaged state for an extended period of time.

Bluetooth control — Users can use mobile devices such as mobile phone to connect Oasis Focuser via Bluetooth. Once connected, users can use mobile device to do operations such as focusing, firmware upgrading etc on Oasis Focuser.

Small size and large driving ability — Oasis focuser uses a small diameter and high reduction ratio stepper motor made by NPM motor company from Japan. It can drive a large load on the basis of having a delicate and compact appearance. Testing on a Sharpstar 107PH telescope indicates that this product is capable of steadily driving a net load of more than 5 kg.

High precision — The higher reduction ratio means more steps and higher focusing resolution when do focusing. We did some tests and found that on the Starfield ED102 APO Pro it takes about 125 steps per 0.1mm focusing distance, while on the Sharpstar 107PH it takes about 159 steps per 0.1mm focusing distance. On both telescopes the focusing distance of each step is less than 1 micron.

Small backlash — The meshing and locking mechanism of the gears is designed carefully, and the two gears can mesh smoothly and perfectly to achieve the best meshing state. Backlash introduced by the gears is reduced effectively. The overall backlash of the product is very small. Under the same conditions, the backlash of the product is only about 1/3 to 1/5 of the comparison product.

Convenient installation — Oasis Focuser body can be installed to the telescope focuser by means of a clamp. Installation and removal of Oasis focuser body require only a single screw and can be done very quickly and easily. Oasis focuser can also be installed on a variety of telescoope focusers. A small step is designed on the clamp for auxiliary installation and positioning (as shown in the picture below). The installation position of the clamp can be easily determined by the step.

Highly integrated — Except for the external ambient temperature sensor, other functional components including motor, control board and so on, are all in the Oasis focuser body. This makes it very easy to be installed and used. If you only use Bluetooth to control the focuser, you don't even need to use a USB cable to connect it to a computer or other device. You just need to connect 12V power to Oasis focuser.

Features:

• Clutch function — Easy and fast switching between motor and manual focusing
• Bluetooth function — Mobile devices such as mobile phones can be used to control the focuser via Bluetooth
• Small size — Round appearance with small size
• High precision — Micron precision for each motor step
• Ability to drive heavy load — Testing indicates that it can driver net loads more than 5Kg
• Small backlash — Carefully selected motor model and product design results in small backlash
• Easy to install — Easy to install or uninstall focuser body. Only one screw needs to be used to install or uninstall focuser body. And it can be installed on many telescope focusers
• High integrated — Except for the ambient temperature probe, all functions and components (including motor, controller board etc.) are implemented and integrated in the single small-sized focuser body

Additional features:

1. Supports the ASCOM interface
2. Supports the USB HID device interface, driver-free for Windows operation system.
3. Has two temperature sensors; one monitors board temperature, the other monitors ambient temperature
4. Support for backlash compensation
5. Supports electronic auto-focusing
6. Has beep generator for tips or alarms

What's Included: