Motorize your GSO Linear Bearing Focuser with Rigel Systems' high torque 12V DC motor driven by their nFOCUS motor controller for the ultimate in accurate focusing. nFOCUS is the affordable way to get high precision fine focusing without vibration for visual and astro-imaging! DC motor can be quickly detached for manual focusing with the fine speed knob. Package includes nFOCUS controller unit and DC motor.
Focuser sold separately. Will work with all GSO Linear Bearing Focuser models (reflector, refractor, and SCT) but will not work with the standard (non Linear Bearing) GSO fcousers.
nFOCUS Controller for DC Focus Motors
The nFOCUS controller fits in the palm of your hand and provides two directions at two speeds with only two buttons using advanced logic control and 12V regulated output! Low speed is adjustable pulse width modulated (PWM) drive, providing full voltage torque for reliable low speed operation. Press the second button down while holding the first button down and nFOCUS digital logic control switches to high speed drive, to get you to focus quickly. nFOCUS avoids the problems with the focus motor controllers which adjust voltage to adjust speed, and thereby don't have the oomph to turn the motor over at low speed. The nFOCUS whacks the motor with a full 12 volt, short duration pulse to overcome stiction at low speed operation, providing plenty of oomph! It is amazing to see nFOCUS work, to see the focus change step by step till it's just right. No more coasting past then back past then past again. Uses 3 AA batteries (supplied) for long life.
- Installation Manual (PDF File, 1.6 Mb)
- Demonstrational Video: