Rigel Systems
Manufacturer of innovative astronomy accessories

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usb-nSTEP, wifi-nSTEP
a
nd STEPPER Motor Kits

Picking a solution is easy as
1: Select STEPPER motor for your focuser
2: Select usb-nSTEP controller

3: Select an accessory
4: Download and install the software

We do over 100 variants of focusers, if you don't see yours here, e-mail us!
Because we do over 100 variants, bracket kits are semi-custom and lead time is 1-2 weeks.


1: Select Stepper Motor

Order just a Stepper Focus Motor here $99.95

Select Telescope Focuser
Telescope Size

or Scroll Down for nSTEP + Stepper Package

 

Custom Stepper Motor Kits for your focuser.
Got a focuser that's not one of the ones listed on our website? We've probably already done it! With a couple of photos and a few measurements we can make a stepper motor kt that will fit your focuser at no additional cost -- just $99.95
e-mail us at rigelsys@cox.net and we'll get it started!

 
For

Stepper Motor
for Celestron CPC & HD telescopes
Motorize your Celestron focuser with our powerful stepper motor. for the ultimate in accurate auto-focusing. Stepper motor has 0.1 degree step size, easily lifts 8 pounds. Stepper can be quickly detatched for manual focusing. Uses standard 6-wire telephone cable and RJ12 connector. Focuser not included.

Videos of Rigel Systems Focus Motor Products in Action


Stepper Motor for Explore Scientific Focusers
Motorize your Explore Scientific focuser with our powerful stepper motor. for the ultimate in accurate auto-focusing. Stepper motor has 0.1 degree step size, easily lifts 8 pounds. Stepper can be quickly detatched for manual focusing. Uses standard 6-wire telephone cable and RJ12 connector. Focuser not included.
 

Stepper Motor for Feathertouch Dual Speed Focusers
Motorize your Feathertouch dual speed focuser with our powerful stepper motor. for the ultimate in accurate auto-focusing. Stepper motor has 0.1 degree step size, easily lifts 8 pounds. Stepper can be quickly detatched for manual focusing,. Uses standard 6-wire telephone cable and RJ12 connector. Focuser not included.

 


Stepper Motor for GSO Classic Focusers
Motorize your GSO Classic focuser with our powerful stepper motor. for the ultimate in accurate auto-focusing. Stepper motor has 0.1 degree step size, easily lifts 8 pounds. Stepper can be quickly detatched for manual focusing. Uses standard 6-wire telephone cable and RJ12 connector. Focuser not included.

 
Stepper Motor for GSO LF 2" and 3" Focusers
Motorize your GSO LF focuser with our powerful stepper motor. for the ultimate in accurate auto-focusing. Stepper motor has 0.1 degree step size, easily lifts 8 pounds. Stepper can be quickly detatched for manual focusing, or switching to our dc motor for nFOCUS control. Uses standard 6-wire telephone cable and RJ12 connector. Focuser not included.

nStepper Motor for Televue Focusers
Motorize your Televue Rack & Pinion focuser with our powerful stepper motor. for the ultimate in accurate auto-focusing. Stepper motor has 0.1 degree step size, easily lifts 8 pounds. Stepper can be quickly detatched for manual focusing. Uses standard 6-wire telephone cable and RJ12 connector. Focuser not included.
 
Stepper Motor for UO Dual Speed 2" and 3" Focusers
Motorize your UO (StellarVue and others) dual speed focuser with our powerful stepper motor. for the ultimate in accurate auto-focusing. Stepper motor has 0.1 degree step size, easily lifts 8 pounds. Stepper can be quickly detatched for manual focusing. Uses standard 6-wire telephone cable and RJ12 connector. Focuser not included.
2: Select nSTEP controller

Computerize your Stepper Focus Motor
from your pc

Fully ASCOM compliant so it will work with popular focus control programs. Can be operated for temperature compensation with the optional temperature sensor (below). Full step and half step control from computer and display of step count. USB and 12V battery power cables included. Software and ASCOM drivers for Windows xp/vista/7/8/10.

Compatible with Rigel Systems, Feathertouch, Robofocus & Moonlite stepper motors (please identify your stepper motor when purchasing).

Scroll down for package deals.

wifi for manual focusing


Fully control your focuser from your tablet, iphone or android phone

Features

Design

MODULAR - Buy just the components you need. Affordable upgrade path to more features and online firmware improvements. Unlike all-in-one boxes, Modular design provides easy upgrade or repair of components.

Maturity

Since 2010 with over 1000 installs.  Fully checked out for compatibility with the most advanced Autofocus software, including ASCOM and INDI drivers.

Customization

We are responsive to special user needs, such as higher resolution temperature measurements, custom bracket kits for one-of-a-kind and classic telescope focusers at no extra charge.

Tech Support

Prompt. Friendly, responsive  via e-mail right here in USA with the owner and our SW/HW guru, as well as via our online forum. We've supported many remote customers in the field as far away as Chile and Australia on a time critical basis.
Stepper resolution
Gear coupling of stepper to focus shaft provides up to 9,600 steps per revolution in full step mode and 19,200 in half step mode to supply the very fine focus movement required for  fast telescopes and camera lenses.

Max Focus Knob Rotation Speed

17 deg/sec
12V power for stepper
usb to 12V power cable included FREE for use with any spare USB phone wall charger or powered USB hub to supply 12V DC for the stepper.
bracket kits & gear ease of installation.
Tailored to each focuser for ease of attatchment, each kit contains all the parts needed for each particular focuser.
Adding more scopes
User can add just a bracket and gear kit ($70) to a new telescope and move the stepper, or add bracket and stepper ($99.95) and just swap the wifi-nSTEP between them.
temp sensor
FREE  with full controller/stepper package, has its own dedicated port.   0.1 degree C resolution per measurement
Manual Focusing with focuser knobs
Gear coupled stepper easily declutched for use of coarse and fine focus knobs.
Added Weigh on Telescope

250 grams

wifi-nSTEP push-button focusing

 Integrated two speed push buttons with independent manual speed control. Position kept in sync whether moved by  PC or push buttons. 
 wifi-nSTEP focusing
from phone/tablet
 wifi provides full focusing control from Android or Apple phones and tablets using dedicated app or web browser. SOON compatible with Wii remote.  Position kept in sync whether moved by  PC, wifi or push buttons. 
wifi-nSTEP standalone operation
Focus using wifi phone or integrated push buttons without PC

usb-nSTEP
basic (PC only via usb)
Full control of your focuser from your PC



$139.95

(focuser, stepper motor and pc not included)

wifi-nSTEP
pc focus via usb or manual using push buttons or Wifi from phone/tablet app or browser

$189.95

(temp sensor, focuser, stepper motor, iphone and ipad not included

usb-nSTEP + nFRAME
PC control of focus and camera rotation
Full control of your focuser from your PC and rotation of camera for frameing (important for mosaics)

Click here to learn more!

 

Package Deals

usb-nSTEP basic (PC only) plus a Stepper
order on our website and get a free temperature sensor!
$239.95

Select Telescope Focuser
Telescope Size

 

wifi-nSTEP plus a Stepper
order on our website and get a free temperature sensor!

$289.95

Select Telescope Focuser
Telescope Size

3: Select an accessory


Temperature Sensor
$14.95
Temperature Sensor--
Add Temperature Compensation to Focusing:

Telescopes change focus as temperature changes expand/contract the length of the telescope tube as temperature increases/decreases. Adding the external temperature sensor to the usb-nSTEP allows your autofocus software to and automatically compensate for these temperature changes. Unlike internal temperature sensors located inside the controller that are affected by the heat generated by the electronics, the external temperature sensor can be attached to the telescope to get a more accurate measurement of the ambient temperature.

4: Download software for WINDOWS or MAC

usb-nSTEP and wifi-nSTEP software for WINDOWS

usb-nSTEP basic (PC only) manual for WINDOWS

wifi-nSTEP manual for WINDOWS

usb-nSTEP software for MAC

usb-nSTEP basic (PC only) manual for MAC