Optec Pyxis 2" I.D. Camera Field Rotator

Optec

About Optec

The Pyxis camera rotator was specially designed with the guiding chip of the SBIG ST-x CCD cameras in mind. Simply locate a suitable guide star, enter the position angle and let the Pyxis rotate the camera so that a bright guide star is centered on the tracking chip. For those with alt-azimuth mounts, the Pyxis can derotate the field while tracking the object. A simple Windows interface program is provided that controls rotation and derotation modes as standard. Utilizing a precision sealed 50mm bearing, the Pyxis provides the rigidity and stability you expect from Optec instruments.

Weighing less than 2 lbs the Pyxis can support and rotate the SBIG ST-x line of cameras without slipping. If the holding torque of 27 inch-pounds is exceeded, the drive gear will slip but no damage to the Pyxis will occur. The running torque is 15 inch-pounds. This limit to the holding and running torque will also prevent damage to cables and instruments if a rotational stoppage does occur. The Pyxis can handle the SBIG AO-7 adaptive optic with camera. The clear aperture of the Pyxis is 1.65 inches and adds about 1.6 inches to the back focus. For large instrument packages or systems that use the SBIG STL camera with large CCD, the new Pyxis 3-inch model is suggested.

Intelligent firmware will choose the best direction for each move to keep camera cables from binding. The built-in circuit board provides all the control needed no external hand control box is required. The Pyxis was designed for use with the Optec TCF-S Focuser and IFW filter wheel. Fully compatible with the Optec NextGen MAXfield and NextGen WideField telecompressors, the Pyxis can be used at 1X, 0.5X, and 0.33X using any SBIG camera.

Optec Features

  • Pyxis Camera Rotator automatically centers a bright guide star on your tracking chip.
  • Made for SBIG ST cameras in mind...works with other cameras as well.
  • For alt-az mount owners, let the Pyxis de-rotate the field while tracking an object.
  • High torque motor is now standard on the Pyxis!

Optec Specifications

Main Gear Diameter
4.125 inches
Total Gear Reduction
110:01:00
Number of Steps for One Rotation
5280
Degrees for One Step
0.0682° (4.09 arc minutes)
Load Capacity
5 pounds maximum
Motor Type
Bipolar Stepper
Motor Voltage
12 VDC
Motor Steps for One Rotation
48
Motor Coil Resistance
40 ohms high torque motor with neodymium magnets
Microcontroller Type
PIC16CE625
Microcontroller EPROM
2K x 14
Microcontroller RAM
128 x 8
Microcontroller I/O Lines
13
Microcontroller EEPROM
128 x 8
Microcontroller Operating Temperature
-40° to +80° C
Voltage
11.7 to 12.3 volts DC
Current
500 ma for high torque motor
Fuse Protection
0.8 amp, PTC reset able
Size
6 inches diameter x 1.5 inches thick without adapters
Clear Aperture
1.65 inches
Weight
27 ounces with adapters
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