Model 'Castor' Telescope Drive

5.6" Clock drive
Manufacturered to AGMA Standard 15.

Diameter:	5.6 inches
Diametrical Pitch (D.P.):	64
Number of Teeth:	359
Suggested Telescope Axis:	RA
Worm rotation rate:	0.25 RPM yields sideral rate
Worm Diameter:	0.625" - 303 Stainless Steel
Motor input shaft rate:	1 RPM, other ratios available. Contact Contact Optic-Craft for more information
$695.00

Accessories and Options
AC Sync Motor	$0
This is the standard motor for all drives.
Backplate Drive	$35
Back plate for either RA or Dec drive for 5.6" drive only.
DC Motor	$0
This 12 volt DC motor may be ordered in place of the standard AC motor on any drive at no extra charge. Typical use is on the Declination drive.
DC Motor Control	$90
Speed controller for DC motor allows control of RPM to 20x the sideral rate.
Drive Electronics (Simple and GoTo)	See Site
UK supplier of Telescope Drives (simple and GOTO), Sidereal Time Clocks and other electronics equipment for serious astronomers. Visit their site for more information: Web Site for AWR Technology
Large Worm	$170
Heavy Duty worm block assembly for drives 5.6", 6.6" and 9.0" using 1.00" dia. worm and .500" worm shaft.
Setting Circles	$86
Only 6" dia. aluminum with black body and white etched number border to fit their axis.
Stepper Motor	$65
Hurst DC stepper motor per axis.
Stepper Motor Controller	$290
Hurst EPC-015 stepper controller palm size. Price per axis.

Examples of Castor from the Photo Gallery