Steve Bedair's
Telescope Site
Longview , Texas
Updated 2-2003
Celestron C-11 LXD Powered Mount
Electric's / Motors
 


12 Volt rechargeable battery is mounted in rear of the base assembly
 
 


Az LXD motor / worm assembly
 
 


Test fit the Az worm to the worm gear
 
 


Az motor / worm mounted
 


Had to do some milling to gain clearance for the spur gears.
 
 
 


Az worm shaft. Ball bearing supports on each end.
 
 
 


Alt worm / gear assembly
 
 


Alt worm / motor assembly mounted to fork.
 
 
 


Front view of Alt motor / worm.
 


Worm holders are made from 1" od steel pipe.
 


Had to do some milling here also to get clearance for the spur gears.


Update 3-2003
Az shaft upgrade


 

        The wiring for the Alt motor is now routed through the center of the Az shaft and uses a "slip ring" connection
        provided by a 1/4" stereo headphone connection. The forks can now spin indefinitely without any wires to
        tangle. Even though the LXD55 motors have 8 wire connectors only 4 wires are needed. The 1/4" stereo
        headphone connector provides a 3 wire connection and for the 4th wire needed I used the aluminum mount
        itself for the ground wire ( -12 vdc ).




Headphone jack maintains three separate wiring connections even while turning.


A recess or slot was milled into the base of the az shaft for the wiring.
 


With a az shaft in place the female 1/4" stereo headphone connector was
epoxied into the az shaft. With the forks in place the male connector
will simply plug into the az shaft female connector to complete the circuit.


 
 
 
Meade LXD 55 Motor  info Alt / Az Bearing Supports Building Pictures
Forks / Base		 Building Pictures
Electric's / Motors		 More Building Pictures Misc Home

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 Copyright 2001-2002-2003  Steve Bedair