Cage and Truss Tubes
 
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Upper cage tubes   Astro Systems spider

Astro Systems four vane spider, 3 1/2" diagonal mirror and holder.  The focuser board cavity is accessible from a rear panel.  The spider is pre-wired for a diagonal heater
Cage with Telrad base, JMI DX2 2" focuser and light baffle.  
 
Upper cage tubes Truss tube assembly truss tube assembly
Each truss tube assembly is a set of two tubes open an the bottom for insertion into the clamp blocks and unitized at the top with machined 1/4" T6 aluminum angle material.  All individual parts of the mounting assembly are "captured" by the threaded attachment screw.  There are NO loose parts to fall onto the primary.  All knobs throughout the entire telescope are the matching black 4 spike star design.
 
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