samples to Denmark

These two carbon fiber sandwich core struts are 55.7" long, 4.0" wide, 1.1" thick and each weigh 1.85 lbs.

They have three reinforced holes: one near each end and one in the middle.
 

These holes can be used to attach small counterweights, hold data or power cabling, or used as the attachment point of the strut itself.
 
 

 Click the small image for an update on this project.

One of the struts is shown to the right under 195 lbs of "live" load. The strut weighs 1.85 lbs.

This strut is a sampling of the basic dimensions used for the upper truss lengths on either a 24" Dream Astrograph (Newtonian) or a 32" Dream Corrected Cassegrain, both of which use cellular mirrors for M1 and M2.

Remember that an upper truss assembly uses eight of these struts (trusses). The secondary assembly on Dream's telescopes normally weighs between 4-8 lbs total, which includes the weight of the secondary mirror itself. Even the 10.75" cellular secondary on the 32" Cassegrain will weigh just under 4 lbs.

Stiffness is paramount in an opto-mechanical structure.

 

 
 

pricing, availability and specifications subject to change without notice