CUSTOM MIRROR CELLS
by JP ASTROCRAFT
NOTE! NO SLINGS ALLOWED!
The cell apart.
The mirror is mounted to the "A" shaped frame which includes the flotation system and edge support. The mirror edge is positively located by the two contoured mounting shoes which pivot to prevent pinching the edge. The rectangular frame fastens to the mirror box and is separated from the "A" frame by Belleville springs. Compressing these springs allows collimation adjustments without affecting the mirror to support relationship.
These are the stainless Belleville springs, a lot of spring in a small package.
This is the mirror side of the "A" frame assembly.
The 18 point support system parameters are computer generated for optimization.
Close up view of the edge support pivoting shoes.
The shaft mounted aluminum channel and spherical bearing joint at the bottom of the triangle are visible here.
This combination of pivots was found to show significantly less collimation shift as the scope is slewed about. Also note the nylon triangle alignment pin extending downward from the triangle.
And an optional brass collimation knob.
It looks pretty and adds a little balance for those big Naglers.
Other Mirror Cells
Twenty five inch cell featuring spherical bearings at pivot points.
A 9 point cell for a 13.25 inch mirror.
Six point cell for a 10.25" mirror
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