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Dobsonian
Mounts
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Amateur
Telescope Making
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Altitude
Bearings
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Image
Sharpening Masks
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Optimized
Mirror Cells
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Clamshell
& Rotating Rings
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AstroGoods
Premium Mirror Cell Kits
Custom
built for up to 13.1" primary mirrors.
Designed to mirror's
specifications for top performance.
E-mail for
shipping estimates
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Every
mirror cell we supply is individually designed. Mirror support
points are computed for the individual mirror specs providing
top performance. Space around and over the mirror (thickness and
diameter) is minimized to prevent unwanted/unnecessary movement
in the cell. We have eliminated mirror clips to achieve a perfectly
round mirror face without intrusions for sharper images (reduces
star flaring). Diagram shows our final design.
The cell shown is our first article, assembled to "dry fit"
before sanding.
Kits
arrive assembled, just disassemble, fine sand and paint or finish.
Materials and manufacture:
Dimensions
and weight:
(1)
Retaining ring:
-
Eliminates
mirror clips for a round mirror face, no intrusions.
- Overhangs
mirror by 0.125".
- Mirror
cannot fall out through smaller opening.
- Attaches
to (2) front plate (black sections).
-
Secures
mirror sides evenly (black sections) with 0.0625"
space.
(3,
4) Rear plate:
What you receive
and need:
What we need
from you:
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Most recent premium cell kit design for 13.1"
Coulter
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Recent
cell diagram - click to enlarge.

Showing Teflon backed knobs and locks.
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Open design, no center obstructions.
Optional
drilled inset for mirror fans.
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