Dobsonian
Mounts
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Apertura Setting Circles
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Free
for providing prototype measurements.
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AstroGoods
has designed simple to install and use drop-in
altitude and azimuth setting circles with
leveling feet for Apertura style 8, 10
and 12" Dobsonian telescopes.
No need to align your mount pointed north.
Our azimuth circle moves freely and is simple
to adjust. Set
the mount down, turn the azimuth circle
0 north, and done.
One
set for each size is available for cost
of shipping only to the first people to
arranging by e-mail to provide dimensions.
Working prototypes already exist, this request
is to refine dimensions. You must be able
to measure accurately.
Measurements
needed (diagram below not to scale).
Ground board and feet:
- Diameter
of a foot measured at its attachment
point.
- Length
of a foot.
- Distance
from outer edge of ground board to center
of a foot.
Side
board:
- Distance
from top center to front edge (shown
as ? below).
- Parallel
distance from center of bearing knob
to front edge.
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Standard Solid From $214. |
Standard Apertura/GSO From $214.
Or just to fix azimuth
motion and stability. |
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HP Custom Solid From $257. |
HP Custom Collapsible From $283. |
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EZ-Adjust azimuth setting
circle assembly.
Point telescope North, align setting circle,
lock, observe. |
About
our mounts
About
mount performance:
A
great telescope is built from the mount up.
Cheap parts or poor design show up in the eyepiece.
Our
mounts feature smooth easy motion, sure stopping
and remain still at high magnification.
Baltic Birch plywood is used for stiffness, strength,
endurance and weight reduction. Virgin Teflon riding
on select Formica laminate provides smooth sure
start/stop motion. Large altitude bearings improve
balance and provide fine incremental movement.
Whether cost, height, weight or transport is your
top goal, AstroGoods mounts are designed for your
specific needs.
Kits
are simple to assemble, even for beginners.
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All
mounts are designed to minimize weight.
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"Wanted
to say how pleased I am.
Total weight 23 lbs, a full 10 lbs lighter
than the particle board OEM base."
- DH. Apertura AD12"
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"Assembly
was very easy and the mount is solid with buttery
motion. It took off a solid 7.5" of height
and 20-30 lbs!" from an old pipe mount -
Robert K. 10" f/7 |
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Mirror
Cells for Visual & Imaging
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Masks for Imaging and Visual Sharpening
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Small
standard altitude bearings (12") |
Large
standard altitude bearings (18") |
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Ring
Assemblies For Dobs or Equatorial Mounts
(with or without altitude bearings)
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