15
Attach Mounting Plate (purchased separately)
Several mounting plates (also called cradle plates) are available for the 1200 mount. If you own more than one instrument,
you may need more than one plate. Follow the appropriate directions for the plate(s) that you have. The darkened holes
represent those used for the 1200 mount.
18" FLAT MOUNTING PLATE (FP1800)
This plate is 18" long and 7.5" at its widest point in the center. The
width of the plate tapers to 5.5" at each end. Four pairs of keyhole
slots that measure 3.2" between centers are provided. The two
inner pairs are 13.75" apart and the outer two pairs are 17" apart.
You can drill additional holes to suit your needs. This plate also fits
the 900 German Equatorial. Attach this plate with six 1/4-20 x 1"
flat head socket cap screws
15” RIBBED MOUNTING PLATE (1200RP15)
This plate is 14.75” long, 7.75” at its widest point 5” at each end
and 1” thick. The underside of the plate is carved into a ribbed
pattern to maximize the strength and minimize the weight - 3 lbs.
A pair of keyhole slots that measure 3.2” between centers are
provided at each end. The distance between the pairs is 13.75”.
Attach this plate with six 1/4-20 x 3/4“ socket head cap screws
Note that the plate is asymmetrical. In most cases, orient the
plate so that the long end points toward the sky. You can also
turn the plate in the other direction to balance your scope.
24" RIBBED MOUNTING PLATE (1200RP
)
For larger instruments, the ribbed structure of this plate
provides the maximum support. Our machinist begins
with thick aluminum plate and carves a strong rib
structure. The final result is 1.5" thick, 24" long and 7.6"
at its widest point. The width of the plate tapers to 5.5"
at each end. A pair of keyhole slots that measure 3.2"
between centers are provided at each end. The
distance between these pairs of holes is 23". Due to the
ribbed structure, you may not be able to drill additional
holes for non-Astro-Physics mounting rings. The plate
weighs an amazing 9.5 lbs. for its size. This is a view of
the rib structure on the underside of the 24" plate.
Attach this plate with six 1/4-20 x1" socket head cap screws.
8.5” DOVETAIL FOR LOSMANDY D SERIES PLATE (DOVELM2)
This Astro-Physics plate attaches to the 400, 600E, 900 and 1200 mounts. If you already
own one of the Losmandy DAP series (fits Astro-Physics refractors), DC series (for
Celestron 8", 11" or 14" SCTs) or DM series (for Meade 8", 10" and 12" SCTs) plates, this
is the mounting plate for you.
Note that the bolt-hole pattern is offset from the center. This allows you to position the
plate either forward or backward depending on the balance point of your telescope. Attach
this plate with four 1/4-20 x 3/4" socket head cap screws and two 1/4-20x5/8" flat head
socket cap screws.
16" DOVETAIL FOR 1200 MOUNTS AND LOSMANDY D SERIES PLATES (DOVELM16)
This Astro-Physics plate attaches to the 1200 mount. If you
already own one of the 17.25” or longer Losmandy DAP
series (fits 6” and larger Astro-Physics refractors), DC series
(for Celestron 11" or 14" SCTs) or DM series (for Meade 10",
12" and 14" SCTs) plates, this is the mounting plate for you.
Note that the bolt-hole pattern is offset from the center. This
allows you to position the plate either forward or backward
depending on the balance point of your telescope. Attach
this plate with seven 1/4-20 x 1" socket head cap screws.
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