Software Bisque Paramount OTA Ring Manuale utente
Paramount OTA Ring and Paramount Taurus
OTA Installation Instructions
Revision 1.2, January 2018
© 2018 Software Bisque, Inc. All rights reserved.
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Table of Contents
Introduction .................................................................................................................................................. 4
Getting Started.......................................................................................................................................... 4
Type of OTA Mounting.............................................................................................................................. 5
Scope Mounting Brackets and Scope Rail Instructions................................................................................. 5
Packing List Scope Brackets ...................................................................................................................... 5
Bracket Installation ................................................................................................................................... 6
Front Bracket Installation.......................................................................................................................... 7
Rear Bracket Installation......................................................................................................................... 10
Scope Rail Installation............................................................................................................................. 11
Bracket Dovetail Accessory Plate Installation.........................................................................................14
Mounting Rings and Scope Rail Installation................................................................................................ 15
Packing List Rings .................................................................................................................................... 15
Ring Installation ...................................................................................................................................... 15
German Equatorial Mounts ................................................................................................................ 15
Equatorial Fork Mounts ...................................................................................................................... 21
Ring Use .................................................................................................................................................. 23
Scope Rail Installation............................................................................................................................. 25
Set Screw Adjustment............................................................................................................................. 26
Ring Dovetail Accessory Plate Installation .............................................................................................. 27
Cage Array Installation................................................................................................................................27
Array Assembly Instructions ...................................................................................................................28
Scope Installation Instructions................................................................................................................28
Scope Adjustments .................................................................................................................................28
Scope Rail Installation............................................................................................................................. 28
Scope Assembly Installation for a Paramount Taurus ................................................................................29
Scope Rail Installation............................................................................................................................. 29
Fork Mounting Plates.......................................................................................................................... 29
Telescope Scope Rails ......................................................................................................................... 30
Telescope Installation ............................................................................................................................. 31
Adjusting the Cylinder Assembly During Telescope Installation......................................................... 32
Telescope Balancing................................................................................................................................34
Balancing in Right Ascension............................................................................................................... 35
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Balancing in Declination...................................................................................................................... 37
Relieving Fork Stress ............................................................................................................................... 38
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Introduction
This document describes how to attach a variety of optical tube assemblies (OTAs) to the Paramount
Taurus equatorial fork model mounts.
Software Bisque also manufactures precision OTA mounting rings for:
•14-inch Celestron C14 Schmidt-Cassegrain (SCT) OTAs
•14-inch Rowe-Ackerman Schmidt-Astrograph (RASA) OTAs
•Meade 16-inch SCT OTAs
The rings are compatible with:
•Paramount Taurus 400 equatorial fork mounts
•Paramount ME II German equatorial mounts (GEMs)
•Paramount MX/MX+ GEMs
Please review Table 1 and the steps to determine which sections apply to your setup.
Getting Started
Table 1 lists the apertures of many common commercial telescopes, and the accessories or bracketing
hardware that is required to attach an OTA of this size to the Paramount.
An optional Paramount Taurus Dovetail Plate can be used to mount optics or other instruments to the
OTA itself.
OTA
Aperture
(in/cm)
Paramount ME II
Taurus 400
Taurus 500
Taurus 600
Taurus
Accessory
Dovetail
Plate
Compatible?
24/61
Large Dovetail
Accessory
n/a
n/a
Taurus 600
Brackets
Yes
20/51
Large Dovetail
Accessory
n/a
Taurus 500 Brackets
n/a
Yes
17/43
Standard Versa-Plate
Dovetail
Taurus 400
Brackets
n/a
n/a
Yes
14/36 SCT
Standard Versa-Plate
Dovetail
Celestron 14-inch
Rings
14-inch Cage Array
(up to 6 total)
14-inch Cage
Array (up to 9
total)
Rings Only
16/41 SCT
Standard Versa-Plate
Dovetail
Meade 16-inch
Rings
n/a
n/a
Rings Only
11/28
Standard Versa-Plate
Dovetail
n/a
11-inch Cage Array
(up to 6 total)
11-inch Cage
Array (up to 9
total)
No
Table 1: Paramount OTA mounting options.
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Type of OTA Mounting
There are five types of OTA mounting mentioned in Table 1 for the listed telescope apertures and
systems:
1. Standard Versa-Plate Dovetail
a. All Paramount ME II mounts include the standard Versa-Plate with a dovetail that
requires no extra mounting hardware. See the Paramount User Guide (GEM Models) for
a description of this component.
2. Large Dovetail Accessory
a. The Paramount ME II can be fitted with an optional Large Dovetail Accessory. Click on
this link to read the referenced PDF document for instructions on how to install the
mounting hardware, and the telescope.
3. Mounting Brackets
a. Mounting brackets have a unique set of instructions and packing list for each Taurus
model (400, 500, or 600).
4. OTA Mounting Rings
a. OTA mounting rings can be used to attach an OTA to the Paramount ME II or Paramount
Taurus 400. For Meade 16-inch and Celestron 14-inch OTA mounting rings, see the
section “Mounting Rings and Scope Rail Installation” on page 15 for installation
instructions.
i. For Paramount ME II mounting instructions, see “German Equatorial” on page
15 under “Mounting Rings and Scope Rail Installation”.
ii. For the Paramount Taurus 400, see “Equatorial Fork Mount” on page 15 under
“Mounting Rings and Scope Rail Installation”.
5. Cage Arrays
a. Cage arrays are shipped mostly assembled, but the scope rails must be mounted.
Additional documentation coming soon.
For the optional Taurus Accessory Dovetail Plate, see the “Bracket Dovetail Accessory Plate Installation”
for OTAs using brackets, or “Ring Dovetail Accessory Plate Installation”for OTAs using mounting rings.
Scope Mounting Brackets and Scope Rail Instructions
Scope mounting brackets are used to mount the scope rail component to Officina Stellare or Planewave
model OTAs. The scope rail component is used to mount the OTA to the Paramount Taurus fork arms.
These mounting brackets are easily installed on an existing scope as described below.
Packing List Scope Brackets
Picture
Part Description
Front mounting bracket (has channel*, 2 pieces).
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Picture
Part Description
(side view)
(side view)
Rear mounting bracket (has no channel*, 2
pieces)
* The Paramount Taurus 400 brackets are the
same for the front and back rings.
Scope rail plate.
Socket Head Cap Screws (SHCS)
(40) 5/16-18 x 1-1/8-inch SHCS
(8) for Stainless Steel Rail/Mounting
Thinner plate mounting component
¼-20 x 5/8-inch SHCS (6 pieces)
Thicker plate mounting component
¼-20 x 1-1/8-inch Array Assembly Instructions
SHCS (6 pieces)
Bracket Installation
These brackets get mounted 90 degrees from each other on the OTA. Typically, they are attached on the
two sides that do not already have Losmandy dovetail installed (Figure 1).
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Figure 1: Mounting brackets (circled in yellow) to be installed on sides 90 degrees of Losmandy dovetail plate (the blue
component is the Officina Stellare dovetail).
The brackets for the scope rail are the same brackets used for the scope accessory plate. This means the
instructions described in under “Bracket Installation” on page 6 apply to both components.
If more than one accessory plate will be installed, other mounting plates such as the Losmandy dovetail
shown in Figure 1 must be removed before installing Software Bisque’s brackets.
Front Bracket Installation
The front bracket has a channel as shown in Figure 2. This bracket gets mounted toward the front of the
scope on the center ring of the OTA assembly (shown in Figure 3).
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Figure 2: Front bracket mounted with channel highlighted in blue.
Figure 3: Center ring of the OTA assembly highlighted in blue.
There are four or eight 5/16-18 x 1-1/8-inch SHCSs depending on the OTA for each of the brackets. The
threaded holes used for the 20-inch Officina Stellare 500 model OTA are shown in Figure 8, and for the
20-inch Planewave CDK20 OTA in Figure 5. The threaded holes for 24-inch Officina Stellare 600 model
OTA are shown in Figure 6. The threaded holes for an Officina Stellare model 400 OTA are shown in
Figure 7.
Figure 4: Eight 5/16-18 threaded holes for Officina Stellare 500 OTA bracket (front on the left, rear on the right).
Figure 5: Four 5/16-18 threaded holes for Planewave 500 OTA bracket (front on the left, rear on the right).
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Figure 6: Eight 5/16-18 threaded holes for Officina Stellare 600 OTA bracket (front on the left, rear on the right)
Figure 7: Eight 5/16-18 threaded holes for Officina Stellare 400 OTA bracket (front and rear are the same)
The plates are mounted in the orientation shown in Figure 8.
Figure 8: Front bracket installed (Officina Stellare top, Planewave bottom)
Install the second front plate on the opposite side of the scope (90 degrees from the first) as shown in
Figure 1.
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Rear Bracket Installation
The rear bracket which has no channel is mounted on the back ring of the telescope opposing the front
bracket, see Figure 9 and Figure 10.
Figure 9: Rear bracket mounted.
Figure 10: Rear ring of OTA (highlighted in blue).
The other four or eight 5/16-18 x 1-1/8-inch SHCSs for the rear bracket are the same as the front bracket
as shown in Figure 4 and Figure 5. Again, the orientation the plates are installed in is shown in Figure
11.
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