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Hubble Optics Ultra Portable UP 12 Dobsonian Instruction Manual

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Hubble Optics Ultra Portable UP 12
Dobsonian
Revision: 2.0 10-06-2023
Please read these instructions thoroughly before beginning assembly and subsequent
use of the telescope. This manual applies to the UP12 sold after September 2023
1. Unpacking.................................................................................................................2
2. Assembly...................................................................................................................7
2.1 Install the Secondary Mirror................................................................................7
2.2 Assembly of the Dobsonian Rocker...................................................................11
2.3 Assembly of the Mirror Box..............................................................................12
2.3.1 Installation of the Pads and Brass Wires.....................................................12
2.3.2 Installation of the ALT Bearing..................................................................14
2.3.3 Installation of the Primary Mirror...............................................................15
2.3.4 Glue the Primary Mirror For The Air Travel..............................................18
2.4 Install the Truss Tubes and Secondary Cage.....................................................19
2.4.1 Installation of the Truss Tubes....................................................................20
2.4.2 Installation of the Secondary Mirror Cage..................................................22
2.4.3 Installation of the Optional Finder Scope...................................................22
2.5 Adjust the Sling..................................................................................................23
2.6 Balancing The Scope..........................................................................................23
2.7 AZM Tension Spring.........................................................................................24
2.8 Install the iSkyHub-B Digital Setting Circle.....................................................24
3. Collimate the Optics...............................................................................................24
4. Care and Maintenance...........................................................................................27
4.1 Scope and Mirror Storage..................................................................................27
4.2 Mirror Cleaning..................................................................................................28
5. Specifications..........................................................................................................28
6. Limited Warranty..................................................................................................28
7. Technical Support..................................................................................................29
WARNING: Never look at the sun with your telescope without a
professionally made solar filter. Permanent eye damage or blindness
could result. Eye damage is often painless, so there is no warning until
it is too late. Children should not be allowed to handle the telescope.
Avoid using the type of solar filter that screws into an eyepiece. They
are susceptible to cracking under the intense heat that builds up near
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  • Page 1: Table Of Contents

    Hubble Optics Ultra Portable UP 12 Dobsonian instruction manual Revision: 2.0 10-06-2023 Please read these instructions thoroughly before beginning assembly and subsequent use of the telescope. This manual applies to the UP12 sold after September 2023 1. Unpacking.........................2 2. Assembly........................7 2.1 Install the Secondary Mirror................7...

  • Page 2: Unpacking

    Make sure all the parts in the Parts List are present. Be sure to check carefully, as some parts are very small. If anything appears to be missing or broken, immediately email Hubble Optics for assistance. Box #1, The UP12 main structure...
  • Page 3  Layer 3 is for the two ALT bearings  Layer 4 and 5 are for the ground board and Rocker  Layer 6-9 are for the mirror box  Layer 10 is for the upper cage  The truss tubes are placed between layer 10 and 11 ...

  • Page 7: Assembly

    2. Assembly Now that you have unpacked the boxes and familiarized yourself with all of the parts in front of you, it’s time to begin assembly. You’ll need a regular screwdriver, a Phillips screwdriver, a set of metric hex keys (1.5,2,2.5,3, 4, and 5mm), one 6-inch (150mm or smaller) adjustable crescent wrenches.
  • Page 8 1. Insert the Central M6 Screw: First, ensure that the 4 spider wings is securely mounted inside the  upper ring. Insert the M6 (35mm long) socket head screw into the spider's central  stud. 2. Attach the Secondary Holder: Attach the secondary mirror holder onto the M6 screw.
  • Page 9 Rotation of the Holder: If needed, gently rotate the secondary mirror  holder around the M6 screw to ensure that the reflective side of the secondary mirror faces the primary mirror. 3 Collimation Screws Adjustment: These screws allow you to tilt the ...
  • Page 10 Insert the M6 central bolt is inserted Attach the secondary mirror holder to the central bolt...

  • Page 11: Assembly Of The Dobsonian Rocker

    Center the Secondary Mirror in the focuser drawtube 2.2 Assembly of the Dobsonian Rocker The UP12 base is shipped assembled. The only thing you need to do is to install the three plastic feet each time before usage. Make sure to use the wing nuts to lock the three feet firmly, and make sure do not thread the foot too much to block the rotation of the Rocker.

  • Page 12: Assembly Of The Mirror Box

    2.3 Assembly of the Mirror Box The primary mirror is shipped in its own box. Once the primary mirror is installed in the mirror box, there will be no need to remove it until cleaning is necessary. However, for shipping and long-term storage, the primary mirror should be packed tightly in its original packing.
  • Page 13 Push the brass wires outward into a slight curve to keep the support bars in position if needed. The stainless steel cable anchor post and the top locking screw...

  • Page 14: Installation Of The Alt Bearing

     Loose the two cable sling locking screws, and insert stainless cable sling into the anchor post feed hole and temperately tighten the locking screw to keep the cable sling in place. 2.3.2 Installation of the ALT Bearing Rest the Mirror Box on a safe place, for example, the packing foam; and then install the two ALT bearing one at a time using the provided M6 blots (25 mm and 40 mm long each) as shown in the following pictures: Note that you need place the left bearing on the left side and right bearing on the right...

  • Page 15: Installation Of The Primary Mirror

    Then rest the mirror box on the Rocker, and you may install the two ALT bearing limit blocks on one of the bearing. 2.3.3 Installation of the Primary Mirror Rotate the two eccentric side pins and arrange the cable sling to make room for the primary mirror.
  • Page 17 Tie the mirror box to the rocker with nylon strips for the safety You may tie the mirror box to the rocker with the provided strips for the safety for now. Rotate the four eccentric side pin outwards to make room for the mirror. Make sure that the three mirror support bars are evenly placed in the cell.

  • Page 18: Glue The Primary Mirror For The Air Travel

    Once the mirror is installed, you should use the square mirror cover (provided) to cover the mirror box to protect the mirror. 2.3.4 Glue the Primary Mirror For The Air Travel If you plan to travel with your scope via airline flight, then you are strongly recommended to glue the mirror to the mirror cell using Silicone (The clear GE Silicone II or equivalent is recommended) ...

  • Page 19: Install The Truss Tubes And Secondary Cage

    of equal amount of Silicone on the flotation points. Each blob is about 20mm in diameter and 10mm thick.  Place 6 coins (about 1.5mm thick) on the pivoting bars as the spacers. You can use a few strips of hard cardboard, or even the wooden handles of the ice cream bars as spacers.

  • Page 20: Installation Of The Truss Tubes

    Once each pair of the truss tubes has been aligned, there will be no need to align it again if the same pair is connected. Just to place the truss tube pairs to each other in the truss tube organizer to make sure the same pair will be used the next time.
  • Page 21  Make sure that the primary mirror is fully protected with a mirror box cover.  Connect two truss tubes with an M6 knob screw (35mm long) and an M6 wing nut on the multiple-hole side of the top end. The multiple holes are used for optimizing the OTA length for slight variations in focal length of the primary mirror.

  • Page 22: Installation Of The Secondary Mirror Cage

    Figure 1:Tighten the knob screws 2.4.2 Installation of the Secondary Mirror Cage Here is the installation procedure:  Make sure that the primary mirror is fully protected with a mirror cover.  Loosen the wing nuts on all the knob screw as much as possible, but make sure they are still fully engaged on the bolts.

  • Page 23: Installation Of The Optional Finder Scope

     Hold the secondary cage up, and slide one of the slots on the upper ring into the top knob bolt of one truss pair. Make sure you slide the slot into the space between wing nut and the truss tube ends. ...

  • Page 24: Adjust The Sling

    2.5 Adjust the Sling After the UP12 is fully assembled, in order to center the primary mirror, the sling must be adjusted if you have not done it already. 2.6 Balancing The Scope The UP12 telescope's ALT (altitude) bearing is engineered to self-balance the scope under typical payload conditions.

  • Page 25: Azm Tension Spring

    2.7 AZM Tension Spring A tension adjustable spring has been installed to suit the personal preference of each observer with a simple tension adjustment bolt. 2.8 Install the iSkyHub-B Digital Setting Circle You can attach the ISkyHub-B on one of the ALT bearing as pictured bellow. Refer to the iSkyHub-B manual for detailed instruction.
  • Page 26 don't have a collimation cap or sight tube, you can approximate by eyeballing from a distance, positioning your eye centered with the drawtube. The secondary mirror should appear round and be exactly centered within the sight tube. If it is, then Step 1 is complete. If not, adjustments might be needed for either the secondary holder, the focuser, or both.
  • Page 27 Figure 3:The primary mirror is not yet collimated. Figure 4:The primary mirror is perfectly collimated by laser collimator.

  • Page 28: Care And Maintenance

    Step 4: Star-Testing Your Collimation You may use star test to verify the collimation of your scope. Aim the telescope at a bright star. Defocus the star until it becomes a donut looking ring. If the donut hole looks centered (in the center of the donut), the scope is perfectly collimated.

  • Page 29: Mirror Cleaning

    6. Limited Warranty Hubble Optics (Optel Engineering Group Inc.), Seller, warrants to the original purchaser only, that goods sold will be free of material defects in design, materials and workmanship for a period of one year following the date of shipment by Seller to Buyer.

  • Page 30: Technical Support

    7. Technical Support Hubble Optics (Optel Engineering Group Inc.) will provide the support for the basic operations outlined in this document by email. You will receive a response, generally...

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