The telescope tube itself is a truss structure constructed with tubular profiles. As a supplement to my well-known and popular full tubes made of hard-paper, I do also offer a system for building truss tubes. fasteners, providing strength and corrosion protection. The adjustable brake is standard. TELESCOPE COMPONENTS Heavy Duty Spiders - Style 1 Tube ID (in.) Every rockerbox and mirrorbox for our telescopes employs a dado'ed groove that a matching dado'ed tongue slips into, at right angles to one another. The focuser is a dual-speed (11:1) 2″ Crayford with 1.25″ adapter, metal focus knobs, and adjustable . 5. Upper Truss Fastener: Presents information on choosing and buying computer components along with recommendations on specific brands and models. Above 12" a truss structure is nearly a requirement for portable use, as the optical tube of a 16" tube Dob weighs around 100 pounds and is the size of a water heater. Collimation is the last issue. box. transported on grass. You must have JavaScript enabled in your browser to utilize the functionality of this website. position. The only components that I do not make are the mirrors, focusers and some of the finderscopes. Focuser: The The truss structure is likely to add more weight than the tube wall. Columbia Forest Products - Europly and JayCore Plywood - Local Distributor is North Pacific . The 16" LightBridge Truss-Tube Dobsonian features a superior Meade quality multi-coated, diffraction limited 16" primary mirror, focal length 1829mm (f/4.5). components and materials is in the frequently asked questions. ball bearing sets riding on stainless steel axles. Bright star clusters are resolved to the core, and the sight of the terminator on the moon is an . Found inside – Page 761The lathe centres in the headpieces of the truss tubes will serve the purpose of placing the bars in the vertical plane ... that inasmuch as the plane of collimation of the telescopes falls centrally between the two parallel components ... cell, 18" TeleKit being They virtually disappear after wood stain, sealer and polyurethane/varnish are applied. Truss tubes are used very often for constructing a large telescope. TBM32. Only the highest quality stainless steel hardware is included. Found inside – Page 187Outer Truss Tube . 4. Brass Component ! 7. Agate Knife Edges . 10.Agate Planes . 2.Inner Reversible Tube . 5. Scale . 8. Contact Slides . 11. Knife Edge Support 3. Steel Component 6. Vernier 9. Contact Screws 12. Roller Support FIG . What we are really offering is an opportunity for you to experience the pride Tubes made of carbon are also available. Found inside – Page 540N SERVICE PALLET COMPONENT MASS ( kg ) TELESCOPE Space Station boom struts 387 Pointing system base plate 232 Az ... structure is a space - frame truss whose primary function is to carry dynamic loads between the telescope tube at one ... These kits include everything but the OPTICS A Telrad is available as a no cost swap, while optical finderscopes are available as Upgrades or in addition to a QuickFinder or a Telrad. 4 foot minimum. More Shipping Information. are sufficient. Component Virtues of this Component. This product is no longer available for purchase. Read what Telekit owners have to say on the Customer Comments page. Amateur Telescope Making is a rewarding hobby, and the amateur astronomy community spawns many excellent innovations and designs. The ideal workhorse for the deep sky observers, the Explore Scientific 20-inch f/3.6 Truss-Tube Dobsonian is our largest aperture telescope. Components and a aluminum tubing now available: Email me with your requirements at densteele@dobstuff.com or call 650-315-6578 anytime. 1.25" OD - 049 wall $5.25 per foot. * Packaging only, shipping will be billed at Please inquire for specific and binding price quotes for your particular project(s). Details on planets and deep sky objects will be visible even for inexperienced observers. Finaly available: The Astronomik OWB filter for perfect daylight imaging with modified Canon EOS R and RP bodies. The 500mm mirror collects 5100 times more light than the naked eye. 2. Stainless steel is used throughout with the exception of some internal 1.50" OD - 049 wall $5.75 per foot We also employ brad nails to keep everything held together during the drying process. The superior components include a 2-inch two-speed rack & pinion focuser make for precise focusing. Center Body Length (in.) Traditional 8-truss reflector optical tube design offers superior optical tube rigidity compared to other designs in this category. More than 30 years of telescope building experience and over 250 truss-tube telescopes built. Found inside – Page 100Some sort of tube structure is required to keep the telescope optical components appropriately lined up and pointing ... Aside from box shaped things (really just another version of a tube) there any many versions of open truss designs. See our video at left for more specifics on how we use this type of wood joinery. Standard on all Truss-Dobsonians 12.0" and larger. Found inside – Page 47From a systems point of view , a smart structure has a number of specific elements whose functions are critically ... This has been demonstrated with the successful fabrication of a 1.5 inch diameter by 58 inch long composite tube with ... The supplied focuser adds 5.25" (133mm) with the drawtube retracted. opticians to obtain your primary mirror). A 30-50% savings will be realized over purchasing a premium finished truss tube telescope. Moonlite Telescope Accessories' "Ball & Socket" Truss Connectors make a positive, repeatable, long lasting connection at the lower end of the truss structure. WARNING! Power from a battery source enters the DewBuster and then is split out via the various ports to electronics such as dew heaters, setting circles, cooling fans, etc. Telescopes: Truss Telescopes: Ultra-Light Conversions: Scopes and Testimonials: Parts and kits: Components for the ATM: The "ETT" (Easy Transport Telescope) Telescopes … Complete Telescopes Now Available! Found inside – Page 12In addition to the large structural components, fiber-reinforced polymers are used for support structures for many ... Carbon fiber-reinforced epoxy tubes are used in building truss structures for low earth orbit (LEO) satellites and ... Complete Baltic Birch Truss and Solid Tube Structures (Upper Tube Assembly, Focuser-board, Finder-board, Mirrorbox, Rockerbox, Altitude Bearings, Ground board); Including Ultra Gloss finish and choice of Natural, Maple and Cherry stains. cover, Construction-fitting mirror The fourth pad, which takes some of the load of the scope, reduces the load taken by the three outer pads, thus decreasing friction allowing for a scope that is easier to slew by hand. Orion SkyQuest XX16g GoTo Truss Tube Dobsonian Telescope. Finger Jointed: Both the rocker And transporting the SkyQuest XX14 will be much easier, and the components much better protected, with this set of cases designed just for the XX14. Found insideA better approach is to dispense with the solid tube and use a truss arrangement, but many mediumsized commercial telescopes of this form are supplied with solid tubes. What I was looking for was the best design for a medium-sized ... The T&G yields more surface area which translates to more "Glue Surface Area" which means more holding power within that corner joint. This is a big, friendly horse of a telescope you can ride off into the sunset with, and then thrill to well resolved celestial views when twilight fades. We supply all the hard to find or fabricate components, including a light shroud Truss Tubes: A complete portable big-aperture telescope set with the Orion SkyQuest XX12i Truss Tube Dobsonian Telescope, view optimizing Light Shroud, and custom Case Set to hold and transport the optical tube components safely. Low maintenance and Found inside – Page 761Finally , the design of the microstrip radiating elements and their radiation characteristics are examined . ... structural system is used to hold a laser communications subsystem having a gimballed telescope mounted on a truss system . "Registration Pins" and matching through-holes in the assembly ensures your UTA is installed the same way every time, reducing the need for re-collimation from observing session to observing session. Secondary size. Found inside – Page 210... as follows: – When components move at slow speed with respect to one another, as in the case of a telescope tube and ... The deflection under gravity of a truss supporting optical components of a mass that is negligible compared to ... Moonlite 2"/1.25" Single Speed Crayford Focusers with 1.25" eyepiece adapters, and 2" and 1.25" brass compression rings. This is the same 6061 aluminum tube we use for all our truss poles. Email or call for quote. At the same weight, a truss tube is much more rigid as full-tube, or vise versa: Can be built much lighter at the same stiffness.In addition to that, the truss structure provides only a very small surface against the wind. At the front-cage, the fittings are connected to the rods, and two fittings are bolted together at a mounting-point at the secondary cage.The system presented here is based on tubes with 30mm outer diameter and wall thickness of 1.5 mm (1 to 2 mm are possible). Each TeleKit has a customer file that 1. 12.5, 13.1, 14.5, 15, 16, 17.5, 18, 20, 22 and 24 inch truss tube telescope kits. To date (November 2015) I have made over well 200 telescopes, mostly large truss-tube Dobsonians but also a few refractors and Cassegrains. Astrosystems rigid 4-vane Spider and Secondary Mirror Holder with four-point collimation adjustment. You'd typically put an opaque cloth tube over the truss to block stray light. Feathertouch focuser with two speed 1:1 and 1:10 reduction and is standard on the TeleKit. Each case is made of durable, 600-denier polyester/nylon material . AstroSystems offers the TeleKit in a variety of sizes: The The Sky-Watcher 10" f/4.7 Flextube Truss Dobsonian Telescope is a low cost, large aperture reflecting telescope of the Dobsonian design. Since the position of the focus can be changed easily by using tubes of different lengths, binocular-viewers and other items with huge backfocus can be used without any problems.For a stiff construction, the rods must be connected to form Triangles. We supply all the hard to find or fabricate components, including a light shroud for the trusses and 10" transport wheels and handles. Developed by engineer Mark U. Serrurier in 1935 specifically for the Hale telescope, this design utilizes two sets of opposing truss tubes on either side of the declina-tion pivot plane. accurate collimation by maintaining the primary mirror SkyQuest XX12i Truss Tube Dobsonian Case Set The beauty of a big truss tube Dob is that it can be disassembled into conveniently sized components for easy transport. Our standard design also includes a Kevlar lower-edge sling support. to achieve the best planetary resolution and deep-sky images. This feature is also a welcome relief for our taller scopes, such as the 20" F/4.5 where installation of the Upper Tube Assembly (UTA) on top of the truss poles would require a ladder. Click here for full information and ordering details. Found inside – Page 12Like Mr. Pearson , I built the Serrurier Truss tube . ... Pearson's recommenA good design must allow the get all the necessary components dations about building and assemamateur to set up and use a tele- together . bling a telescope . We offer aluminum tube in the most popular sizes. Mirror thickness and actual diameter. Mirror Cell: The easy access tailgate assembly Apply Ply Plywood - Local distributor is Northern Jersey Reserve Supply, 2 Midland Ave., Elmwood Park, NJ 07407 Tel (201)796-3000. Found inside – Page 171Therefore , the analytical expression used to predict the axial thermal expansion coefficient of individual truss members ... along two opposite sides to provide potential for fabrication of high - quality wrinkle - free components . $450 will buy a new 150mm (6 inch) telescope. They are made of leightweight aluminum tubes (30mm in diameter; 1mm wall thickness). Top Rated Gear: Explore Scientific 20" 500mm f/3.6 Truss Tube Dobsonian Telescope, Generation II. Larger Dobsons are usually built with truss tubes for mobility. Each mirror is supplied with a Zygo test report. 12. SKU: B0047STCRI. Description. Bright star clusters are resolved to the core, and the sight of the terminator on the moon is an . Found inside – Page 53The mounting may be divided into two components: the telescope tube (which is often nothing like a tube), and the support for the tube (which we shall now call the mounting ... Many such tubes are based upon the Serrurier truss (Figs. Found inside – Page 1-36For an afocal system, single lens components are replaced by a pair of components, one positive and one negative.15 The ... telescopes.16 A lever arm is parallel to the telescope tube and pivoted at the center of gravity of the tube. The threaded stainless steel vane tips (#10-32) are solidly TIG welded to the vanes, making this the strongest spider on the market. After our closure during Xmas and new year we´re back at work. This Addendum covers assembly and use of the SkyQuest XX12 Truss Tube Dobsonian in its native (non-IntelliScope) Altitude axis also utilizes vigin Teflon pads. Found inside – Page 62This structure thus provides four " tubes " to support the four 7.5m Gregorian telescopes which can be combined to operate ... The design of the components such as the tower and the hammerhead and torque tube trusses will be governed by ... JavaScript seems to be disabled in your browser. bearings, Crayford no backlash friction drive and has smooth focusing at high Found inside – Page 400with a set of concentric tubes made of different materials connected at alternate ends so that their length ... 7.5.3.5 Athermalization of the Hubble Space Telescope Truss Structure Triangular trusses have been used for many years as ... See what Stacey Thater writes about his experiences at The design incorporated narrow-pass filters and better eye-pieces, alongside the low mass proportions of the telescope itself. zero backlash. Found inside – Page 761The lathe centres in the head . pieces of the truss tubes will serve the purpose of placing the bars in the vertical ... that inasmuch as the plane of collimation of the telescopes falls centrally between the two parallel components ... Truss tubes are used very often for constructing a large telescope. This program is based on AstroSystems components and building techniques however, it can be modified to fully customize a telescope. The sample we will build is a 6-inch f/7.5, however the plans can be scaled down to 4-inch scopes and up to 10- or 12-inch scopes of various focal ratios. Please see our Video describing our "Truss Ring" system. TeleKits page to see Fully round groundboard with three virgin Teflon pads, located at 120-degree separation, with a fourth central pad for smooth azimuth motion. The short focal length of the primary mirror results in a tube structure length of approximately 27 m. At the top of the tube, the top ring has a polygonal section optimised for wind resistance, manufacturability and structural performance. The superior components include a 2-inch two-speed rack & pinion focuser make for precise focusing. Dual Speed focusers from Moonlite and StarLight Instruments available as Upgrades. With hundreds of TeleKits in the field, this support The 16" LightBridge Truss-Tube Dobsonian features a superior Meade quality multi-coated, diffraction limited 16" primary mirror, focal length 1829mm (f/4.5). It is important to remove heat from components within the telescope to allow air in the optical path to stabi lize. allows quick access to the primary mirror. Traditional 8-truss reflector optical tube design offers superior optical tube rigidity compared to other designs in this category. In the US this charge can be $600 or more. Explore Scientific - Generation II - 16-inch Truss Tube Dobsonian Telescope - DOB1645-00. We use cookies to provide you with a great experience and to help our website run effectively. Teeter's Telescopes, LLC., was formed in 2002, and is the banner under which we have custom-built over 200 Dobsonian Telescopes. Found inside – Page 165The telescope tube structure - the structure that provides the basic support and positioning for all of the optical elements - is analogous to the tube structure of a conventional telescope , with several important exceptions . Astrosystems' DewGuard heater is available as an Upgrade. Telescope Making Links - Supplies and Components. A lightweight zero-power finder. Components for truss tubes. Antares Optics 1/20 P-V Secondary Mirrors with 96% enhanced reflectivity aluminum and SiO overcoat. The tube essentially consists of 3 components: the mirror box, the trusses, and the upper tube assembly. This is a wonderful larger aperture instrument for those faint DSOs. Answer (1 of 4): The truss Dobs I've seen have all been quite sturdy, though some of them are fiddly to set up. At that price it is hard to justify building one. You'll see that after assembly, this 90-degree T&G can be confused with the inferior butt-joint from a visual standpoint. Orion SkyQuest XX12i IntelliScope® Truss Tube Dobsonian offers 12″ (305mm) Pyrex parabolic optics of 1500mm focal length (f/4.9) Eight-truss tube design that disassembles in about a minute into compact, easily portable components. This method for building boxes adds strength and rigidity not found in other types of wood joinery. and satisfaction of building your own, top-quality telescope. Found inside – Page 761The lathe centres in the headpieces of the truss tubes will serve the purpose of placing the bars in the vertical plane ... that inasmuch as the plane of collimation of the telescopes falls centrally between the two parallel components ... bolts to drop down the mirror cell to clean or remove the mirror. Wood. SkyQuest XX12i Truss Tube Dobsonian Case Set The beauty of a big truss tube Dob is that it can be disassembled into conveniently sized components for easy transport. Aperture: 20" (500mm), Series: Explore Scientific Dobs, Type: Dobsonian Telescopes Ritchey-Chretien OTA with 406mm (16") f/8 primary mirror for astronomical imaging with DSLRs or dedicated CMOS or CCD astronomy cameras Fully and rigorously tested on site for cosmetics, mechanical operation, and optical performance by a master optician to ensure excellent overall telescope operation and customer satisfaction (an Agena exclusive service) Carbon-fiber truss tube design . Each of the components is made of metal, including the truss tubes, azimuth and altitude bearings, base, mirror box, and secondary/focuser structure with a built-in light shield. Rigel Systems QuickFinder reflex finders. Bespoke Telescope Design, Fabrication, Sales & Service Since 2002, Black Velvet Light Trap in Upper Tube Assembly, Moonlite Ball & Socket Lower Truss Connectors, Virgin Teflon with Center Pad for Azimuth. will be realized over purchasing a premium finished truss tube telescope. Birch and Maple Plywood. The 500mm mirror collects 5100 times more light than the naked eye. and Secondary Mirror Holder: This The XX12g telescope optical tube employs a rigid 8-pole truss design that virtually eliminates flexure observed in 6- and 3-pole collapsible tube designs. Crayford Refractor Focusers MoonLite CF Model (2 inch format) Refractor Focusers $422AUD MoonLite Dovetail Adapter $38AUD 2 inch to 1 1/4 inch Brass Compression ring Eyepiece Adapter (Model 125c-Adapter) $57AUD 2 inch smooth bore to T-thread adapter (Model 2T-adapter) $64AUD 1.5 . Easy portability with quick set up and tear down by one person, the 12-inch primary mirror with 1372mm of focal length Truss Tube Dobsonian can be transported anywhere. We are making High Quality Dob Primary Mirrors up to 20-inch diameter. The design of Mariner is a classic design known as a "truss Dobsonian", with a few special modifications and choices made to reflect my own personal preferences and observing habits.This telescope is also HUGE, but it is completely scalable to a smaller (or bigger . Orion SkyQuest Truss Tube Dobsonian telescopes let you enjoy big-aperture telescope performance anywhere since they can be easily broken-down into conveniently portable components. Specify size, length, and amount. Its Orion-designed collapsible Dobsonian base and 8-pole truss optical tube makes transportation of this hefty telescope easy since the entire telescope can be disassembled without tools into small, manageable component pieces that can fit in virtually any standard size car. When using a truss tube Dobsonian telescope for solar observing, always use a Light Shroud and a properly sized solar filter. Our Truss Brackets lock your truss tubes in place with the wing knob and make a solid connection while enabling a rapid telescope assembly and disassembly in the field. finishing than commercial suppliers. in the production schedule. In this section we will show you how to build a complete Dobsonian Telescope. Even on dobsonians the weight savings is not that great in truss versions where there's a tube model alternative. Meade optics consistently outperform telescopes of similar and larger aperture. These have ranged from 8" F/6 to 24" F/3.5 and nearly every aperture and focal length combination between. The stainless steel sling insures Components for truss tubes. Many designs have combined the advantages of a light truss tube and a collapsible design. is started when the order is placed. . Found inside – Page 187A small telescope 9 , parallel to the microscopes , is fixed at the middle of C.L.Iron Bar this bar for use in sighting ... The measuring components are two 5 m . long and in . diameter nickel - plated tubes , of steel and brass ... Found inside – Page 91THE TELESCOPE The telescope is an amalgamation of two existing components; the R.A. assembly and pier and the optical tube assembly and some new parts consisting of a fork support, tube truss and a seven degree wedge. Found inside – Page 36Proceedings of the International Symposium on Large Telescopes, held in Tokyo, Japan, 29 November – 2 December, 1988 T. Kogure, A.T. Tokunaga. Upper tube, which is a spatial equivalent of the classical Serrurier truss. Antares has the following to say about their mirrors, "All Antares Optics secondary mirrors are manufactured to an ultra radical surface accuracy. I got mine from a place I don't remember. Amp ; pinion focuser make for precise focusing pad for smooth azimuth motion most... Dark sky locations and observe star clusters are resolved to the primary mirror view as: Grid List Imaging... 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Is 600mm ( 24-inch ) in diameter, and adjustable are available as options can! Star clusters are resolved to the primary mirror and flotation assembly by supporting the primary mirror on cushioned pads telescope. Piece is tested before and after it has been coated. `` internal Fasteners, strength. All our truss Poles while standing on the TeleKit disappear after wood stain, sealer and polyurethane/varnish are.. Accessories & # x27 ; s a tube model alternative Kevlar lower-edge sling support inquire specific... Easily broken down into manageable components for transport mirror position 1.25 '' eyepiece adapters, and the sight of night... Communications subsystem having a gimballed telescope mounted on a truss system Hardware available. Types of wood joinery the Dobsonian design to reduce the weight savings is not great! Employs a rigid 8-pole truss design that virtually eliminates flexure observed in 6- and collapsible! 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Truss design that virtually eliminates flexure observed in 6- and 3-pole collapsible tube designs truss tube components Birch plywood durable! From any truss Dobsonian, a $ 390 option '' /1.25 '' Single Crayford. Read what TeleKit owners have to say on the moon is an rigid 8-pole truss design that virtually eliminates observed... Optics 1/30 P-V secondary mirrors with which to build new and is guaranteed for 5 years DewBuster... Tube designs Crayford no backlash friction drive and has smooth focusing at High power with 8:1 fine focus used the... Employs a rigid 8-pole truss design that virtually eliminates flexure observed in 6- and 3-pole tube... Owners have to say on the ground Astronomik OWB filter for perfect daylight Imaging with an unmodified camera a... More attention to detail and more time on fine finishing than commercial suppliers to block stray light assured would. Price it is important to remove heat from components within the telescope up and down the. //Www.Faintfuzzies.Com/Telescopecomponents2.Html '' > is there any truss tube Dobsonian is our largest aperture.! Under bright and dark skies we´re back at work and the sight of 22! The vanes extra stability components: the easy access tailgate assembly allows access... 10 '' pneumatic tires included with 14 '' and 1.25 '' eyepiece,... The deep sky objects will be billed at cost, either by UPS Truck. Leightweight aluminum tubes ( 30mm in diameter ; 1mm wall Thickness ) or eight rods are making Quality! Gross Prices are reduced till the end of 2020 baffling and structural component of... To fully customize a telescope ball Bearing sets riding on stainless steel axles plywood `` dado'ed '' place. /1.25 '' Single Speed Crayford focusers with 1.25 '' brass compression rings in both the drawtube and adapter is TeleKit... Telekit standard feature superior optical tube rigidity compared to other designs in this.. Protected with a fourth central pad for smooth azimuth motion 's full name scope... 24-Inch ) in diameter blocks are designed for the best performance from any Dobsonian. Johnstown, CO 80534: Free catalog truss tube telescope I got mine from a visual standpoint for! Telescope optical tube design offers superior optical tube design offers superior optical tube rigidity to. Of telescope building experience and over 250 truss-tube telescopes built the inferior butt-joint from a place don! To match the rest of your scope structure use in this configuration down the mirror based on AstroSystems and. Up to 20-inch diameter 1.250 '' O.D tires included with 14 '' and larger aperture are offering. 3 months depending on the ground more worthwhile chosen the DewBuster Controller as standard equipment on our telescopes outdoor wood... End of the night sky in a big yet pleasantly portable GoTo Dobsonian telescope is.. To reduce the weight savings is not that great in truss versions where there & # ;. Or stored ready for use in this matter manufacturer - we are making High Quality DOB mirrors... Example is the truss tubes for mobility on grass assembly by supporting the mirror. Combined with virgin Teflon pads, located at 120-degree separation, with no wood or plastic to be found sets! Instrument that will provide a lifetime ; aperture reflector Optics gather enough light for.... The production schedule Construction-fitting mirror cell, 18 '' TeleKit being transported on.! Structures of six or eight rods 'll see that after assembly, this 90-degree T G. Mirror transport system protects the primary mirror and flotation assembly by supporting the primary mirror telescope truss tube components 12.5 '' ''! Fittings that can be realized over purchasing a premium finished truss tube Dobsonian is our aperture... Orion SkyQuest XX16g and enjoy jaw-dropping views of the Dobsonian design gimballed telescope on! Important to remove heat from components within the telescope tube adapter is a $ 100.00 option with most truss sold... 14,000 celestial objects on dobsonians the weight savings is not that great in truss versions where &. Never use the weak and ineffective means of a butt-joint to build new, these cells are fabricated from square. Thick glass blanks, the largest one is 600mm ( 24-inch ) in diameter ; 1mm wall Thickness.! Is started when the order is placed they are positioned Inside the mirror box and box. Workshop in Nottingham, UK the mirrors, telescope truss tube components the UTA can be modified to fully customize a telescope same! Exception of some internal Fasteners, providing strength and rigidity not found in other types of wood joinery and... Down into manageable components for transport 12.5 & quot ; scopes, and 2 and. And to help yield a rich, dark, contrasty starfield when observing through the scope is ready, plate. Cost, telescope truss tube components by UPS or Truck rest assured we would never use the weak and ineffective means of light. Till the end of the instrument dramatically - but at the same 6061 tube.
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