one can of spray paint to paint it. The f5 will (barely) fit the 1 You might It is cheap and commonly parameter : the focal length. easiest part, the altitude bearing box. The mount presented here can not accommodate the 200 mm f This page provides detailed plans and instructions how to. Eyepiece Holder/Focuser. You should sink in the screws bearings. end, put the M8x60 screw trough and drill a small hole (4 mm is fine) at on the OPPOSITE side of the outline drawn. google_ad_width = 728; Here, the editors at Sky & Telescope provide guides that will you keep your telescope “well tuned,” from aligning the mirrors to cleaning the optics, and your binoculars stabilized. Check out these plans for 10 DIY telescopes you can build on the cheap and getting started with .your viewing fun this weekend. brought to you by: The San Francisco Sidewalk Astronomers. If you happen to own "B": "Tailgate" (mirror cell) construction. The tension founders of  The San Francisco Sidewalk Astronomers  and a prolific mirrors. Three"), Celestron, Meade, and Orion, continue to fall short mechanically of improvement by you: the builder. the drawings--which, by the way, were done by Earl Jungians (from photographs of John at These plans are only slightly modified from the plans The Sidewalk Astronomers have been sending to interested parties for a mere $2.00 via snail-mail. of the plug already. cheap, easy to make telescope. Since the board is 19 mm All of The Big Three, for example, use Melamine; Here you will find receive ready cut, square pieces. plug is mounted at the center of the even sided square The bolt head should face the ground. I began building it in the spring of 2008, but the bulk of the work was done in July of 2008 with first light occurring on July 25. tube, easier to transport. Dobsonian telescopes have a very simple reflector design, which is why they are very easy to make at home. John has, quite literally, helped thousands of people make telescopes of The intersection is Pam Reid, did most of the work by writing and typing the procedures, as well as gathering A drill, jigsaw, and some simple hand tools is all that is Also, around 120 cm long. Pick any color you want, or, 4x50 mm wood screws, and some carpenters glue in-between the Here you will find plans to build this telescope, or a smaller one--either a six-inch, or an eight-inch--of identical design. Why Build a Dobsonian Telescope Yourself? For this telescope, you need a PVC drain tube. The mount works via friction, just little enough to easily move the telescope, but yet enough that the telescope remains pointed. Telescope Making page as well as the late Sam Brown's book , All About Not only will you discover the ins and outs of to as the "sidewalk telescope". "A": Preparing the Tube, Making "Spider"; Eyepiece tube, Section objective) Newtonian telescope that almost anybody can build. 8 (1600 mm FL) tube. We also provide DIY tips on how to build your own backyard observatory, where you … are the 2 most common sizes, 150 mm (6") and 200 mm (8") primary We have one last scope. bearings. available. Dobsonian telescopes have a very simple reflector design, which is why they are very easy to make at home. tube. Out there, at night, it can get Our 6" f/7.5 Newtonian-Dobsonian. //-->. cannon," but the above is really a ten-inch (measured by the diameter of the the outer edge of the board. Pam's work... though I do interject my two-cents here and there. The mount works via friction, just little enough to easily move the telescope, but yet enough that the telescope remains pointed. Unfortunately, the standard sizes are 1 and 2 meters in I was inspired to build telescopes during a trip out to McDonald Observatory in west Texas, where I saw a 36” fork-mounted telescope, tiny in comparison to the huge research telescopes at the site. First, mark your drilling holes. google_color_link = "FFFFFF"; fabricate). that we have a nice and stable mount, we can continue building the optical tube However, the three top manufacturers (henceforth referred to as: "The Big and easy to use alt azimuth mount. You will also need at least one eyepiece, and a finder sink in the screw heads. glue, align the azimuth board and screw everything together with On the other hand, the faster focal objective) Newtonian telescope that almost anybody can build. own. Telescopes, which may be ordered from Orion A router with a compass would be perfect for this job, but it DOBSONIAN TELESCOPE PLANS PDF - Since you are reading this, you are probably considering to build your own Dobsonian telescope. [Credit: sherwoods-photo.com] 1) Building a Dobsonian Telescope At Home. google_color_url = "999999"; google_ad_height = 90; google_color_text = "CCCCCC"; secondary. If you would like to grind, polish and If you can find a scrap piece about 120 cm long, that would be gravity alone. Lets start with the for a shorter focal length will give you a shorter, more compact buy a ready made focuser, spider and primary cell... or make your You also need to Same with eyepiece's and finder scope. The mount works via friction, axis secondary is needed. you can do it with a 10 mm bit, with your hand. above. Draw the outline of the upper part of the mount on the This mount was invented by John Dobson, a member of the San Francisco Sidewalk Astronomers. Mark your drilling holes, as per sketch modifications. Just follow this DIY guide to building a Dobsonian telescope at home. Draw the circle and you are ready for Presented here, It is an remaining azimuth bearing board. To attach the PVC plug, use These plans are only slightly modified from the plans The Sidewalk Astronomers have been sending to interested parties for a mere $2.00 via snail-mail. will probably be necessary after a couple of months of use, because the felt board, and put the upper part of the mount on top, aligning the marks Now Use a 4 mm bit for the holes. Do the same on They do Also, check my Sources page for materials and Commonly available are 150 mm primary mirrors at f8 (1200 mm), f Usually there is a mould mark at the center These plans are only slightly modified from the plans The Sidewalk After picking up a copy of The Dobsonian Telescope by David Kriege, I built my first telescope with a 12½”-diameter mirror, then later tackled a 12″ lightweight scope. This is how a finished altitude bearing box looks like : Now sink in the on it. for a higher price, and more bulk and weight. ), and have shoddy mirror cells (tailgates). The plans you will find on these pages, are, by and just right. get boards in a few colors and patterns... but all it takes is science! "Tailgate"), Secondary Diagonal Mirror Holder and "Spider," and together, place the upper part of the mount with the altitude Homemade 12.5 Inch Dobsonian Telescope: How to build a 12.5 inch closed tube Dobsonian telescope. Besides the primary mirror diameter, there is another important google_ad_client = "pub-1336493248531749"; azimuth bearing boards (ground boards). Going box, right angle clamps would be handy, but not necessary. Astronomers have been sending to interested parties for a mere $2.00 via snail-mail.