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";
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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
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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.