The 8 inch Telescope, Time and Money
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Grinding
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Polishing
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Telescope Making | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Money
It is presumed you have a few tools. Hand saw, hammer a few drill bits, wood chisel.
For power tools an electric drill, a 8 inch circular saw, a small reciprocating saber saw, a small belt sander and a small bench grinder. Plus eye protection glasses. If you have an accident this project can get expensive fast!
If you do not have a circular saw and don't know anything about it I suggest you find a small local cabinet shop to saw the parts for you to assemble.
If you live in an area where telescope making classes are available then take advantage of that opportunity. Even if you do not follow their program exactly they will have many of the materials you will need. Also see the Supplies page. Prices rounded to nearest dollar.
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The total is somewhat approximant. You may have some of the materials already. The minimum of some materials is enough for two telescopes so if you are working with another telescope maker it can be a saving.
Note on eyepieces
I don't pretend to be an expert on eyepieces. My feeling is that you are better with one or two good eyepieces than a set of crummy eyepieces. Even with a set of good eyepieces you will find you almost always just use one or two of them. The Barlow is not a sacrifice way to get high power. The Barlow / low power eyepiece combination gives more eye relief than a high power eyepiece alone. If you want two eyepieces with the Barlow then chose focal lengths that are not two to one ratios. If you bought an 11 mm eyepiece that would be the same as the 22 mm with the Barlow. If you want two then get a 30 mm and a 20 mm for instance. Then you will have 30 mm, 20 mm, 15 mm equivalent and 10 mm equivalent. Shorter ( more powerful ) eyepieces will only be useful in unusually good seeing conditions. And remember the telescope we built won't track so with high power we will spend a lot of time at the finder scope. Did you want a good finder scope? Add another $60 or so.
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