Here are links to the various parts used in the tutorial on how to make an eight inch newtonian telescope.

Quikrete Concrete Forming Tube 10 " Dia X 4 ' L

Try to buy this at a home improvement store so you don't have to pay the very high shipping costs.

Orion 13031 Basic 1.25-Inch Rack-and-Pinion Telescope Focuser

Basic focuser. And this is the exact one that I purchased from Amazon.

This is a good first eyepiece to get. It is inexpensive and low power. And the low power is very good for a beginner. It will make good use of a home made telescope and give you a wide field of vision which makes it easier for you to find things in the night sky. This particular eyepiece gives my eight inch newtonian a magnification of 36. (On amazon here 1.25 inch and 20mm)

If you are building the eight inch mirror telescope just as I have done. It uses the 10" quikrete tube. Then this is the exact mirror set you want to buy! And it is at a great price. On amazon! You get the 8" Mirror and the appropriate secondary mirror.
(203mm = 8")

Telescope Mirror Set - 203mm Primary & 100mm X 70mm Secondary Mirrors

You Can also get the same properties and size mirror with diagonal on ebay here:

203 mm mirror with secondary

3M 402 Bondo 857 ml Fiberglass Resin

Bondo 488 Fiberglass Mat

3M Paint Project Respirator, Medium

Parts List and Tools:

• The Primary Mirror (8 inch) Telescope Mirror Set - 203mm Primary & 100mm X 70mm Secondary Mirrors
• The Focuser (1.25 inch) Orion 13031 Basic 1.25-Inch Rack-and-Pinion Telescope Focuser
• The Secondary Mirror (Comes included with the primary mirror above)
• An Eyepiece (here: 1.25 inch and 20mm)
• The remaining common parts:
• 1 quart of fiberglass mix, this includes the resin and the hardener
• 1 square yard of fiberglass cloth. I used very light weight. No need for heavy weight. That is for boat making. Light weight is sufficient and cheaper.
• The tube - 10 inch quikrete tube that is 48 inches long (Quikrete Concrete Forming Tube 10 " Dia X 4 ' L)
• 1 piece of 1/2 inch plywood 2'x2'
• For the diagonal mirror:
• 18 inches of threaded rod - 8-32
• nine 8-32 nuts for the threaded rod
• 1 piece of one inch diameter dowel that is 2 inches long
• For the Mirror mount:
• 3 brass flat head bolts that are 1/4-20 and 3 inches long (Brass is optional but they have to be flat head bolts
• 3 1/4-20 wing nuts
• 9 1/4-20 flat washers
• 3 1/4-20 hex nuts
• 3 springs that will slide over the 1/4-20 bolts. About 1 inch in length. You can get a bag of various springs cheap. Or you can get one long spring and cut it into three pieces.
• 4 wood screws to attach the mirror mount to the tube (can vary in size)
• For the Focuser:
• 4 bolts that are one inch long and 6-32 thread
• 4 nuts (6-32)
• 4 flat washers (6-32)
• 3 small pieces of sheet metal
• 3 small pieces of cloth or velcro
• Paint:
• Flat black for inside of tube
• Your choice of color for outside of tube. I chose red.

Tools, Drills etc

• Saw to cut the tube and the wood with. You are going to need some kind of power saw to cut the disk circles. A jigsaw or bandsaw will be good for this.
• A couple of screwdrivers for the various nuts and bolts
• A couple of wrenches for the various nuts
• 2 inch hole saw
• Various drill bits to create clearance holes
• A respirator, latex gloves and long sleeve shirt if you are going to fiberglass your telescope tube - The respirator will cost you about 25 dollars.