Before I begin: The place I buy my styrene sheeting from has decided not to offer it to the public (ie: me) anymore. I may be able to arrange buying it directly from the manufacturer, but the minimum I can buy at one time will probably be a lot more than I need (or can afford). Which leaves me with a dilemna, but also an opportunity for those of you out there who may be interested in buying the same kind of plastic that I use in my projects. If you ARE interested, please e-mail me at dietzt@cloudnet.com. (You're not actually ordering the stuff from me yet - I just want to know how many interested parties I would have if I decided to do a mass order of plastic from the manufacturer and offer it to the public myself. I don't know I would have to charge for the plastic yet as I don't know what sort of discounts, if any, I can expect from the manufacturer. I DO know that the sheets are about 4' x 8' in length and height and .020 in gauge--pretty big...)
Oh, one more thing before I start: Cheezit's New Cheesy Sour Cream and Onion Flavor--Blech. Don't try it. (Unless you LIKE the taste of crackers dipped in dill and corn syrup. Yech....)
Okay. On to the tutorial. This is what I'm making:

Axel's Fire Wheels from
Kingdom Hearts 2. Here's what I used to make them:

Some 1/2" PVC pipe, a pair of 1/2" cross pipe couplings, and a PVC pipe cutter. (All of these are available at most big-name hardware stores. You could probably use a regular saw or band saw to cut the PVC pipe, but I find a hand-held pipe cutter more convenient and apartment-friendly.)
You will also need a TON of .020 styrene. Lots of it, since it makes up the bulk of the structure of the prop. You'll also need some scrap pieces/sheets of 6mm craft foam that you can cut into small strips.
(Remember kids, if you want to buy styrene directly from me, see the paragraph above....)
Lay out a sheet of styrene that's at least 4' x 4' Next, take a 10" (or slightly larger) plate and place it in the middle of the sheet. Trace a circle around it.

Next, draw another circle about 1" outside the edge of the first circle. Then take a CD and lay it down at one of the edges of the double-circle. Trace around the CD.

Lift the CD and then draw another circle around the
inside of that circle. Repeat until you have 4 equidistant double circles sitting around the edge of the main circle.
As always, I have provided a picture which will give you some idea of what the heck I'm talking about...

Next, take a plate that's about 6" (or slightly larger) in diameter and place it on the styrene somewhere around the edge. Trace around it and then cut out the circle.

Draw a circle 1" inside from the edge. Cut into the circle and then around the new line you've created. Now you've made a ring. Bend a ridge into the ring as shown:

You'll notice that the ring, once bent, is slightly smaller and has an overlapping edge. (What will you do with the ridged ring? You'll have to wait until next update to find out.)
Have any questions or comments at this point, just let me know...