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how to make a cone shape out of paper

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Question:I am doing this for a chemistry project and I was just wondering how this is done, or are there easy methods in producing a teardrop-shape design/model with just paper. Also, if possible provide one for a sphere as well. Much appreciated, thanks.

Answers:Here are some made out of origami http://www.ulster.net/~spider/teardrop.htm http://members.aol.com/specialfolder/mm_TUVWXYZrect.htm .

Question:I am working on an abstract piece to demonstrate tension for my 3D Design art class, and I need to construct a cone-shaped form using flat panels of acetate (thin clear plastic). The cone does not need to end in a "point" rather, I would prefer it ended in the shape of a small circle, a "cut off top" cone, if you will. Are there any sure-fire ways of making a cone shape using flat panels without just guessing (I don't have an endless supply of acetate, after all!), such as a template or similar? Any and all advice would be appreciated! Thanks! I appreciate my first answerer's detailed instructions! This would probably be a great way to go about making a perfectly conical single piece of plastic, but what i'm going for is to keep the "flat panel" look, like a geodesic dome almost, with metal beams interconnecting them (I have aluminum strips to do so). But again, thank you for your detailed answer!

Answers:Well, that other answer basically says "take the flat sheets and bend them with a torch" which would be a lot safer if you put them in a 240F oven and used gloves, http://www.mikegigi.com/whirljig.htm#ANEMOM but that is not what you asked and the answer is "Sure, calculate the size of a hexagon or more at two heights and use that to make a paper template to cut the plastic" Suppose you wanted a cone that was 8" across at the base and the hole was 1" A hexagon in a circle has six sides with the same length as the radius of the circle, so you would decide on your height, say 10" and on a paper draw two lines 10" apart and a perpendicular between them. On one end line you would mark 2" on either side of the joining line for a total of 4" long - the radius of a cone 8" across. on the other end line, 1/4" on either side, for 1/2" long, the radius of a 1" hole. Now connect the marks from one line to the other so you have a long narrow blunt triangle and use that to cut 6 pieces of plastic to glue together. If you wish, you could make them of paper first to tape up and show that it works. You can make any number of sides this way, but making to a specific size gets trickier - you can use an online calculator to get the length of sides of circumscribed or inscribed polygons for the two different height circles or you can do it graphically if you know how to divide a circle into equal segments or have a CADD program to help.

Question:please help? and please explain it easily so my dumb head can understand.lol. thanks. :)))

Answers:Well, you're going to need 6 sides for a cube. So you need six 3x3 (3 cm by 3 cm) pieces of paper. Cut all of them out and arrange them so they form a cube. If you added more information, I might understand your situation a little better.

Question:I need to do a drafting project by creating a 3D model of whatever I am doing and need to know how to create rectangular prisms, truncated cones, cylinders and other shapes, including tabs

Answers:Origami, the japanese art of folding paper, can be used. But origami often features animals, objects, mythical objects, etc. I suggest you refer to the first answer.

From Youtube

Origami & Paper Crafts : How to Make Paper Geometric Shapes :Making geometric shapes out of paper is a great way to help kids learn geometry, and any shape can be created by folding and cutting paper. Teach children about geometric shapes with instructions from a former middle school art teacher in this free video on paper crafts. Expert: Lynn Reynolds Bio: Lynn Reynolds is a retired middle school art teacher of 34 years with a love for crafts. Filmmaker: Andrew Reynolds

How to roll a Dutch-style cone cigarette (Inside-out method) :This is a tutorial on rolling an inside-out, filter-tipped, cone-shaped (or conical) cigarette. Materials: Papers: I use king size papers, and in this video I'm using Smoking brand "Deluxe" rice papers. Tobacco (or substituted plant matter): I like using high-quality rolling tobacco. By "good", I mean local blends (available at your local tobacconist) or at least some kind of shag. For the filter tip, I use standard 3x5 note cards. Cut a 3/4"x3/4" square. Roll the very edge of it over, then fold it back over making an 'S' shape in the middle. If you simply roll it without the aforementioned tuck, it's vulnerable to unrolling more easily and creating a hole where your tobacco (and possibly burning embers) can be inhaled. It's a rather unpleasant experience. Inside-out technique explained: The inside-out technique serves one primary purpose: to minimize the amount of paper on your cigarette. What difference does it make? Well, your cigarette will burn much more slowly, which makes for a longer, more economical smoking session. The paper burns more quickly than the tobacco, so the more paper used, the more there is to keep it lit, the faster it burns. (Note: If you don't believe me, try a side-by-side comparison. When I did, it proved noticeably slower and more enjoyable.) This video does not intend to teach you the intricacies of rolling your own cigarettes. So don't expect for it to happen instantaneously. Like any other fine motor skill, mastering the art of rolling takes ...