I can do cylinders and circles all day long. What kicks my tail is cones.
Paul M. ----- Original Message ----- From: "jleslie48" <[email protected]> To: "Papermodels II" <[email protected]> Sent: Tuesday, March 24, 2009 5:36 AM Subject: [Papermodels II 35220] Re: Need help with how to measure correctly... > > from http://jleslie48.com/faq.html : > > ... > Now, think about a cylinder, it has a height, and if you look at it > from the top, it is a circle. Now take a pair of scissors and slice up > the side, It unrolls into a rectangle. one set of sides of the > rectangle are the height of the cylinder, and the other sides have a > relationship to the diameter of the recently destroyed circle. Back to > Ms Hinchleys class, the side in question represents the CIRCUMFERENCE > of the circle, which has the formula, > > circumference= 2(pi)Radius = (pi)Diameter where > > pi is a very specific value approximately 3.1415. We'll skip the > discussion on where the 3.1415 came from, but trust me on this. Well > now the cylinders of a rocket, at any scale, in any unit of measure > are a mere mathematical calculation away. With MS Word, I can now make > the circles and rectangles exactly those dimensions, and,... > > > > > > On Mar 23, 11:00 pm, abbe <[email protected]> wrote: >> Hi All, >> I'm kind of new to this and need some help. I am trying to make a >> straight piece so I can put it around a circle (like how a drum would >> look)- can you tell me how I should mathematically measure this >> please? Anyone know? I remember that it's a formula of some sort- just >> forgot what it was. Thanks ahead of time. Also, I am creating a hand >> our of paper and it's not going to well I am having problems >> determining how to measure for some of the fingers? Anyone have any >> suggestions? Hope someone will have some very good advice for me here. >> Thanks so much! >> abbe > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Papermodels II" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/Papermodels?hl=en -~----------~----~----~----~------~----~------~--~---
