tag:blogger.com,1999:blog-4995104313276785476.comments2014-10-05T08:31:39.365-07:00シシおんな - The Shishi GirlKuhttp://www.blogger.com/profile/09264724402803175785noreply@blogger.comBlogger493125tag:blogger.com,1999:blog-4995104313276785476.post-32083925547502504562014-10-05T08:31:39.365-07:002014-10-05T08:31:39.365-07:00Oooh,
Thanks Shishi and Joshua, needed the plans...Oooh, <br /><br />Thanks Shishi and Joshua, needed the plans and math because it's n+1 years since my latest geometry classes. ;)<br /><br />Let's see if it's a friends dog that gets frustrated this time, not them fixing her toys: Denim fabric and heavy duty polyester sawing thread should keep her busy a long time :D<br /><br />Remember to leave enough space for the strengthening stitches and the thing is easiest to put together from 3 piece blocks rotated 180 relative to each other. My sawing machine barely survived.<br /><br />Thanks again!Samppa Tolvanenhttp://www.blogger.com/profile/05455168967176595893noreply@blogger.comtag:blogger.com,1999:blog-4995104313276785476.post-17651243930568063472014-10-04T21:40:07.159-07:002014-10-04T21:40:07.159-07:00bunbun said... shihtzustuffed.blogspot.combunbun said... <a href="http://shihtzustuffed.blogspot.com" rel="nofollow">shihtzustuffed.blogspot.com</a><br />Gerrithttp://www.blogger.com/profile/07945437697501217370noreply@blogger.comtag:blogger.com,1999:blog-4995104313276785476.post-47332850121308717222014-04-17T16:29:40.226-07:002014-04-17T16:29:40.226-07:00Is the dashed line where we should sew?Is the dashed line where we should sew?Anandita Sathyanarayanahttp://www.blogger.com/profile/16157467554361677357noreply@blogger.comtag:blogger.com,1999:blog-4995104313276785476.post-32243974301558565442014-04-12T21:43:40.899-07:002014-04-12T21:43:40.899-07:00Thanks, Joshua! (I'm still keen to see your fu...Thanks, Joshua! (I'm still keen to see your full thesis -- sounds like you knocked the math out of the park!)Kuhttp://www.blogger.com/profile/09264724402803175785noreply@blogger.comtag:blogger.com,1999:blog-4995104313276785476.post-74564406100275821172014-04-12T14:34:06.165-07:002014-04-12T14:34:06.165-07:00Vania,
If you use the 12-piece design (the dodeca...Vania,<br /><br />If you use the 12-piece design (the dodecahedron), here are the formulas for the dimensions of the pentagonal panels:<br /><br /><b>Pentagon Side Length = ball diameter × π ÷ 8.1554<br />Pentagon Radius = ball diameter × π ÷ 9.5872</b><br /><br />Of course, the fabric may stretch a bit. When I made mine with denim, the ball ended up being 2.5% larger than the calculation predicted. If you're picky, you can compensate for that by dividing the result of the formula by 1.025.<br /><br />If you want to make the 6-panel design (a hosohedron/beach ball), the dimensions of the peels are as follows:<br /><br /><b>Peel Width = ball diameter × π ÷ 6<br />Peel Length = ball diameter × π ÷ 2<br />Curve Radius = (W^2 + L^2) ÷ 4W<br />Distance between compass points = 2r – W</b><br /><br />Draw a line equal to the result of the fourth formula and use its two endpoints to position a compass. Adjust the compass to the necessary curve radius and use it to draw the curves from those two points. Or use a computer application such as SketchUp (which is free) and use the endpoints as the centers of two circles. To ensure you drew the peel correctly, measure it and make sure its length is half your target circumference (which is diameter × pi) and its width is equal to the circumference divided by the number of panels you're using.<br /><br />If you want to make a beach ball with more than 6 panels, just substitute the number of panels for the "6" in the first formula. The other three formulas will still work as they are.<br /><br />---JoshuaJoshuacliftojmhttp://www.blogger.com/profile/17733411958526698005noreply@blogger.comtag:blogger.com,1999:blog-4995104313276785476.post-54233282695455853752014-04-12T09:35:07.593-07:002014-04-12T09:35:07.593-07:00Hi Vania!
Boy, that's a good question. If yo...Hi Vania! <br /><br />Boy, that's a good question. If you use the 12-piece pattern, it'll be more stitching, but the pieces will be smaller and all the sides will be straight, so setting up the pattern on the fabric will be simpler. <br /><br />If you use <i>this</i> one (6-piece), you'll have fewer pieces to have to deal with, but each one of them will be bigger, and they'll have a very specific curved sides that you'll need to get right. Regarding how many pieces to use for a large ball if trying this pattern, the answer is always going to be 6. You don't have to add more pieces for a bigger ball, just scale them up in size. (Same rule for the 12-piece.)<br /><br />Personally, I'd go for the 12-piece version. The more colors I can jam into a project the better, so the chance to use 12 different fabrics trumps 6. But that's just me. :3Kuhttp://www.blogger.com/profile/09264724402803175785noreply@blogger.comtag:blogger.com,1999:blog-4995104313276785476.post-12226762354574580312014-04-11T02:10:40.530-07:002014-04-11T02:10:40.530-07:00Hello,
I am trying to make a giant ball.
I am thi...Hello,<br /><br />I am trying to make a giant ball.<br />I am thinking about 50-60cm in diameter.<br /><br />Which pattern would you recommend me to use? This one or the 12 piece one?<br />If you recommend this one, how many pieces do you think I should use?<br /><br />thanks so much!<br /><br />-Vaniavaneeahttp://www.blogger.com/profile/07136659541476013765noreply@blogger.comtag:blogger.com,1999:blog-4995104313276785476.post-18255717942426475782014-03-17T04:38:44.088-07:002014-03-17T04:38:44.088-07:00Do you have a pattern for the saddle?? and how do ...Do you have a pattern for the saddle?? and how do I do the reins??<br /><br />Thank you.<br /><br />TraceyTraceyhttp://www.blogger.com/profile/15384394662658140732noreply@blogger.comtag:blogger.com,1999:blog-4995104313276785476.post-50660229810415125652014-02-25T21:03:58.473-07:002014-02-25T21:03:58.473-07:00Thanks for the reply! I wish you well in your gra...Thanks for the reply! I wish you well in your grad program. I had the same reason for using a circular curve. I just makes sense as I am trying to approximate a sphere. It's also simple.<br /><br />Here is a PDF export of the current draft of my instructional document (http://www.joshuaclifton.com/How%20to%20Make%20Juggling%20Beanbags.pdf). It's 12.4MB due to being 159 heavily illustrated pages. I may not leave it on my server for long as I may someday publish it and I don't want it to travel too widely.<br /><br />By the way, good job on the photography and illustrations in your blog posts. I've only read the two related to making fabric balls, but you take attractive and effective photos of your projects and and I like the design of the text on the illustrations.Joshuacliftojmhttp://www.blogger.com/profile/17733411958526698005noreply@blogger.comtag:blogger.com,1999:blog-4995104313276785476.post-68274984130881539542014-02-24T22:47:38.529-07:002014-02-24T22:47:38.529-07:00Heck yeah, I'm interested in discussing this, ...Heck yeah, I'm interested in discussing this, but damned if I have the time... I'm really sorry, but this is my final semester of a grad program, and I'm up to my ears in other responsibilities. I'd really love to see your master thesis, though. :3 <br /><br />The circular curve just kinda fits my understanding of a three dimensional object... because the seams travel the circumference of the final shape, it made sense to me to make it a portion of a circle rather than a parabolic curve of some sort. If there's math to support that choice, I don't know it, either. ;_;Kuhttp://www.blogger.com/profile/09264724402803175785noreply@blogger.comtag:blogger.com,1999:blog-4995104313276785476.post-22038337878033237802014-02-24T15:59:11.478-07:002014-02-24T15:59:11.478-07:00Hey, I've been working on writing a document g...Hey, I've been working on writing a document giving mathematical definitions of a variety fabric ball designs (specifically for juggling) and I was very glad to find this blog post as it was the first (and so far only) confirmation I have found for my theory for the design of the beach ball (as I call the type of design you're discussing). Commenter Katherine's formula for the radius of the curve of the beach ball panel (or "peel") also helped a lot because I had to use trial-and-error before. Thanks, Katherine!<br /><br />I'm interested in learning where your theory for the shape of the peel comes from. I arrived at the theory empirically and I don't know enough math to prove it. I found an alternate theory recently that does not use a circular curve, but one based on calculating the circumference of a sphere at different latitudes. So far I have found very little information on making beach balls (technically hosohedrons) out of flat panels, and you are the only one who has said to use a circular curve. Some patterns I have seen use what appear to be other curves, or hand-drawn curves, and some even use different width:length ratios. Are you interested in discussing this?<br /><br />By the way, here is the title image for my document that shows SketchUp-generated images of all the designs I have defined (http://www.joshuaclifton.com/CGBalls.jpg), and here are photos of my proof-of-concept balls (http://www.joshuaclifton.com/Samples.jpg). I used the beach ball concept to apply curves to triangles and squares for the spherical tetrahedron, cube, and octahedron. I still don't like that I can't be sure if it is an optimal solution, though.<br /><br />Thanks for the informative blog post!Joshuacliftojmhttp://www.blogger.com/profile/17733411958526698005noreply@blogger.comtag:blogger.com,1999:blog-4995104313276785476.post-60248596315505209172014-01-18T00:58:36.589-07:002014-01-18T00:58:36.589-07:00Cool blog you got here and thank you for the valua...Cool blog you got here and thank you for the valuable information. This is truly a great read for me and definitely be back to read some more. <br /><br />www.n8fan.netaislinnleondalehttp://aislinnleondale.wordpress.com/noreply@blogger.comtag:blogger.com,1999:blog-4995104313276785476.post-42883224694895349632014-01-18T00:50:39.451-07:002014-01-18T00:50:39.451-07:00Cool blog you got here and thank you for the valua...Cool blog you got here and thank you for the valuable information. This is truly a great read for me and definitely be back to read some more. <br /><br />www.n8fan.netaislinnleondalehttp://aislinnleondale.wordpress.com/noreply@blogger.comtag:blogger.com,1999:blog-4995104313276785476.post-51182848807600868222014-01-11T16:51:20.701-07:002014-01-11T16:51:20.701-07:00Wow, people are still finding this site? I feel sp...Wow, people are still finding this site? I feel special. c: Thanks, and hope you get a nice watermelon out of your work!Kuhttp://www.blogger.com/profile/09264724402803175785noreply@blogger.comtag:blogger.com,1999:blog-4995104313276785476.post-15683859536624133482014-01-11T13:37:23.510-07:002014-01-11T13:37:23.510-07:00Yay! I'm going to elongate it to make a waterm...Yay! I'm going to elongate it to make a watermelon. I thought I was going to have to draft it myself!<br /><br />MarthaMartha Murphyhttp://www.blogger.com/profile/02539396507098000692noreply@blogger.comtag:blogger.com,1999:blog-4995104313276785476.post-76781899271556778932013-12-11T00:36:31.748-07:002013-12-11T00:36:31.748-07:00youre all wrong. the situation has gotten far wors...youre all wrong. the situation has gotten far worse. if the rods get exposed to air, im evacuating from colorado and taking my family with me.Jack Feegelhttp://www.blogger.com/profile/09318160413753428537noreply@blogger.comtag:blogger.com,1999:blog-4995104313276785476.post-8964975613620470512013-11-18T22:54:51.406-07:002013-11-18T22:54:51.406-07:00Love your strawberries! I tried the links and they...Love your strawberries! I tried the links and they don't work anymore, anyway I can still get it?Mistyhttp://www.blogger.com/profile/09334749123863250821noreply@blogger.comtag:blogger.com,1999:blog-4995104313276785476.post-89173003349113079272013-10-17T18:41:49.913-07:002013-10-17T18:41:49.913-07:00Glad to be of service. :3Glad to be of service. :3Kuhttp://www.blogger.com/profile/09264724402803175785noreply@blogger.comtag:blogger.com,1999:blog-4995104313276785476.post-50553574496889252962013-10-16T13:35:55.682-07:002013-10-16T13:35:55.682-07:00I was looking for a tutorial like this for so long...I was looking for a tutorial like this for so long. I'm so happy I found this, thank you soooo much! ♥MayuChan ~まゆちゃん~http://www.blogger.com/profile/08306292222693198000noreply@blogger.comtag:blogger.com,1999:blog-4995104313276785476.post-70689614026890258612013-02-16T02:19:47.831-07:002013-02-16T02:19:47.831-07:00thanks for share...thanks for share<a href="http://www.justdetective.com/" title="徵信社" rel="nofollow">.</a><a href="http://www.justdetective.com/" title="徵信" rel="nofollow">.</a><a href="http://www.cool007.org/" title="徵信" rel="nofollow">.</a><br />cityhttp://www.blogger.com/profile/05583017738947703614noreply@blogger.comtag:blogger.com,1999:blog-4995104313276785476.post-88680350888358060302012-12-23T02:45:06.951-07:002012-12-23T02:45:06.951-07:00I knowed it all along >:3 You make a fine gradu...I knowed it all along >:3 You make a fine gradumastudint, yessir. <br /><br />Tempe, eh? Sooooo I should post a very belated postiething poste-haste to Ku House Tuscon, which may are may not receive this perplexing package in the first half of January, Y/N??Nikkihttp://www.blogger.com/profile/00693299619155384001noreply@blogger.comtag:blogger.com,1999:blog-4995104313276785476.post-60495013675420341332012-12-16T21:13:06.684-07:002012-12-16T21:13:06.684-07:00I haven't given up, I've been following yo...I haven't given up, I've been following you on my feed reader since I found you during my soft toy addiction phase. >u<<br /><br />Good luck and best wishes with grad school! What are you taking, if you don't mind my asking?Ellahttp://www.blogger.com/profile/00021120643491954598noreply@blogger.comtag:blogger.com,1999:blog-4995104313276785476.post-31598879486880924602012-10-07T10:05:59.986-07:002012-10-07T10:05:59.986-07:00Chrissie! It's Megan from high school (NOT Me...Chrissie! It's Megan from high school (NOT Megan from college, don't worry). I, too, have been blog-lurkin'. That's awesome about grad school; are you going for an MFA?<br /><br />Incidentally, Blogger wants me to prove I'm not a robot, based on my willingness to type 'squiteat.' Best humanity-proving word EVAH.MEGANhttp://www.blogger.com/profile/02268032648366148443noreply@blogger.comtag:blogger.com,1999:blog-4995104313276785476.post-41896097251790632752012-10-06T07:59:14.563-07:002012-10-06T07:59:14.563-07:00OMG! You're back!! I've been creeping on y...OMG! You're back!! I've been creeping on your blog for ages!! XD<br />Good to see you back in action! :)Ehttp://www.blogger.com/profile/07525684048847972680noreply@blogger.comtag:blogger.com,1999:blog-4995104313276785476.post-56193944192267105782012-10-02T17:18:29.561-07:002012-10-02T17:18:29.561-07:00Yeah, well, 1995 kept my favorite hoodie and got b...Yeah, well, 1995 kept my favorite hoodie and got bleach marks on it. I'm keeping the game. >:lKuhttp://www.blogger.com/profile/09264724402803175785noreply@blogger.com