tag:blogger.com,1999:blog-6261993076995357307.post9167511473232017771..comments2023-11-05T06:16:56.961-05:00Comments on the Carpentry Way: Poly Gone?Anonymoushttp://www.blogger.com/profile/14328401081765407624noreply@blogger.comBlogger7125tag:blogger.com,1999:blog-6261993076995357307.post-83428215608420861352009-10-17T22:29:45.134-04:002009-10-17T22:29:45.134-04:00Hi Mathieu,
nice to hear from you and thanks for ...Hi Mathieu,<br /><br />nice to hear from you and thanks for the encouragement about the book - it's a big undertaking and not likely to make any best-seller lists, but i think it needs to be written. I'll put you on the mailing list for the hopper essay. I should have it ready by mid-November I estimate.<br /><br />By the way, the 'Japanese triangle method' with the sashigane does have a name - kō-ko-gen-hō (the rise-run-length method').<br /><br />~ChrisAnonymoushttps://www.blogger.com/profile/14328401081765407624noreply@blogger.comtag:blogger.com,1999:blog-6261993076995357307.post-85429102135697141692009-10-17T21:38:11.019-04:002009-10-17T21:38:11.019-04:00Hey Chris,
An intresting posts as always. I am hap...Hey Chris,<br />An intresting posts as always. I am happy to hear you are preparing the article about the hopper and I can't wait for it to become available. I am currently figuring out those angles needed for the hopper using only a sashigane and using the 'japanese triangle method' (There is probably a name for this system) to derive angles.<br />Your efforts to share all this information in the way you do is highly appreciated. And I am happy to pay that modest fee for it. To return on my comment in my previous email.<br />I wish you a lot of inspiration and clarity in your work for the comprehensive book you are writing.<br /><br />MathieuMathieuhttps://www.blogger.com/profile/02598299531607920548noreply@blogger.comtag:blogger.com,1999:blog-6261993076995357307.post-11171710910334037952009-10-16T10:35:35.750-04:002009-10-16T10:35:35.750-04:00Matt,
thanks for pointing that out! I always see ...Matt,<br /><br />thanks for pointing that out! I always see my e-mail address in the upper right of the screen when I visit the blog or write, so I assumed every reader could see it too. Wrong! I went into my profile section and discovered there was a box needing a tick-mark. All done -- just click on "View My complete Profile" under my mugshot, and the following page will have a link to my e-mail address.<br /><br />Now I'm wondering if others might have been trying to contact me and had a difficult time finding my address(?) I hope not. Again I appreciate you pointing that out Matt and I also look forward to meeting you at Brookline Library in November.<br /><br />~ChrisAnonymoushttps://www.blogger.com/profile/14328401081765407624noreply@blogger.comtag:blogger.com,1999:blog-6261993076995357307.post-35305692688826388372009-10-16T10:24:55.377-04:002009-10-16T10:24:55.377-04:00gregore',
I thank you again for your comments...gregore',<br /><br />I thank you again for your comments. I also was reminded of a faceted jewel by the octabox form.<br /><br />I'm not sure if you misunderstood my writing however, in terms of solving the layout for the polygon hoppers. I've already done that. I have no need to set up %-ratio charts or such with SketchUp. SketchUp was great for creating the form and playing with the configuration of the boxes. As I mentioned, while I can readily obtain the cut angles from the SketchUp drawing, I prefer to do so instead using 2D drawings that I can complete with the basic geometers equipment. i prefer not to become dependent upon a computer drawing program to solve carpentry problems, and it is a slippery slope.<br /><br />There is no 'kō-ko-gen formula' to figure out for these forms since kō-ko-gen is a method which applies only to 4-sided regular polygons. Since 95+% of carpentry and woodwork involves 4-sided construction which connect in plan at 90˚, it is a highly useful method to have in the arsenal. For other polygons, like the two I showed in the post above, which connect at other exterior angles (108˚ in the case of the pentagon, and 135˚ in the case of the octagon), other drawing techniques must be employed. kō-ko-gen does not work for other polygons. These polygon drawing techniques also work for 4-sided work, and in some cases involve similar drawing methods, however, all in all, kō-ko-gen is an easier method to remember so it is the one I choose for 4-sided work.<br /><br />And Paul,<br /><br />glad to hear you are enjoying the blog, and I'll put you first on the list for the initial carpentry drawing essay on hoppers. I appreciate your interest.<br /><br />~ChrisAnonymoushttps://www.blogger.com/profile/14328401081765407624noreply@blogger.comtag:blogger.com,1999:blog-6261993076995357307.post-81070198165611506992009-10-16T10:11:35.444-04:002009-10-16T10:11:35.444-04:00Hi Chris,
I've been unable to (easily) find y...Hi Chris,<br /><br />I've been unable to (easily) find your email address on this site... Could you point me in the right direction? I'm definitely interested in the articles you're putting together, and I look forward to catching your presentation in Brookline on November 7. <br /><br />Thanks for all the great work,<br />MattUnknownhttps://www.blogger.com/profile/10317542451624470183noreply@blogger.comtag:blogger.com,1999:blog-6261993076995357307.post-71442638498592620852009-10-16T02:31:50.836-04:002009-10-16T02:31:50.836-04:00Chris:
Being an avid user of Japanese Woodworking...Chris:<br /><br />Being an avid user of Japanese Woodworking tools, thoroughly enjoy the blog. Definitely I am interesed in the hopper essay and the book whenever it is finished!<br /><br />Please let me know as soon as the first of them are ready for distribution.<br /><br />Thanks,<br /><br />Paul Phelps<br />plphlps@gmail.comPfelpshttps://www.blogger.com/profile/04205758996385833639noreply@blogger.comtag:blogger.com,1999:blog-6261993076995357307.post-3673589987771919892009-10-16T01:50:40.752-04:002009-10-16T01:50:40.752-04:00" little gem" is the perfect words.... t..." little gem" is the perfect words.... the octagonal hopper is a very familiar shape to me as it is the shape of a tapered bezel for emerald cut gemstone . i make them all the time in my work though i would say a tinny bit smaller than your noodle box. usually i make them in the range of about 15mm x 10mm by 8mm deep some times the parts get so small that the on the corner pieces the inside surface will be less than 1mm at the top tapering to nothing at the bottom . <br />i can not bring any ideas to help from the jewellery field as i have to do it with out any gages as the parts are to small for any layout. does sketch up allow you to drag your angles of your taper and have all your parts auto change to the new angles? ( its called history in some programs) if so you may be able to figure out some % ratio for each angle increase or decrease. then you could make a chart. or you could really dive into the bottomless well and try to come up with your own trig/ko-ko-gen math formula .gregore'http://www.gregorejoailliers.comnoreply@blogger.com