Grasshopper

algorithmic modeling for Rhino

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Comment by FrankS on May 31, 2009 at 11:35am
here we go: hell of a cleanup job ;-)

this was one of my early GH projects and i found out that i did produce quite a mess referencing a lot of points (see layer manager) and that there are some components now marked as "obsolete" due to the fact that the definition was done long before v0.6.

CNC-Lab_Giveaway_V2_GH_Forum_12.zip


hope it is obvious how it works:
basically the trick is one master-crv and a combination of point-mirror and orient to obtain a non-planar crvset consisting of 10 segments: 5 (the evens) on a given pentagon and 5 (the odds) being planar on the neightboring pentagons. extrude-to-pt (to center of sphere), boolean/intersect, offsetSrf/loft will return a solid piece of the puzzle. again some (re-)orienting will return a full sphere.

BTW: since the CNC-Lab Giveaway (as we used to call the puzzle) is non-profit, academic, a challenge and a nice little excersise i don't see a reason for blame someone to steal anything. (unless that someone turns it into something commercial or is faking authorship, of course)
i like the GH forum for being a place were open-minded people share knowledge and contribute a great community. i would spend a lot more time in here if had the time...

speaking of typing hrvatski, mamam pojma, nema ljubavi to help me out ;-) will continue that one later... ;-)

best,
frank
Comment by Ángel Linares on May 31, 2009 at 4:22am
When lot of people think about the same things is perfectly normal that two persons get the same solution to a problem.

I have develop a lot of projects that it was done before by famous architects. I don't think that Ivan copies the work directly. Visual memory sometimes makes you create things that you don't remenbre but are in your memory.

Best Regards.
Comment by Ivan Vuzem on May 31, 2009 at 3:33am
I've been talking to a guy (can't remember his name now), he had some dodecahedron examples on old grasshopper site, maybe it is still here. Been wanting to redo this example with "his" (again, to clarify, those were not his methods, but rather mathematical methods of representing dodecahedron with Cartesian coordinates) solution which seemed much much cleaner than mine, but couldn't find time. It would be nice to see your definition Frank.

@Holger, even if I did catch Franks work on youtube, don't you think recreating something what someone else already did is in a way your own work? Maybe the design or idea is not original, but still someones work? I even saw some recreations of grasshopper demos with posted definitions. I'm guessing you didn't go accusing that guy too?
For what is worth to you, I'm not mad at you, and I understand you, but you must understand me too, a man's gotta stand up for himself when he is accused of something he didn't do, right?

Frank, možda ne govoriš dobro hrvatski, ali ga jako dobro tipkaš. Stvarno sam pomislio da si naš, čestitke. A i čestitam ti i na izboru djevojke, hrvatice su ljepotice ;)
Ja sam odmah pokraj Zagreba, u Zaprešiću. Možda jednom kad ću biti u Berlinu, pokažeš mi svoj rad. Jako me zanima milling a nemam pojma o tome ;)
Comment by FrankS on May 31, 2009 at 2:55am
i will have a look at the definition and post it here. it needs some clean up to be done. i remember the extrusion and trimming to be quite a hack...
i my case, GH generates the complete machining layout. in order to address the 5axis machine we did use cimatron (CAM-software). i am working on outputting NC-code directly out of GH. works already in 3axis...

if you have the chance to stop by in B, i will see if i have the chance to fire up the machine.

i mene je iznenadilo koliko ljudi iz ex-yu je na forumu. you must also have some serious grasshoppin' going on there!
moja prica: ja sam iz njemacke, zivim u berlinu. nazalost govorim jos uvijek jako malo hrvatski ali moja djevojka je iz te male lijepe zemlje.
Od kud si ti?

best,
frank
Comment by Holger on May 30, 2009 at 11:57pm
Hi Ivan,
Franks relaxed personality is a sign of great personality.
While I initially thought that you simply posted his videos and images
under your name I now see that you have at done something yourself too.
As inititial thought and solution are identical to Franks initial work I'm
still having a hard time to believe you haven't seen his solution on youtube before.
My reaction was so harsh because this dynamic sphere division didn't stay just
a little Grasshopper practice but got a product as visible in the video Frank posted.
Comment by Ivan Vuzem on May 30, 2009 at 7:36pm
hi, nice to hear some positive reaction to this matter. You've got some serious grasshoppin' going on there ;)
I tried extrusion too, but couldn't get it to work. Yours looks so good, and the milling, well I can only wish to try that one day :D

baš sam se iznenadio kad sam vidio koliko ovdje ima ljudi iz okolnih ex-yu područja, stvarno mi je drago vidjeti i nekog našeg vani. koja je tvoja priča? :D
vrijeme je ovaj tjedan užasno, hladno je i kišovito, ali kažu od sljedećeg tjedna poboljšanje. Možda se vrate prošlotjedne temperature od 30> ;)
Comment by FrankS on May 30, 2009 at 5:53pm
Comment by FrankS on May 30, 2009 at 5:50pm
hi ivan,

great minds think alike;-)
check this link from to old GH forum:
http://groups.google.com/group/grasshopper3d/browse_thread/thread/e...

BTW i didn't figure this my own, i just set it up in GH. a collegue of mine in berlin came along with the idea and did a first mockup in pro-e. was just curious how to do it in GH. afterall without the 5axis-milling it's only half the fun, isn't it!

http://www.design.udk-berlin.de/CNCLab/Galerie

kakvo je vrijeme u hrvatskoj? slijedeci tjedan sam tamo.
pozdrav, frank
Comment by Ivan Vuzem on May 30, 2009 at 5:13pm
to be honest I don't even know who Frank is. I don't have extensive knowledge in grasshopper, but I most definitely DO NOT EVER BY ANY CIRCUMSTANCES STEAL OTHERS WORK. So, pls next time be careful when you do some accusations. I had an idea, and gave a try at making it in rhino.
Specially for you, I have uploaded both rhino and grass files so you can see for yourself that I've used some primitive methods of recreating this idea, since I don't posses extensive knowledge in grasshopper. And therefore this should be a proof of my own work?
Unless you were referring to the idea of a football ball, then I don't think even Frank made a brake through with that idea either, because it has been invented for some time now...

lopta-dodekaedar_popravak_bez_extruda.zip
Comment by Holger on May 30, 2009 at 4:03pm
Shame on you!
That work is not yours but by Frank Spenling.
Would you please take that offline soon?

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