How to make an Twinkie?

Hello Hoppers!

i tried to figure out how the "production" background works, because the mathematical is to hard for me:

Its a rectangle twisted 180° and extruded around a curve. Then to extrude it around a curve, always normal to the curve.

But i have no idea how to start :( its my first project in GH. Please Help!

Replies to This Discussion

Permalink Reply by Florian Frank on October 29, 2013 at 9:12am

Hi Zeiman,

look at this definition.

You have to repeat the last plane and orient in order to close the moebius. The rest is pretty much right. I've added a classic moebius strip part so you can evaluate it.

Best regards,

Attachments:

splineKopie_ff.gh, 17 KB

Permalink Reply by JS on November 8, 2013 at 3:56pm

Hello Zeiman, I'm trying to follow along on this topic to learn. How did you make this curve?

Permalink Reply by Florian Frank on October 29, 2013 at 3:45pm

It's all in the definition. Take a look at it. I've used ListItem and Insert components to do so.

cheers

Permalink Reply by Simon Sez on October 30, 2013 at 1:29am

made another change, but i still dont know what i did ... but its not accurate... :(

Permalink Reply by Florian Frank on October 30, 2013 at 2:45am

Hey Zeiman,

please send me the latest definition of yours, and i'll try to fix it. Just looking at the pictures it's difficult to say what's wrong exactly. Might be that the profile isn't centered and hasn't two symmetries ect...let's see the definition.

Best regards,

Permalink Reply by Florian Frank on October 30, 2013 at 4:56am

Here is the way this can be adjusted. The problem is, that you're not using a flat rail curve as the circle is from the classic moebius torus.

Yours is a freeform rail and so the perpendicular frames are aligned to the curves direction. The rotation along the z-axis of each frame isn't doing a complete 1PI turn during the curve domain. So i've added a slider to the range of a complete turn and it will do a 0.6 PI turn ... and the result is this:

Cheers,

Attachments:

splineKopie_ff2.gh, 13 KB

Permalink Reply by Florian Frank on November 1, 2013 at 3:09pm

You're welcome. Of course it's not easy the first time, but it's worth it.

Permalink Reply by Florian Frank on November 4, 2013 at 9:04am

Hi Zeiman,

now there shouldn't be any more wishes. I've added an automated angle adjustment and the edges will be extracted and rebuilt so they build proper and closed pipes.

Take a look at this:

Attachments:

mob_anySpline_FF.gh, 59 KB

Permalink Reply by Florian Frank on November 8, 2013 at 2:33am

Hi Zeiman,

I've looked at your last files but i don't really get the point of this issue. What do you want to do with this thing in the end? Do you use it to make any physical model?

Do you wan't to have 4 identical pieces, which build this "moebius"? If so it's clear, that the curve has to be symmetrical in 2 axis. Please define any further what's your desired result and i can guide you the direction / help you with some definitions.

Cheers

Permalink Reply by Florian Frank on November 27, 2013 at 2:46am

Hey Zeiman,

this looks great. i'm amazed by the scale of your work. What's the material. Didn't expect such a big and well detailed moebius ;-) great work. compliments.

Permalink Reply by Florian Frank on November 27, 2013 at 2:52am

i thought it's looks like aluminium, but wouldn't believe. hihi

3d bent...mhhhh :-D looking forward for a video documentary

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