topic Re: Two-turn Möbius strip in Fusion Design, Validate & Document Forum

Two-turn Möbius strip

kandennti — Thu, 18 Mar 2021 00:59:24 GMT

Hey everyone.

A Möbius strip is made by twisting the rectangular sides 180° and attaching the ends to each other.

If you turn it around twice and attach the ends, it will look like this.

As it is, there is a self-intersection.
If you drill a hole to remove the interference, it will look like this.

I have created an add-in to create this shape.

https://github.com/kantoku-code/Fusion360_Two-turn_Mobius_strip

It may not be useful for your design.
However, you may enjoy it for a little while.

I carved this out of chemical wood.

Re: Two-turn Möbius strip

TrippyLighting — Thu, 18 Mar 2021 15:32:43 GMT

Very nice work!

Re: Two-turn Möbius strip

JeromeBriot — Fri, 19 Mar 2021 08:24:56 GMT

Bravo !

@kandennti wrote:

I carved this out of chemical wood.

Can you give us more information about this process?

Re: Two-turn Möbius strip

JeromeBriot — Fri, 19 Mar 2021 09:11:44 GMT

I think you should add the ConstructionPoints filter to the SelectedCommandInput object so we can directly select the origin without creating a sketch first.

In MobiusStripCore.py:

_point = SelectionCommandInputHelper( 'pointIpt', lm.sLng('Center Point'), lm.sLng('Select Sketch Point'), ['SketchPoints', 'ConstructionPoints'])

Re: Two-turn Möbius strip

kandennti — Fri, 19 Mar 2021 14:20:03 GMT

Thank you @TrippyLighting .

It won't help you, but I think you will enjoy it.

I forgot to attach the video.

Re: Two-turn Möbius strip

kandennti — Fri, 19 Mar 2021 14:22:36 GMT

Thank you@JeromeBriot .

Since my company only has a 3-axis machining center, I divided it into 5 pieces, machined them, and glued them together.

https://kantoku.hatenablog.com/entry/2021/03/17/084849
I'm thinking of a way to machine it without splitting it, but I can't come up with a good idea.

Re: Two-turn Möbius strip

kandennti — Fri, 19 Mar 2021 14:23:35 GMT

@JeromeBriot .

The reason why I used only points in the sketch is because I needed the direction of the plane. That's why I couldn't use ConstructionPoints as a filter.

Re: Two-turn Möbius strip

TrippyLighting — Fri, 19 Mar 2021 15:09:04 GMT

I completely skipped over the fact that you created a plugin. Incredible!

As you also made the "thing" this really captures the essence of Fusion 360!