MultiPipe options

[sadovshikov (Vitaly Sadovshchikov)]

What do the Segment, KinkAngle and CubeFit parameters of the MultiPipe component mean? Would be best to get an example? It seems they do nothing for my Subd object
MultiPipe.gh (6.1 KB)

[DanielPiker]

Hi @sadovshikov

Please see the examples and linked doc in my reply here

SubD GH to Rhino and Record History

Hi @martynjhogg See this example file MultiPipeGH_examples.gh (107.2 KB) and some brief notes on the inputs: MultiPipeNotes.pdf (477.3 KB) The reason you weren’t seeing any change with those sliders was the value ranges. EndOffset works as a multiple of NodeSize, and there is not enough room along the struts of your shape to offset the first edge loop 16 times the radius away from the node without it crossing over the loop being offset from the other end of the strut. When there is not ro…

[martinsiegrist]

Do you see this when hovering the mouse pointer over an input?

[sadovshikov (Vitaly Sadovshchikov)]

Yes, I do, but looks like my model don’t get “additional edge loops” or I don’t understand the function correctly.

[DanielPiker]

The extra edge loops controlled by Segment only applies to struts which are connecting between nodes. So as your input consists of only a single node it does not apply.

[sadovshikov (Vitaly Sadovshchikov)]

@DanielPiker Thanks for your help! Please tell me, is it possible to get the exact radius at the ends of the pipes? Because, for example, if set NoteSize = 5, and for simplicity StrutSize = 1, the radius at the ends of the pipes will not equal 5 but vary all way along the pipe edge.

[DanielPiker]

SubDs cannot represent exact circles

However, you can generally get as close as needed with increasing levels of subdivision and fitting.
Here’s an example with your geometry
multipipe_circular_ends_radius.gh (19.0 KB)

See also the post here

Are true circular multipipe open ends possible?

Trying to set up a design workflow for fabrication where straight cylindrical parts are combined with multipipe connectors (possibly 3D printed) but it seems that the open ends of multipipes aren’t true circles? Also not clear that multipipe can be used in a way to ensure surface continuity where the cylindrical ends meet multipipe ends. Attached .gh file shows the problem quite clearly… Are true circular Multipipe open ends possible.gh (14.8 KB) Any help appreciated!

[sadovshikov (Vitaly Sadovshchikov)]

Much obliged to you, really!

[lander (CAD CAM CNC)]

@sadovshikov

What do the Segment

@sadovshikov

It seems they do nothing for my Subd object

Same here.

@DanielPiker

Please see the examples and linked doc in my reply here

Hi @martynjhogg See this example file MultiPipeGH_examples.gh (107.2 KB) and some brief notes on the inputs: MultiPipeNotes.pdf (477.3 KB) The reason you weren’t seeing any change with those sliders was the value ranges. EndOffset works as a multiple of NodeSize, and there is not enough room along the struts of your shape to offset the first edge loop 16 times the radius away from the node without it crossing over the loop being offset from the other end of the strut. When there is not ro…

I’m getting zero discernable effect with segement distance.

subD_settings_not working.gh (14.6 KB)

maybe I need to prep the curves to split at the intersections or something…

the kink angle works though, so maybe that’s a loophole for now.

[wim (Wim Dekeyser)]

@lander

maybe I need to prep the curves to split at the intersections

That’s how that works, yes.

[lander (CAD CAM CNC)]

I’m not sure that’s necessary for the workflow I was about to try. But Rhino crashed, so I’ll have to pick up the pieces later.

@wim

That’s how that works, yes.

Looks like you’re right, my trick didn’t work lol.

The kink angle shall suffice for now. Segment distance still had no discernable effect.

Going to make a new thread with a sample file.