Full Version: New Section command

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I'm going to move the discussion on the new Section plug-in over to this thread.

I'll put the latest version here at the top post.

Instructions for installing a plug-in here.

- Michael

Attachments:
Section.zip

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...Can I jump to a big one?

Please please please some form of interactive sectional tool I think every other cad soft has one...Is the general workflow make a plane and intersect? Is that what everyone is doing?

Gracias,

// Rich

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Hi Rich,

> Please please please some form of interactive sectional tool

Give the attached plugin a try, instructions for installing a plugin here


re:
> Is the general workflow make a plane and intersect? Is that what everyone is doing?

I usually draw a line and use Construct > Curve > Project.

- Michael

EDIT: Updated Section tool here (top of this thread):
https://moi3d.com/forum/index.php?webtag=MOI&msg=12071.1

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Seems there is a glitch!
When you press Done start volumes come back and nothing is sectioned!
But maybe i have missed something! :)

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Hi Pilou, often times sectioning tools are used as a type of visual inspection mechanism.

The first draft here is focused on that type of use, I will add in a "create geometry" type option soon if it seems like this is going to work for what Rich was asking for.

- Michael

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Ok sorry not seen that was a wip!

Here a section some heavy! Minutes 2.20

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Hey Michael - amazing (in theory! ;) ) yeah it's just to troubleshoot quickly / show clients how interiors of objects are looking and faces are a great way to do that to showcase solids...I am having some trouble though - it seems the tool fails quite early, (video didn't catch) but at the end of the slider a slice will appear again but majority of geo is just skipped?

Excited for this though so cheers as always

// Rich

Attachments:
MoI 2026-08-07 19-55-31.mp4

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Hi Rich, that's probably actually a bug in Shell in the current beta. For a shell with an internal void cavity and no openings set the "Library" option in the Shell command options to Library: Solids++ for right now. Or select the top face to make an opening there.

Try with the attached file. (updated Section with cutaway option almost ready).



- Michael

Attachments:
RichShell.3dm

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Updated section tool attached.

EDIT: section command attachment at top of this thread here:
https://moi3d.com/forum/index.php?webtag=MOI&msg=12071.1

Instructions for installing a plugin here.

If you want to use a different plane than world XY / XZ / YZ , set the construction plane (View > CPlane) before running.

Looks like this:



- Michael

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Simply Great !!!

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Thank you Michael. This Section plugin is fantastic.

Martin.

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I'm feeling that this Section plugin is such a wicked addition to MoI that it needs some way of snapping to faces and end points ect and/or a way of being able to apply a percentage or exact dimension to the position of the section.
If I had that, then I could produce all sorts of good stuff such as accurate 2D drawings for my CNC machines.

Thanks.
Martin.

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Cool !
What is exactely "Keep geometry" ?

Can we have an option for have a "solid section" even the section is empty ?

Like for a tichkness sphere ?

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Hi Pilou,

re:
> What is exactely "Keep geometry" ?

It will keep the stuff that you see as a regular object after the command ends.


> Can we have an option for have a "solid section" even the section is empty ?

I'm sorry I'm not understanding this part, can you show an example?

Thanks, - Michael

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@Martin,

re:
> some way of snapping to faces and end points ect and/or a way of being able
> to apply a percentage or exact dimension to the position of the section.

I think there is a good spot for a percentage control here:



and I'll experiment with showing a point in the viewport maybe if you drag that you can get snaps.

Thanks,
- Michael

Image Attachments:
MartinSection1.png 

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I don't understand why in case it's a solid section, in the other case that is no solid section ?

https://moiscript.weebly.com/uploads/3/9/3/8/3938813/kub_section.3dm

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Hi Pilou,

re:
> I don't understand why in case it's a solid section, in the other
> case that is no solid section ?

It's because the object is malformed by a bug in the shell command in the current v5 beta when making a shell with an internal void.

When you use shell set Library = "Solids++" for right now or select a face to make an opening.

The attached file should work ok.

- Michael

Attachments:
kub_section2.3dm

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With your file that working fine!

From my personal try the Shell section is working fine with the Solid ++ and no way with the acis ! (for a simple cube)

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Message 12071.19 was deleted

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Hi Martin,

re:
> some way of snapping to faces and end points ect and/or a way of being able
> to apply a percentage or exact dimension to the position of the section.

In the updated version at the top of this thread, you can type in a percentage or
press the small "point" button to pick a point as alternate ways to position the
section in addition to the slider.





- Michael

Image Attachments:
MartinSection2.png 

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