# Unroll/explode volume properly ?!

**URL:** <https://discourse.mcneel.com/t/unroll-explode-volume-properly/22904>\
**Category:** Rhino for Windows\
**Created:** [July 25, 2015, 3:50pm UTC](https://discourse.mcneel.com/t/unroll-explode-volume-properly/22904 "2015-07-25T15:50:19Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![tugba\_kogut](https://avatars.discourse-cdn.com/v4/letter/t/8baadc/32.png) [@tugba\_kogut](https://discourse.mcneel.com/u/tugba_kogut)\
**Post date:** [July 25, 2015, 3:50pm UTC](https://discourse.mcneel.com/t/unroll-explode-volume-properly/22904/1 "2015-07-25T15:50:20Z")

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Hey

So I try to unroll a volume (object) (see file: problem) but I can’t do it correctly so that all surfaces matches the surfaces like it should… How can I do it properly? I also tried with labels but nope :/…  
Also the teacher asked to unroll it by copying two linked polyhedra and deploy them etc… Can someone please help me with this? [problem.3dm](https://global.discourse-cdn.com/mcneel/uploads/default/original/3X/8/f/8f5ff90f27ec395a286390ce7288a1cde585043b.3dm) (276.2 KB)

This is the unrolled PDF of my teacher… [example\_teacher.pdf](https://global.discourse-cdn.com/mcneel/uploads/default/original/3X/f/1/f1ad2d8e49e6dd6ff65c7ad28b562fc5bfa7e576.pdf) (45.8 KB)

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**Author:** ![pascal](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/pascal/32/479395_2.png) [@pascal](https://discourse.mcneel.com/u/pascal)\
**Post date:** [July 25, 2015, 3:59pm UTC](https://discourse.mcneel.com/t/unroll-explode-volume-properly/22904/2 "2015-07-25T15:59:45Z")

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That may turn out to be tricky- you’ll need to decide exactly which edges you would like to keep connected, then UnJoinEdge the others… and hope for the best.

@tugba_kogut see if this does it- use ShowEdges \> Naked to see which edges are unjoined.  
[problemPG.3dm](https://global.discourse-cdn.com/mcneel/uploads/default/original/3X/c/9/c91d928aefca8e05ced2a44250a5e308dd7ace3e.3dm) (179.3 KB)

-Pascal

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**Author:** ![tugba\_kogut](https://avatars.discourse-cdn.com/v4/letter/t/8baadc/32.png) [@tugba\_kogut](https://discourse.mcneel.com/u/tugba_kogut)\
**Post date:** [July 25, 2015, 4:12pm UTC](https://discourse.mcneel.com/t/unroll-explode-volume-properly/22904/3 "2015-07-25T16:12:42Z")

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😣

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**Author:** ![tugba\_kogut](https://avatars.discourse-cdn.com/v4/letter/t/8baadc/32.png) [@tugba\_kogut](https://discourse.mcneel.com/u/tugba_kogut)\
**Post date:** [July 25, 2015, 4:35pm UTC](https://discourse.mcneel.com/t/unroll-explode-volume-properly/22904/4 "2015-07-25T16:35:19Z")

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Okay did that but none edges are unjoined?

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**Author:** ![pascal](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/pascal/32/479395_2.png) [@pascal](https://discourse.mcneel.com/u/pascal)\
**Post date:** [July 25, 2015, 4:36pm UTC](https://discourse.mcneel.com/t/unroll-explode-volume-properly/22904/5 "2015-07-25T16:36:45Z")

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![](https://global.discourse-cdn.com/mcneel/uploads/default/original/3X/c/8/c8b5f38a168413201fb63ef0fe2b3d66ded5e6a7.png)

-Pascal

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**Author:** ![tugba\_kogut](https://avatars.discourse-cdn.com/v4/letter/t/8baadc/32.png) [@tugba\_kogut](https://discourse.mcneel.com/u/tugba_kogut)\
**Post date:** [July 25, 2015, 4:48pm UTC](https://discourse.mcneel.com/t/unroll-explode-volume-properly/22904/6 "2015-07-25T16:48:55Z")

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If I do it, it looks like this

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**Author:** ![tugba\_kogut](https://avatars.discourse-cdn.com/v4/letter/t/8baadc/32.png) [@tugba\_kogut](https://discourse.mcneel.com/u/tugba_kogut)\
**Post date:** [July 25, 2015, 6:29pm UTC](https://discourse.mcneel.com/t/unroll-explode-volume-properly/22904/7 "2015-07-25T18:29:19Z")

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I used your jpg and it is really helpful! But when I use the command showedges-naked nothing happens but showedges-all works and I need to see which surfaces inside are unjoined