# SparrowGH - nesting for 2D irregular strip packing

**URL:** <https://discourse.mcneel.com/t/sparrowgh-nesting-for-2d-irregular-strip-packing/217912>\
**Category:** Grasshopper\
**Tags:** nesting\
**Created:** [April 11, 2026, 11:52pm UTC](https://discourse.mcneel.com/t/sparrowgh-nesting-for-2d-irregular-strip-packing/217912 "2026-04-11T23:52:24Z")\
**Posts on this page:** 1\
**Showing post:** 10

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**Author:** ![laurent\_delrieu](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/laurent_delrieu/32/601605_2.png) [@laurent\_delrieu](https://discourse.mcneel.com/u/laurent_delrieu)\
**Post date:** [April 13, 2026, 2:25pm UTC](https://discourse.mcneel.com/t/sparrowgh-nesting-for-2d-irregular-strip-packing/217912/10 "2026-04-13T14:25:22Z")

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Thanks for the tool, I am testing it now on this use case

> [@OpenNest - user feedback](https://discourse.mcneel.com/t/opennest-user-feedback/216372/3):
>
> Hi @Petras_Vestartas I will send you this in DM, 135 pieces of Pat Def table There are sheet of 600 x 600 mm and 400 \* 600 mm. A professional tool gave me this MagPie Nest [image] I didn’t go too deep in Open Nest with this one as I have a very good packing, but I’ll have new jobs and no more access to MagPie. For this type of geometry I began to make some simplification tools (suppress some holes, offset 2 times to smooth …).

I will have to compare to OpenNest and the other paid tool.  
I think I will have to make a tool to nest inside holes. If you implement holes it will become a quite complete tool. It will surely require to have curves in DataTree.

It seems promising but I has lots of timeout (surely no good nest on requested time).  
A bit frustrating after 1000 s (inter bin moves),

 ![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/9/1/8/918bef996453e1a386e318ec1562513a737e5367.png)

The Id and Transform is OK for me as it looks like what I did on some Packing tool in Nautilus. User just have to group curves or others object to apply the transform.

In my use case I also have different sheet size. My laser cutter can’t use 2000 mm x 1000 mm sheets so I use 600 mm x 600 mm and 400 mm x 600 mm.

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_[View the full topic](https://discourse.mcneel.com/t/sparrowgh-nesting-for-2d-irregular-strip-packing/217912)._