Open Source Nesting

Tips and tricks you want to share with other users. Tutorials, user submitted documentation, etc.

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Husky
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Open Source Nesting

Post by Husky » Mon Aug 01, 2016 11:06 pm

Hi everybody,

if somebody is in need to use an Open Source Nesting Software try SVGnest. http://www.svgnest.com/

It works with svg files which easily can be exported/imported with QCAD Pro. Maybe a suitable solution for occasionally nesting needs.

Husky-2016.07.30-05.png
Husky-2016.07.30-05.png (124.31 KiB) Viewed 11670 times
Husky-2016.07.30-06.png
Husky-2016.07.30-06.png (83.12 KiB) Viewed 11670 times
Note: This tool isn't yet perfect but normally good enough for small cnc projects. Just test it - maybe it suits your needs.
Work smart, not hard: QCad Pro

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andrew
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Re: Open Source Nesting

Post by andrew » Tue Aug 02, 2016 2:11 pm

Thanks Husky, this looks great. I'm sure this will come in handy for CAM users.

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Clive
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Re: Open Source Nesting

Post by Clive » Wed Aug 03, 2016 11:53 am

Thanks Husky for highlighting this useful tool, it is much welcomed :D

Okay here's my test with this and a few important notes:
1. This is a drawing with 101 thumb tacks I wish to laser cut.
Thumb Tacks.dwg
(27.81 KiB) Downloaded 275 times
Thumb Tacs.jpg
Thumb Tacs.jpg (78.47 KiB) Viewed 11627 times
2.After exporting the file to SVG in QCAD the first result is not good, as you can see 'SVG Nest' doesn't like Arcs or Splines :cry:
Arcs and Splines don't work.jpg
Arcs and Splines don't work.jpg (61.47 KiB) Viewed 11627 times
You can see that some of the thumb tacks have the 'domed' head inverted, these are the ones which are splines.

The domed heads which look good are arcs ... but you have to change the whole of the outline to a polyline in QCAD in order to get this result ... if you don't you will get the inverted result!

*Note - if you try to work with a spline and change this to a polyline it doesn't work either (not for me anyway).

3.So currently for the best results when using SVG Nest, use lines, arcs and change to a polyline .. or of course just use polylines in QCAD. The result worked for me.
Use Lines and Polylines only.jpg
Use Lines and Polylines only.jpg (65.75 KiB) Viewed 11627 times
4.Next, export to SVG in QCAD and upload this to the SVG Nest program. Follow the instructions (so simple) and change the configurations as required.
Configuration.jpg
Configuration.jpg (33.66 KiB) Viewed 11627 times
5.This is the result after 4 iterations. Not bad hey 8).
Nesting Complete.jpg
Nesting Complete.jpg (71.83 KiB) Viewed 11627 times
6. Then download your nested SVG file and open up in QCAD and job done :wink:

Once again a big thank you to Husky.
Result.jpg
Result.jpg (65.81 KiB) Viewed 11627 times
Nest Result.dwg
(54.66 KiB) Downloaded 251 times
For the best support please state your operating system, QCAD version and add any supporting DXF/DWG files, screenshots etc...

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Husky
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Re: Open Source Nesting

Post by Husky » Thu Aug 04, 2016 5:53 am

Clive wrote:Once again a big thank you to Husky.
You are more than welcome! :wink:
Work smart, not hard: QCad Pro

kakaronaldo
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Joined: Thu Jan 05, 2017 7:46 am

Re: Open Source Nesting

Post by kakaronaldo » Thu Jan 05, 2017 7:48 am

this is nice...and i agree with the third comment...
http://www.soran.edu.iq

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