Page 1 of 1

Open Source Nesting

Posted: Mon Aug 01, 2016 11:06 pm
by Husky
Hi everybody,

if somebody is in need to use an Open Source Nesting Software try SVGnest.

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 (124.31 KiB) Viewed 22453 times
Husky-2016.07.30-06.png (83.12 KiB) Viewed 22453 times
Note: This tool isn't yet perfect but normally good enough for small cnc projects. Just test it - maybe it suits your needs.

Re: Open Source Nesting

Posted: Tue Aug 02, 2016 2:11 pm
by andrew
Thanks Husky, this looks great. I'm sure this will come in handy for CAM users.

Re: Open Source Nesting

Posted: Wed Aug 03, 2016 11:53 am
by Clive
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 624 times
Thumb Tacs.jpg
Thumb Tacs.jpg (78.47 KiB) Viewed 22410 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 22410 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 22410 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 (33.66 KiB) Viewed 22410 times
5.This is the result after 4 iterations. Not bad hey 8).
Nesting Complete.jpg
Nesting Complete.jpg (71.83 KiB) Viewed 22410 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 (65.81 KiB) Viewed 22410 times
Nest Result.dwg
(54.66 KiB) Downloaded 582 times

Re: Open Source Nesting

Posted: Thu Aug 04, 2016 5:53 am
by Husky
Clive wrote:Once again a big thank you to Husky.
You are more than welcome! :wink:

Re: Open Source Nesting

Posted: Thu Jan 05, 2017 7:48 am
by kakaronaldo
this is nice...and i agree with the third comment...

Re: Open Source Nesting

Posted: Sat May 04, 2019 3:50 am
by Husky
Another open source nesting software: Deepnest

In short: Offline software, available for Windows, Mac and Linux. It can read DXF, SVG and Corel CDR files and it can write DXF and SVG files.

I'm still testing it but till now ..... I like it! :wink:
Check it out by yourself: