how I got FlatCAM 8.1 working on OS X [a long time ago — see comment thread for lots of good tips from others!]

install_flatcam.sh

brew update
brew install pyqt geos spatialindex
easy_install pip
pip install virtualenv

cd Development/Others\'/
mkdir FlatCAM
cd FlatCAM
virtualenv env
source env/bin/activate
pip install numpy matplotlib rtree scipy shapely simplejson
# copy contents of FlatCAM_8.1.zip into FlatCAM folder
python FlatCAM.py

brew tap tomoyanonymous/flatcam
brew install flatcam-beta

This ^^^^

I did manage to get it working manually under Sequoia using previous instructions, but had a lot of crashes. Terminal was showing a lot of package related errors.

Then I saw thomergil's comment and installed under hombrew.

Works like a charm.

Thanks @thomergil and of course big thanks to @tomoyanonymous

@DeeEmm glad it helped. I stopped using FlatCam. Too buggy and crashy. Depending on what you're trying to do... https://github.com/thomergil/pcb-nomad3

I'm just returning to it to try and overcome some quality issues with making PCBs using my laser.

Burning the mask by converting a raster image in lightburn is not great quality as the image is broken up into scan lines which appear as aliasing in the track outlines. So I figured I'd try using an isolation milling toolpath instead. The only issue is that EasyEDA does not export milling tool paths so I need to convert the gerbers using something like flatcam. I did look at pcb2gcode but I'm on a mac, so options are somewhat limited.

I run pcb2gcode on a Mac. 👍🏻