Update cqgi.rst with a helpful example

[DarthPJB]

After about an hour of googling and picking through the documentation (and cq-editor source) I made a script to automate export into STL format.

I've submitted this as a pull-request in the belief it may benefit others.

On a personal note; a big thank you to everyone on this project; cadquery is the future!

[codecov]

Codecov Report

Merging #711 (677e84a) into master (7546866) will decrease coverage by 0.03%.
The diff coverage is 71.42%.

❗ Current head 677e84a differs from pull request most recent head adb9caa. Consider uploading reports for the commit adb9caa to get more accurate results

@@            Coverage Diff             @@
##           master     #711      +/-   ##
==========================================
- Coverage   94.54%   94.50%   -0.04%     
==========================================
  Files          32       32              
  Lines        7071     7078       +7     
  Branches      766      768       +2     
==========================================
+ Hits         6685     6689       +4     
- Misses        253      255       +2     
- Partials      133      134       +1     

Impacted Files	Coverage Δ
cadquery/occ_impl/shapes.py	92.37% <60.00%> (-0.16%)	⬇️
tests/test_cadquery.py	99.17% <100.00%> (+<0.01%)	⬆️
tests/test_workplanes.py	99.30% <0.00%> (-0.70%)	⬇️

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[adam-urbanczyk]

Thanks! May I ask what is wrong with this example form the docs: https://cadquery.readthedocs.io/en/latest/importexport.html#exporting-stl ?

[DarthPJB]

Thanks! May I ask what is wrong with this example form the docs: https://cadquery.readthedocs.io/en/latest/importexport.html#exporting-stl ?

That example doesn't use the CQGI ~ which is fine if you want to export as part of the CAD-code itself; this example is for a user wishing to batch-process existing cadquery-files without modification.

Quite esoteric perhaps, but useful I hope.

[marcus7070]

Thanks very much @DarthPJB. It's great to see the CQGI area of the docs getting some attention.