Readme

Purpose

A Python library for writing Gerber files.

• The API is much simpler than the Gerber format specification - 8 pages vs 200.
• No need to read the 200 page Gerber format specification.
• All common pad shapes are built-in.
• User-defined pads shapes are easily created.
• 100% compliance with revision 2023.08 of the Gerber Layer Format Specification.
• Conservative, robust output files.
• Risky constructs failing in some buggy applications are avoided.
• Standardized meta information for fabrication, such as which pads are vias.
• Input parameters are checked for compliance with the Gerber spec.
• Stateless input (the gerber_writer takes care of the Gerber states).

Example::

from gerber_writer import DataLayer, Circle, RoundedRectangle

trace_width = 0.127
via_pad = Circle(0.508, 'ViaPad')
IC17_toe = RoundedRectangle(1.257, 2.286, 0.254, 'SMDPad,CuDef')
toe_point = (0, 2.54)
via_point = (5.08, 0)

top = DataLayer('Copper,L1,Top,Signal')

top.add_pad(IC17_toe, toe_point, angle=45)
top.add_trace_line(toe_point, (2.54, 0), trace_width, 'Conductor')
top.add_trace_line((2.54, 0), via_point, trace_width, 'Conductor')
top.add_pad(via_pad, via_point)

with open('gerbers\gerber_writer_example_small.gbr', 'w') as outfile:
    top.dump_gerber(outfile)

.. image:: https://karel-tavernier.github.io/gerber_writer/html/_images/example_small.png :width: 800

Installation

Windows::

$ py -m pip install gerber_writer

Linux::

$ python3 -m pip install gerber_writer

Requirements

• Python 3.9 or higher
• Standard library only.
• OS independent.

License

Apache 2.0 license

Contact

karel_tavernier@hotmail.com