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13 changes: 13 additions & 0 deletions .gitignore
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# Ignore python files
__pycache__

# Ignore dev kicad files
*.kicad_pcb*
*.pro
fp-info-cache

# Ignore VS Code
.vscode

# Ignore build
build
21 changes: 21 additions & 0 deletions LICENCE
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MIT License

Copyright (c) 2020 Jan Mrázek

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
8 changes: 8 additions & 0 deletions Makefile
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.PHONY: doc

doc: doc/panelization.md

doc/panelization.md: kikit/panelize.py scripts/panelizeDoc.py
PYTHONPATH=`pwd` python3 scripts/panelizeDoc.py > $@
44 changes: 44 additions & 0 deletions README.md
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# KiKit - Automatization for KiCAD

KiKit is a Python library and CLI tool to automate several task in standard
KiCAD workflow like:

- panelization of the boards
- exporting manufacturing data

![KiKit Promo](doc/resources/promo.jpg)

## Why Should I Use It?

Everything KiKit does can be also done via Pcbnew in KiCAD. But you have to do
it manually. One of the common scenarios is creation of panels. Most of the
tutorials on the internet guide you to use the "append board" functionality of
Pcbnew. However, this approach labour-intensive, error-prone and whenever you
change the board, you have to do it again.

With KiKit you just call a CLI command if you have a simple layout (e.g., grid)
or write few Python instructions like "place board here", "add bridge here",
"separate boards via mouse bites/v-cuts" and you are done. The process is
repeatable and actually much simpler than hand-drawing the panels. KiKit also
allows you to easily export all the Gerbers in a single step.

You can then write a Makefile and simply call `make` to get all your
manufacturing data.


See [BatteryPack](https://github.com/RoboticsBrno/RB0002-BatteryPack) as an
example usage of KiKit.

## Feature List

- create panels by appending boards and pieces of substrate (bridges)
- easily create mouse-bites/V-CUTS
- compared to hand-creation of panels, your panels will pass DRC (as tracks from
different instances of the same board have distinct nets when using KiKit)
- if you have multiple boards in a single file, you can split them
- automated export of gerber files

## How To Use It?

Read the [CLI documentation](doc/cli.md) and the [panelize
documentation](doc/panelize.md).
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# KiKit CLI interface

108 changes: 108 additions & 0 deletions doc/panelization.md
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# Panelization

When you want to panelize a board, you are expected to load the `kikit.panelize`
module and create an instance of the `Panel` class.

All units are in the internal KiCAD units (1 nm). You can use functions `fromMm(mm)` and
`toMm(kiUnits)` to convert to/from them (synopsis below). You are also encouraged to use
the functions and objects the native KiCAD Python API offers, e.g.: `wxPoint(args)`, `wxPointMM(mmx, mmy)`, `wxRect(args)`, `wxRectMM(x, y, wx, wy)`.



## Panel class

Basic interface for panel building. Instance of this class represents a
single panel. You can append boards, add substrate pieces, make cuts or add
holes to the panel. Once you finish, you have to save the panel to a file.
```
appendBoard(self, filename, destination, sourceArea=None, origin=Origin.Center,
rotationAngle=0, shrink=False, tolerance=0)
```
Appends a board to the panel.

The sourceArea (wxRect) of the board specified by filename is extracted
and placed at destination (wxPoint). The source area (wxRect) can be
auto detected if it is not provided. Only board items which fit entirely
into the source area are selected. You can also specify rotation. Both
translation and rotation origin are specified by origin. Origin
specifies which point of the sourceArea is used for translation and
rotation (origin it is placed to destination). It is possible to specify
coarse source area and automatically shrink it if shrink is True.
Tolerance enlarges (even shrinked) source area - useful for inclusion of
filled zones which can reach out of the board edges.

Returns bounding box (wxRect) of the extracted area.
```
save(self, filename)
```
Saves the panel to a file.
```
appendSubstrate(self, substrate, filletRadius=0)
```
Append a piece of substrate to the panel. Substrate can be either wxRect
or Shapely polygon. Newly appended corners can be rounded by specifying
non-zero filletRadius.
```
makeGrid(self, boardfile, rows, cols, destination, sourceArea=None, tolerance=0,
radius=0, verSpace=0, horSpace=0, verTabWidth=0, horTabWidth=0,
outerVerTabThickness=0, outerHorTabThickness=0)
```
Creates a grid of boards (row x col) as a panel at given destination
separated by V-CUTS. The source can be either extract automatically of
from given sourceArea. There can be a spacing between the individual
board (verSpacing, horSpacing) and the tab width can be adjusted
(verTabWidth, horTabWidth). Also the user can control whether append the
outer tabs (e.g. to connect it to a frame) by setting outerVerTabsWidth
and outerHorTabsWidth.

Returns a tuple - wxRect with the panel bounding box (excluding
outerTabs) and a list of cuts (list of lines) to make. You can use the
list to either create a V-CUTS via makeVCuts or mouse bites via
makeMouseBites.
```
makeTightGrid(self, boardfile, rows, cols, destination, verSpace, horSpace,
slotWidth, width, height, sourceArea=None, tolerance=0, radius=0,
verTabWidth=0, horTabWidth=0)
```
Creates a grid of boards just like `makeGrid`, however, it creates a
milled slot around perimeter of each board and 4 tabs.
```
makeFrame(self, innerArea, width, height, offset, radius=0)
```
Adds a frame around given `innerArea` (`wxRect`), which can be obtained,
e.g., by `makeGrid`, with given `width` and `height`. Space with width
`offset` is added around the `innerArea`.
```
makeVCuts(self, cuts)
```
Take a list of lines to cut and performs V-CUTS
```
makeMouseBites(self, cuts, diameter, spacing)
```
Take a list of cuts and perform mouse bites.
```
addNPTHole(self, position, diameter)
```
Add a drilled non-plated hole to the position (`wxPoint`) with given
diameter.

## Examples

### Simple grid

The following example creates 3 x 3 grid of boards in a frame separated by V-CUTS.

```
panel = Panel()
size, cuts = panel.makeGrid("test.kicad_pcb", 4, 3, wxPointMM(100, 40),
tolerance=fromMm(5), verSpace=fromMm(5), horSpace=fromMm(5),
outerHorTabThickness=fromMm(3), outerVerTabThickness=fromMm(3),
verTabWidth=fromMm(15), horTabWidth=fromMm(8),
radius=fromMm(1))
panel.makeVCuts(cuts)
# alternative: panel.makeMouseBites(cuts, diameter=fromMm(0.5), spacing=fromMm(1))
panel.makeFrame(size, fromMm(100), fromMm(100), fromMm(3), radius=fromMm(1))
panel.save("out.kicad_pcb")
```

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42 changes: 42 additions & 0 deletions kikit/defs.py
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from enum import Enum, IntEnum

# These classes miss in the exported interface

class Layer(IntEnum):
B_Adhes = 32
F_Adhes = 33
B_Paste = 34
F_Paste = 35
B_SilkS = 36
F_SilkS = 37
B_Mask = 38
F_Mask = 39
Dwgs_User = 40
Cmts_User = 41
Eco1_User = 42
Eco2_User = 43
Edge_Cuts = 44
Margin = 45
B_CrtYd = 46
F_CrtYd = 47
B_Fab = 48
F_Fab = 49

class STROKE_T(IntEnum):
S_SEGMENT = 0
S_RECT = 1
S_ARC = 2
S_CIRCLE = 3
S_POLYGON = 4
S_CURVE = 5

class EDA_TEXT_HJUSTIFY_T(IntEnum):
GR_TEXT_HJUSTIFY_LEFT = -1
GR_TEXT_HJUSTIFY_CENTER = 0
GR_TEXT_HJUSTIFY_RIGHT = 1

class EDA_TEXT_VJUSTIFY_T(IntEnum):
GR_TEXT_VJUSTIFY_TOP = -1
GR_TEXT_VJUSTIFY_CENTER = 0
GR_TEXT_VJUSTIFY_BOTTOM = 1

26 changes: 26 additions & 0 deletions kikit/doc.py
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import inspect

def header(func):
signature = inspect.signature(func)
args = [str(k) if v.default is inspect.Parameter.empty else str(k) + "=" + str(v.default)
for k, v in signature.parameters.items()]
currentLine = func.__name__ + "("
lines = []
indent = " " * (len(func.__name__) + 1)
separator = ""
for arg in args:
newLine = currentLine + separator + arg
if len(newLine) > 80:
lines.append(currentLine + separator)
currentLine = indent + arg
else:
currentLine = newLine
separator = ", "
lines.append(currentLine + ")")
return("\n".join(lines))

def printHeader(func):
print("```\n" + header(func) + "\n```")

def printHelp(x):
print(inspect.getdoc(x))
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