Layer
layer
is used to create geometry on the manufacturing layers of a circuit board. Layers can be used inside pcb-landpattern
, and pcb-module
.
Syntax
layer(Courtyard(Top)) = Rectangle(3.0, 2.0)
layer(SolderMask(Top)) = Rectangle(anchor, w, h)
layer(Silkscreen("values", Top)) = Text(">REF", 1.0, a, loc(x,y))
layer(Silkscreen("f-silk", Top)) = LineRectangle(1.5, 3.0)
layer(Silkscreen("pol", Top)) = Circle(x0, y0, 0.254)
layer(ForbidCopper(LayerIndex(n)))
layer(ForbidCopper(LayerIndex(2,Bottom)))
layer(ForbidCopper(LayerIndex(0), LayerIndex(2)))
layer(ForbidCopper(LayerIndex(0), LayerIndex(0, Bottom)))
Description
layer(Courtyard(Top)) = Rectangle(3.0, 2.0)
Define a 3mmx2mm Rectangle on the top courtyard layer. This would define the bounds of an SMD land pattern.layer(SolderMask(Top)) = Rectangle(w, h)
Define a w x h Rectangle on the top soldermask layer, as used to define soldermask for a pad.layer(Silkscreen("values", Top)) = Text(">REF", 1.0, a, loc(x,y))
Add 1mm high text saying ">REF" to the top silkscreen layer, anchored ata
and located at (x,y)."values"
is used to specify the intent of the text; all silkscreen on the top layer will get flattened to a single silkscreen layer in CAD export.layer(Silkscreen("f-silk", Top)) = LineRectangle(1.5, 3.0)
Add a 1.5mmx3mm rectangular outline to the top silkscreen.layer(Silkscreen("pol", Top)) = Circle(x0, y0, 0.254)
Add a circular polarity marker to the top silkscreen.
We can create geometry on the copper layers in our board using the LayerIndex
function. For example, here's how to create a keepout:
layer(ForbidCopper(LayerIndex(2)))
Forbid Copper on third layer from toplayer(ForbidCopper(LayerIndex(2,Bottom)))
Forbid Copper on third layer from bottomlayer(ForbidCopper(LayerIndex(0), LayerIndex(2)))
Forbid Copper on top three layerslayer(ForbidCopper(LayerIndex(0), LayerIndex(0, Bottom)))
Forbid Copper on all layers
All layer specifiers
Name | Description |
---|---|
Courtyard(Top) | Top Courtyard layer to indicate land pattern bounds |
Courtyard(Bottom) | Bottom Courtyard layer to indicate land pattern bounds |
Cutout() | Cutout layer for holes and slots |
SolderMask(Top) | Top SolderMask layer |
SolderMask(Bottom) | Bottom SolderMask layer |
Paste(Top) | Top Paste layer |
Paste(Bottom) | Bottom Paste layer |
Glue(Top) | Top Glue layer |
Glue(Bottom) | Bottom Glue layer |
Finish(Top) | Top Finish layer to indicate plating |
Finish(Bottom) | Bottom Finish layer to indicate plating |
Silkscreen("MyGraphics", Top) | Top Silkscreen layer |
Silkscreen("MyGraphics", Bottom) | Bottom Silkscreen layer |
BoardEdge() | Geometry to align with edge of board |
ForbidVia() | Forbid Vias layer (via keepout) |
ForbidCopper() | Forbid Copper layer (copper keepout) |