Li Chuang EDA learning notes 15: draw border or import border (DXF file)

Before placing the package , You need to draw the board border first . The border needs to be in “ Border layer ” draw . First switch to “ Border layer ”, Then use wires or arcs to draw .

When using the schematic, turn PCB when , Lichuang EDA A border is automatically generated , The area inside the frame is... Of the total package area 1.5 times .
If you don't like the border , You can delete it and redraw it yourself . On the toolbar “ Global delete ” The function can quickly delete borders .

Lichuang EDA Provides a border setting wizard , Through it, you can easily set the border .
It can be done by ： Tools > Border settings   Or on the toolbar “ Tools ” Under the icon “ Border settings ”.

In the dialog box, you can choose 3 Border of type in ： rectangular , circular , Rounded rectangle . And set the corresponding parameters .

If you need to create a complex border , You can import a DXF File generation .DXF Can be CAD And other software to draw and generate .

Be careful :

• If multiple borders overlap in the drawn border , Or the border is not closed , Exporting gerber It will be reported in time “ The border is not closed ” error .
• Lichuang EDA Support the use of borders to dig holes , Or use hole 、 or Solid fill ( type ： Slotted hole ) To dig holes .
• The right-click menu of wire can be changed to slot .

If you want to draw a complicated border by yourself , So Lichuang eda Only common drawing tools are provided , Lack of some in autocad It seems to be a very common tool in , Then maybe you only have cad Draw the frame in , Then import in , The import method is as follows ：

stay file  >  Import DXF  Open the Import dialog ：

I chose DXF After the document , Will appear DXF File preview ：

Lichuang EDA There are four unit conversions ： Inch inch、 centimeter cm、 mm mm、 Mils mil;

In schematic diagram, etc ,DXF The length of is set to pixels , Such as length 100 Of DXF, The length after import is 100px.

Import on PCB、PCB modular ,PCB Library and select the layer to import ： top floor 、 Bottom 、 Top screen 、 Bottom screen 、 Frame 、 file .

Click on “ Import ” After button , Can appear in the canvas .

Be careful ：

• Imported DXF The document must be marked with .dxf Extension name .
• When you select the imported layer as the border , The circle will be converted into a via .
• There will be some details that cannot be perfectly supported , Like a helix , Mirror image, etc . If you find details that cannot be well supported, please DXF Send it to us for analysis .
• It is not recommended to import directly into the signal layer , Because we need to calculate the signal connection relationship , Importing the signal layer may get stuck .
• If you import DXF If there is a combination, please dissolve the combination before importing .