PCB Layout CAD - NC Drill Chart

PCB Layout CAD : PCB Settings

NC Drill Chart

The NC Drill Chart section of the Settings dialog allows you to configure NC Drill Chart file output settings. A NC Drill Chart file contains drilling information including positions, tool numbers, size, quantity and so on.

For more details about opening the PCB Settings screen, refer to About PCB Settings.

Sample NC Drill List

The tolerance "0.00" is also be exported in the NC drill chart.

NC Drill Chart File

NC drill chart files are created for each combination of the start layer and end layer of drills. You can also generate separate NC drill files for plated and unplated holes.

Chart Title Examples)
　Top-Bottom　　　：A NC drill chart from a Top layer to a Bottom layer
　Top-2　　　　　　：A NC drill chart from a Top layer to a second layer
　2-3　　　　　　　：A NC drill chart from a second layer to a third layer
　3-Bottom　　　　：A NC drill chart from a third layer to a Bottom layer

Drill Table

Display Item Settings

Item Name	Content
Tool	Shows the Drill Tool No. (Ex.: T01, T02)
Symbol	Shows the shape of the symbol displayed on the drill position for printing.
HoleType	Shows the Drill Shape.
Size	Shows the drill size.
Tolerance	Shows the drill tolerance.
Angle	Shows the drill angle.
Layer	Shows the drill layer.
Plated	Shows the drill plating status. (Plated/Non-Plated)
Quantity	Shows the number of drills with the same size.

Drill Table Settings

Item Name	Content
Position	The Drill Table position can be selected from "Top", "Bottom", "Right", or "Left". The position is shown from the edge of the PCB document object.
Offset X	Use this field to specify the distance by which the table should be moved along the X axis.
Offset Y	Use this field to specify the distance by which the table should be moved along the Y axis.
Unit	The unit can be selected from "mm, "mil", or "inch".
Decimal Places	The Decimal Places for Diameter can be set.
Frame Line Width	The Frame Line Width of the Drill Table can be set.
Frame Margins	The Margin width of the Drill Table and Setting Values can be set.
Mark Size	The size of the symbol displayed on the drill position can be set.

Text Settings

Item Name	Content
Font	The Font Type of the Drill Table can be set.
Size X	The width of text displayed in the Drill Table can be set.
Size Y	The height of text displayed in the Drill Table can be set.
Lock Aspect Ratio	By placing a check, the Vertical and Horizontal ratio of the text displayed in the Drill Table becomes fixed.
Text Line Width	The width of symbols and text displayed in the Drill Table can be set. (For text, only "Vector" fonts are applied.)
Text Space	The pitch (Interval) of text displayed in the Drill Table can be set.

Outline Generation Settings

Item Name	Content
Separate File According to Plating Status	Enable this option to generate separate NC drill chart files for plated and unplated holes. Chart Title) TH ：A NC drill chart file for plated drills NTH ：A NC drill chart file for unplated drills
Generate Circle Drill Outline	Enable this option to generate the outline of circle drills.
Generate Slot Drill Outline	Enable this option to generate the outline of slot drills.
Generate Square Drill Outline	Enable this option to generate the outline of square drills.
Generate Rectangle Drill Outline	Enable this option to generate the outline of rectangle drills.

Print Settings

Item Name

Content

Mirror

Use this control to generate a NC drill chart file with the flipped coordinate information. Use the drop-down list to choose from the following:

No Mirror　　　　: A NC drill chart file is output with the viewed-from-top coordinate information.
Horizontal Mirror : A NC drill chart file is output with the horizontally flipped coordinate information.
Vertical Mirror　 : A NC drill chart file is output with the vertically flipped coordinate information.

Drill Mark

The Drill Mark tab allows you to customize drilling information such as mark shapes and tool numbers shown in the NC drill chart as needed. This setting also applies when exporting NC Drill files.

Adding Drill Marks

The following will explain how to add specified Drill Marks displayed in the NC Drill List.

(1)	Click the "Add" button.

(2)	The item will be added. Specify the Setting Value.

Setting Items

Item	Shape
Mark Shape	Specifies the Mark Shape for displaying the NC Drill List. The Mark Shape can be selected from the following. By directly inputting a character string, it is possible to use a Cross and arbitrary text as a Mark. * Character strings other than the same ones as the above Mark Shapes are targets.
Tool	Specifies the Drill Tool No. This setting also applies when exporting NC Drill files.
Hole Type	Sets the Hole Type that specifies the Drill Mark.
Hole Diameter/Width	Sets the hole width.
Height	Sets the hole height when the Hole Type is "Oval"/"Rectangle".
Layer From	Sets Layer From for the drill hole.
Layer To	Sets Layer To for the drill hole.
+ Tolerance	Sets the + Tolerance for the drill hole.
- Tolerance	Sets the - Tolerance for the drill hole.
Angle	Sets the Angle for the drill hole.
Plating	Sets the drill hole plating status. For Via holes, all operate as "Plating". For Pad holes, configure them the same as for "Plating" settings.

Exporting NC Drill Lists

There are the following methods for exporting NC Drill Lists.

- Click the icon of the NC Drill List screen of the PCB Settings
- Open a PCB document, [Project] => [Print NC Drill List] => [Print NC Drill List]
- Batch Output

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