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	To give a pad an oblong hole please use the dialog ''Change Pads'' or  - a priori - the dialog ''Pad Options''.		To give a pad an oblong hole please use the dialog ''Change Pads'' or  - a priori - the dialog ''Pad Options''.
−	Double click on a pad to open the ''Change Pads'' dialog. Close to the entry "Drill hole" you'll see the link ''Slot hole''.	+	Double click on a pad to open the ''Change Pads'' dialog. Close to the entry "Drill hole" you'll see the link ''Oblong hole''.
−	[[Image:langloch_e_1.jpg|none]]Image: The link: ''Slot hole'' in dialog ''Change Pads...''	+	[[Image:langloch_e_1.jpg|none]]Image: The link: ''Oblong hole'' in dialog ''Change Pads...''
−	[[Image:langloch_e_2.jpg|none]]Image: ...allows edition of an oblong hole in horizontal imagination.	+	[[Image:langloch_e_2.jpg|none]]Image: ...allows edition of a slotted hole in horizontal imagination.
−	[[Image:Langloch_3_def.jpg|none]]Image: This pad has got an slot (oblong) hole of 1,5mm length and 1,1mm hight. Its height results from the width of the drill i.e. the diameter of the tool. If it is not at least 1 mm wide, the following message appears:	+	[[Image:Langloch_3_def.jpg|none]]Image: This pad has got an slot (oblong hole) of 1,5mm length and 1,1mm hight. Its height results from the width of the drill i.e. the diameter of the tool. If it is not at least 1 mm wide, the following message appears:

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Revision as of 13:57, 13 May 2015

also see:

• Pad
• Aura
• SMD
• Solder paste
• Solder stop
• Test points
• Thermal Pads
• Used pins/pads
• Via
• Drillhole
• Soldering pad having different auras upon different layers
• Two pads leading one signal

Oblong holes in datasheets often are displayed that way:

Image 1: Two oblong holes

An oblong hole is a "Drillhole" brought to length. Others call it a slotted drill or a slotted hole. It is manufactured by a milling tool. Such a tool at least shall be 1 mm strong. In consequence the slot will be 1 mm wide. Smaller slots are difficult to mill. In TARGET 3001! please define millings on layer 25, Milling or on layer 23, Outline because outlines get milled anyway.

To give a pad an oblong hole please use the dialog Change Pads or - a priori - the dialog Pad Options. Double click on a pad to open the Change Pads dialog. Close to the entry "Drill hole" you'll see the link Oblong hole.

Image: The link: Oblong hole in dialog Change Pads...

Image: ...allows edition of a slotted hole in horizontal imagination.

Image: This pad has got an slot (oblong hole) of 1,5mm length and 1,1mm hight. Its height results from the width of the drill i.e. the diameter of the tool. If it is not at least 1 mm wide, the following message appears:

Image: A drill diameter less than 1 mm is too small for many PCB houses.

Alternative:
If an oblong hole shall be surrounded by copper and plated through, please draw a pad showing the desired copper shape and create the oblong hole as a milling. The milling itself please draw as a line having the desired dimensions upon the milling layer (by default layer 25, Milling). Select the drawing tool from the tool bar and press M2 on the milling layer in the side bar in order to activate it. The width/length of the drawn line defines the dimensions of the milling.

The following image shows the principle of creating a lengthened octagonal pad having a drill hole and having a milling command over it on layer 25 (brown). Change the pad form to "Oblong" in the pad dialog.

Image 2: An individually shaped pad with a milling command on top of it

Now push the milling in position using M1H.

Image 3: A pad with an oblong hole

Your PCB house will mill the oblong hole accordingly. Normally the rule applies: "As long as a copper rest ring remains around the drilling, the figure gets plated through." This is not always the same with milling. Because it depends on the question when the milling will be done: Prior to the plating or afterwards. Regarding the "plating through" in this case please contact your PCB house how they handle such. Maybe you should add a little explanatory text in respect to the milling here.

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