EEVblog Electronics Community Forum
Electronics => Beginners => Topic started by: caltroniks on July 15, 2020, 05:25:17 pm
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Hello Everyone.
I am trying to make a SQUARE NPTH HOLE in PCB .This hole(opening) is for a light sensor .Light would fall onto the sensor through the opening.
For this i was able to make a SQUARE hole using Hole editor .I did get a NC drill NPTH file for square HOLE. However when the drill file was opened in CAMTASTIC or ViewMate i am getting a round drill hole.
Now normally a PCB fabricator will not have a SQUARE DRILL setup .as far as i know no one would have such as anormal practice.
However can any one share info as to how i can show the SQUARE hole in Gerber or a drill file..?
I am starting out with Altium Designer.
Response much appreciated.
Thank you
A.Calvin
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You'll need to think about how PCBs are fabricated.
There's a drilling machine that makes round holes (obviously), and the Gerber .drl file contains the positions and sizes of these holes.
And there's a mill that cuts the outline of the board (mostly the same machine with a different tool).
If you want an irregular hole in your board, you'll need to define it in the outline of the board. It will always have rounded corners, though.
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You can get mechanically punched, or laser cut, holes in specific circumstances. If you want the board fabricated by whatever bargain basement proto fabs are out there, it's going to be milled, and you will have a corner radius.
Tim