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Author Topic: Drill Templates for LED Displays  (Read 782 times)
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I created some drill templates for some LED kits that I am going to
be introducing. For an example see
http://wiblocks.luciani.org/PICO/PICO1TR-LED-CL-index.html

I have used these templates to create wood cases for my demo boards.
For each mounting hole, LED, switch and POT on the board there
is a modified cross-hair on the print. To mark each drill position
on the wood I use a push-pin. The templates have worked out well for
wood but I am not sure how useful this would be for other
materials.

Since the prints are automatically generated I may add the
dimensions for the hole placement or generate a separate dimensioned
print.

I would be interested to hear suggestions about the type of documenation
you would find useful when creating cases and panels. If there is an improvement
to the drawings (or additional drawings) that would help you create a case or panel please post it.

Thanks.

(* jcl *)

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www: http://www.wiblocks.com
twitter: http://twitter.com/wiblocks
blog: http://luciani.org
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The template looks reasonable for manual drilling, but I'd like to also have some sort of standard machine-readable file in case I were inclined to use a CNC machine of some kind to make the panel.  (This is a non-issue if you're going to provide EAGLE source code anyway.  An EAGLE file containing just the LEDs would be an OK compromise.)
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.. I'd like to also have some sort of standard machine-readable file in case I were inclined to use a CNC machine of some kind to make the panel.

I don't use Eagle -- would an ASCII file with XY data work?
Maybe Gerber drill format? I was thinking of providing an ASCII
file but was not sure if there was a common format.  

(* jcl *)
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Firstly, maybe you want to do them in millimeters (as well maybe) as it is the standard worldwide engineering measurement.

I am not sure about a standard file for drilling. All software seems to want it differently. If you are producing circuit boards then yes it is a gerber but I have never used them myself. I would use dxf but then different software requires you to have them drawn differently anyway.

Mowcius
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Gerber format would be fine.  As I see it, your responsibility ends with providing a standard format file.  If people have trouble reading it because they don't like that particular standard, that's their problem.

A ascii file of coordinates would be less good, but certainly better than nothing.

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Is Gerber the standard file format used by CNC machines?

(* jcl *)
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Is Gerber the standard file format used by CNC machines?
It appears to be the standard format for PCB CNC machines but I have never used it on any other CNC machines. Usually dxf files.

Mowcius
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I have not googled but do you know where there is a specification for the
dxf format? I may want to specify other mounting characteristics besides
drill holes and dxf may be better.

Thanks.

(* jcl *)
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Actually, "Gerber" is a photoplotter format, and the [drill file] standard most often associated with "gerbers" in the PCB world seems to be called "EXCELLON"...
« Last Edit: June 25, 2010, 03:31:00 am by westfw » Logged

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Actually, "Gerber" is a photoplotter format, and the standard most often associated with "gerbers" in the PCB world seems to be called "EXCELLON"...

The PCB drill files are called Excellon. Usually gerbers := gerbers + excellon

(* jcl *)
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