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Subject: Re: [Homebrew_PCBs] Some clarity and understanding was Re: mechanical etching

From: Stefan Trethan <stefan_trethan@...>
Date: 2004-04-28

On Wed, 28 Apr 2004 08:54:54 -0000, ballendo <ballendo@...> wrote:

>> In Homebrew_PCBs, "Dave Mucha" wrote:
>> And THAT is why CNC-PCB_design was created !
>> the non-technical, home brew drilling concept you can build from
>> stuff laying around to spending $100.00-200.00 in parts.
>
> Hello,
>
> This comment (above) caused me to do a quick check of something since
> I am a member of the mentioned group...
>
> And sure enough, Dave Mucha has the blue star of list ownership!
>
> A WHOLE lot of recent posts now make more sense, IMO...
>
> Ballendo
>

Ya didn't know that ;-) Thought that was clear enough.....


I thought about this file editing for paste dispensing stuff...
I think i am perfectly capable of writing a tool in java or C++ that opens
a file, searches for each "hole" and inserting code there (some call to a
macro).
Damn, what is this whole programming training good for if i never use it?
I think it would be easy to allow the user to enter the parameters of the
"dispense
cycle".

What do you think, is it better to use a excellon file as a starting point
or
a gerber file, what is more universal?
I can produce both, but future pcb software may not.
What is more common, and what is more easy to use?

I don't know how gerber stores the data, if i "draw" dots where i need the
paste,
it it stored as "use aperture (round-1mm) at x y "?

Can you recommend a page where i can read up on gerber and excellon?

If using your canned drill cycle, where does one add the syringe stepper
activation?


Well, i have to go now (you guess it - programming lessons ;-) i hate it
- unbelieveable how much programming you are forced to do if you study EE)


thanks

ST

P.S.: I am sorry that i hijacked that post, please reply with the proper
Subject.