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Subject: Re: [Homebrew_PCBs] Re: solder paste - cnc dispenser

From: Stefan Trethan <stefan_trethan@...>
Date: 2004-04-24

>
>
> This is one of those things you find out about machine control.
>
> with some practice, you find that by being 0.5mm from the pcb, and
> starting the paste to flow and presising the syringe 0.1mm, that some
> exact amount is dispensed.
>
> this will be repeated on every occurance.
>
> One thing that comes to mind is the surface adhesion. If the paste
> does not adhere to the surface, it will not stick and the next pad
> will get double.
>
> But, each of these things are things you can control.
>
> Dave
>
>

You basically say whatever the machine does wrong, it does it wrong the
same way every time, right?

What about the software, how do i get the file i need to feed the cnc?
No point in building a expensive cnc machine and then it is impossible to
get the right file.

I reckon the "generating the file" thing would be even harder if one
thinks of pick and place?


ST