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Subject: Re: solder paste - cnc dispenser

From: "Dave Mucha" <dave_mucha@...>
Date: 2004-04-24

--- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan
<stefan_trethan@g...> wrote:
> On Fri, 23 Apr 2004 11:15:00 -0000, ballendo <ballendo@y...> wrote:
>
> > Stefan,
> >
> > Yes. Not only possible, but easy.
> >
> > Ballendo
>
> details?
>
> ST


The syringe can be 'fed' with a stepper. the syringe can be moved
just like a spindle on the X/Y/Z so it would be an extreemly simple
matter to move it to a fraction of a mm from the board, and then
dispense any quantity.

I imagine that a pair of drops on a pad would be as easy as moving to
the X/Y, then to Z, dispense while retracting slowly.
mmove to next X/Y and repeat.

This would be very very simple to do both from the dispensing side of
the machine as well as the X/Y locations.

Since this would be a non-contact device, it could easily be clamped
on the side of your existing head and by only adding one additional
stepper for dispensing, you would have a complete unit.

Of course, my question is where to get low cost solder paste ?

Dave




Dave