Re: It's Alive!

James,

Sorry, just our own stuff.

Mariss

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "James Cullins"
<jcullins@c...> wrote:

> Mariss Do you assembly for others or just for your own products?
> if you do what are your charges
> Thanks Jim
> ----- Original Message -----
> From: <mariss92705@y...>
> To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> Sent: Tuesday, February 25, 2003 12:52 PM
> Subject: [CAD_CAM_EDM_DRO] Re: It's Alive!
>
>
> > John,
> >
> > 1) Manual stencil machine. No point for an automated one because

this

> > step takes only 30 seconds.
> >
> > 2) I use top side SMT only. Doing top and bottom triples the

process

> > time (top mount, reflow, glue dispense, bottom mount, reflow

again).

> > Nightmares are made that way; parts falling off in the oven,

a "glue

> > accident" in the machine, etc.
> >
> > 3) The oven is an Essemtec 6 zone IR oven, (preheat, soak and

reflow

> > both top and bottom). About 3 minutes from the goezinta to the
> > goezouta.
> >
> > The machime is an FS-730. It was built in '99, has less than 1,000
> > hrs total time, clean as a whistle and sold for $180K then.

Thanks to

> > the dot.com collapse they can be had for $30K with feeders today.
> >
> > It boots in WIN95 but runs in DOS. I'm learning its idiosyncrasies
> > while suppresing mine that applied to dealing with Ursulla.
> >
> > Mariss
> >
> >
> >
> > --- In CAD_CAM_EDM_DRO@yahoogroups.com, "jmkasunich
> > <jmkasunich@y...>" <jmkasunich@y...> wrote:
> > >
> > > Cool! I'm curious what your process flow is like. Do you
> > > use vapor phase, IR, etc, for SMT reflow? what about the
> > > bottom side (are there SMT parts on the bottom?)
> > >
> > > Where I work, the process for most boards is stencil solder
> > > paste on top, place top side SMT, reflow top side (IR),
> > > then flip, stencil glue on bottom, place bottom SMT, cure
> > > glue (also IR), flip again, place thru-hole, then wave
> > > solder thru-hole and bottom SMT. Some higher density
> > > boards that are 100% SMT get double sided reflow instead
> > > of wave.
> > >
> > > I find the whole process amazing, and high speed pick
> > > and place machines are fun to watch. I rarely get to see
> > > it though, since I work in Cleveland OH and my boards
> > > are usually built at a plant north of Mukwaukee WI.
> > >
> > > John Kasunich
> >
> >
> > Addresses:
> > FAQ: http://www.ktmarketing.com/faq.html
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wanliker@a...,

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