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Subject: Re: solder paste - cnc dispenser

From: "ballendo" <ballendo@...>
Date: 2004-04-27

You're kidding right?

We can talk for DAYS! about CuCl regeneration (which I could give a
rat's @$$ about), but not about engineering a way to get folks more
productive in the "other" aspects of pcb creation?

We can talk of how to engineer a plotter into a cutter or a laser
printer into a toner transfer device, but not how to make a usable
paste dispenser inexpensively?

I think that the idea of "where" a certain topic might get "more
play" is without merit. I'm not here to get "more play". I'm here
because I value the opinions of the folks who are HERE. You just
posted that in the group YOU moderate, mention of a simple cheap
machine using drawer guides would be laughed off the list! The only
thing which seems to create "new" lists from old ones, is over
moderation of topics...

Thankfully, that is not the case here.

Ballendo

Snips, inserts below

Perhaps we need: Homebrew PCB's-etchants, Homebrew PCB's-drilling,
Homebrew PCB's-layout, Homebrew PCB's-phototools, Homebrew PCB's-TT,
etc.......... NO!

>In Homebrew_PCBs, "Dave Mucha" wrote:
<snip>
> I was only agreeing with another member that the topic would fall
> more under the build a machine list. That member recognised that
> designing a paste machine and writing software was pretty far
> afield for this list.

Reading your included snip of Stefan's reply below doesn't suggest
that at all. It simply says there is more info AT that site ABOUT
paste dispensing.

FWIW, A "general" cnc machine list has NO IDEA what's required FOR
pcb's. If you're gonna make a machine for pcb's, IMO you should talk
with the folks who are making them!

> The thread was discussing
> - how to write the software
> - how to engineer the paste mechanism
> - how to write the G-code
>
> These are pretty far off how to make a pcb as you entered
> assembling boards and machine design.

Dave, forgive me. But I think you've spent too long policing CCED.
Since when does Homebrew PCB's mean only the making of the board? or
put another way, since when does the "making" of the board stop
before putting components on it? I think it's pretty clear that the
most common member of homebrew'd pcb's is making pre-production
prototypes, personal projects, and other low volume "immediate" need
situations. With a FEW members who are in light production... For
these folks, having methods to COMPLETE the homebrew PCB is a good
thing...

>But for those who are both mechanically inclined and want to make a
>board, it is a good topic.

Funny thing is, the idea is to allow someone LESS mechanically
inclined to make (and complete) boards...

> Pic and place would be another topic and if this list gets a lot of
> play on that topic, I would bet yet another list gets created.

Only if Steve wants to thin out his group. Which he doesn't appear to
wish to do; based on his replies in this thread.

I can understand if I were promoting several thousand dollar
solutions aimed at board productions in the hundreds. I DO have those
too. But I'm not promoting them here, because they don't fit the
needs of this group. A DIY drill, and a DIY solder paste dispenser,
and a DIY pick and place DO...

> > > Stefan Trethan wrote:
> > > yea, yea, i got it... member there some time already...
> > > further discussion of solder paste cnc dispenser is at cnc-
> > > pcb_design
> > > ST