Homebrew PCBs

Dave Mucha wrote:
> --- In Homebrew_PCBs@yahoogroups.com, "ballendo" <ballendo@y...> 
> wrote:
> 
>>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?
>
> This list does not cater to what you care about, it caters to the 
> topic as listed on the home page.
> 
> Read the home page of the list.  What are you reading into the 
> title ?  99.99% of all PCB's are made with chemicals.  This is the 
> RIGHT list for that.
> 
>>I think that the idea of "where" a certain topic might get "more 
>>play" is without merit. 
> 
> If you want machine design, you don't go to electical engineers.  If 
> you want to make a PCB you don't go to mechanical engineers and you 
> don't go to chemical engineers to find out how to drill holes.

CNC etching is just as OT as laser printer toner transfer and
printer/toner/inkjet/film discussions. Printers are CNC machines
too.

 > I
> imagine pcb design would get tossed off your list PDQ.  Why should 
> all other lists but this one have a specific topic as stated on the 
> home page?  Common sense should tell you where to go to get the best 
> response.  Of course it starts where the idea starts.  And if your 
> list started getting into the chemicals for making PCB's would you 
> want to discuss that or would you tell them to come here ?  ie: go to 
> where the experts are or people with similar interests.

The similar interests are to achieve the *end* result. I'd rather
see CNC discussions here than boring old laser printer crap which
i know is inconsistant between models and toner brands anyway. However,
i don't bitch about it OT.

>>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!
> 
> I totally disagree.  How many on your list know the chemical 
> reactions of the stuff for making PCB's ?  Wrong list for that.  How 
> many on here know the stress and tortional calculations for 3/4 
> CRS ?  You don't ask an EE for mechanical designs and you don't as 
> ME's for Chemical properties and you don't ask a chemical engineer 
> how to drill holes.  (seems I already said that, but it is worth 
> repeating.)

PCB making crosses as many fields as you want. The list members come
from many fields. A mech.eng that wants to make PCBs might find
chemical etching OT just as much as i find laser printers OT.

>>since when does the "making" of the board stop 
>>before putting components on it? 
> 
> <snip>  
> 
>>Funny thing is, the idea is to allow someone LESS mechanically 
>>inclined to make (and complete) boards...
> 
> I agree, but you seem to advocating that less mechanically inclined 
> design your machines.  This list is not 90% mechanical and 10% 
> electronics.  just the opposite.

But i know *everything* electronic and have been learning more
things mechanical.

> I think the number of posts on the topics on here reflect the 
> background and experiance and direction of the list members.  90% 
> want to know about or handle chemcicals.

That's too restrictive. Discussions on lightbox design is just
as relevant.

> Look at any list, you go there to get answers or offer your help.  
> What part of this list description has anything to do with mechancial 
> machine design ?

Everything. PCBs are *mechanical*.