Re: [CAD_CAM_EDM_DRO] Re: Servos and Controller boards

Lee, anyone with a cnc mill/router can create a circuit board by milling it
out , if you do the g code (plenty of methods available free on the net) im
sure someone can mill it out for you??
Even my Mk router would do this.

Nick

----- Original Message -----
From: "Trend" <fredit@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Tuesday, April 13, 2004 8:22 AM
Subject: Re: [CAD_CAM_EDM_DRO] Re: Servos and Controller boards


> on a seperate note, I am trying to develop a simple pcb for a project (I
> don't believe anyone has one exacually like i want), about how much does
it
> cost to have a pcb made?
> Or, could I do it myself some how? (besides with a cnc.. I don't have one
> put together yet ;( )
>
> thanks-Lee
>
>
>
> ----- Original Message -----
> From: "Dave Fisher" <dave@...>
> To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> Sent: Monday, April 12, 2004 8:58 PM
> Subject: RE: [CAD_CAM_EDM_DRO] Re: Servos and Controller boards
>
>
> >
> >
> >
> > --- In CAD_CAM_EDM_DRO@yahoogroups.com, "caudlet" <info@t...> wrote:
> > > I don't think I would attempt to design, layout and build a servo
> > > motor controller. Because of the closed loop design there is a lot
> > > more to it than just twisting a motor with DC.
> > <snip>
> > > I don't think you can "stick" build them for much less than
> > > that even if you work for free.
> >
> > Unfortunately, the days of home brew circuitry and 'lashups' are
> numbered -
> > Technology has advanced so much (possibly for the better) that the
> simplest
> > of circuits to build on the kitchen table can prove to be more of a
chore
> > than the enthusiastic hobbyist would want.
> >
> > Most control circuitry these days is based around digital techniques -
> > albeit it's only nought's and one's BUT an understanding of logic is
> > required PLUS most of the logic stuff is 'glued' together with a micro
or
> > PIC, of which another understanding is required. All this is fine stuff
> and
> > good exercise for the brain. Now we need the analog bit - not so easy as
> > logic - FAR more permutations of signals and sums ! After the learning
> > curves of logic, micro or PIC software and analog circuitry, we come to
> the
> > point to actually make something. First we need an assembler / simulator
> to
> > write our code, on a PC of coarse, then we need to layout a circuit
> board -
> > another software package to source and learn. Now we have to get our PCB
> > made and drilled. Hoping that the board we designed is OK, we can now
> source
> > the components, assemble the board (you ever tried to solder a surface
> mount
> > IC ? - lucky if I can even see em !) and test - Damn - I forgot to
program
> > the PIC ! Rush out and buy a PIC programmer, and so it goes on.
> >
> > I agree with Tom, but please, don't let my thoughts put anybody off
> > innovation - after all if we never attempted to build or design anything
> we
> > would all still be in the dark with square wheels !
> >
> > Having been in the electronics business for over 30 years, and seen the
> > quality and price of some of the servo amps (Rutex - Geko etc) I can
only
> > advise anyone just starting out on the CNC hobby route NOT to even
think
> > about building their own controllers or amps - What your Dollar buys
today
> > in terms of servo amps and controllers is FANTASTIC value, rolling your
> own
> > could be more expensive and time consuming than you think !
> >
> > Rgds
> >
> > Dave Fisher UK
> >
> >
> >
> >
> >
> >
> > Addresses:
> > FAQ: http://www.ktmarketing.com/faq.html
> > FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> > Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
> >
> > Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> > Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> > List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com, wanliker@...,
> > timg@...
> > Moderator: pentam@... indigo_red@... davemucha@...
> > [Moderators]
> > URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
> >
> > OFF Topic POSTS: General Machining
> > If you wish to post on unlimited OT subjects goto:
> > aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it
> if
> > you have trouble.
> > http://www.metalworking.com/news_servers.html
> >
> > http://groups.yahoo.com/group/jobshophomeshop I consider this to be a
> > sister site to the CCED group, as many of the same members are there,
for
> OT
> > subjects, that are not allowed on the CCED list.
> >
> > NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM.
> > DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
> > bill
> > List Mom
> > List Owner
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
> > Addresses:
> > FAQ: http://www.ktmarketing.com/faq.html
> > FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> > Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
> >
> > Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> > Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> > List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com, wanliker@...,
> timg@...
> > Moderator: pentam@... indigo_red@... davemucha@...
> [Moderators]
> > URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
> >
> > OFF Topic POSTS: General Machining
> > If you wish to post on unlimited OT subjects goto:
> aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it
if
> you have trouble.
> > http://www.metalworking.com/news_servers.html
> >
> > http://groups.yahoo.com/group/jobshophomeshop I consider this to be a
> sister site to the CCED group, as many of the same members are there, for
OT
> subjects, that are not allowed on the CCED list.
> >
> > NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM.
> DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
> > bill
> > List Mom
> > List Owner
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
>
>
>
>
> Addresses:
> FAQ: http://www.ktmarketing.com/faq.html
> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
>
> Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com, wanliker@...,
timg@...
> Moderator: pentam@... indigo_red@... davemucha@...
[Moderators]
> URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
>
> OFF Topic POSTS: General Machining
> If you wish to post on unlimited OT subjects goto:
aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if
you have trouble.
> http://www.metalworking.com/news_servers.html
>
> http://groups.yahoo.com/group/jobshophomeshop I consider this to be a
sister site to the CCED group, as many of the same members are there, for OT
subjects, that are not allowed on the CCED list.
>
> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM.
DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
> bill
> List Mom
> List Owner
>
>
> Yahoo! Groups Links
>
>
>
>
>