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Contract circuit board maker source?

Discussion in 'Electronic Basics' started by JazzMan, Mar 14, 2005.

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  1. JazzMan

    JazzMan Guest

    I've got a small project that I want to make about two hundred
    copies of. The board is 1" x 1.25" single side single layer
    with 10 through holes. I don't need silkscreening or special
    features, just the etched board. I've got accurate drawings
    in AutoCad. What would be the least expensive way to get these
    made? Time isn't so much a factor.

    I've thought about making them myself, but haven't got experience
    with the photo processes. The largest board I've made so far is
    5.5" x 6" with a couple of hundred through holes single sided, I
    used the technique of laser printing the reverse layout onto the
    backing sheet of labels, then ironing the toner onto the board,
    touching up defects with a Sharpie permanent marker. That worked
    ok, but it wasn't as professional-looking as I'd like these to look.

    If I go with a photo process, I'd like to make my own sensitized
    boards because the pre-sensitized boards are fairly expensive. Is
    that something that's possible? Is there a spray or coating that
    I can apply to make a board photo-resist ready?

    Thanks!

    JazzMan
    --
    **********************************************************
    Please reply to jsavage"at"airmail.net.
    Curse those darned bulk e-mailers!
    **********************************************************
    "Rats and roaches live by competition under the laws of
    supply and demand. It is the privilege of human beings to
    live under the laws of justice and mercy." - Wendell Berry
    **********************************************************
     
  2. I have tried those products and I do not recommend them.
    It is very difficult to get a layer which has the same thickness
    everywhere, and that ruins the etching process.

    It is much better to buy readymade photosensitive pcb board material.

    If you choose to make your own after all you can spray in the middle of
    the board and then rotate the board very fast (with a motor) to spread
    out the photoresist evenly in a thin layer. I have not tried this but I
    heard about that method.

    Or mount two boards on each side of the rotation center, spray the inner
    edges, rotate fast to force the liquid to flow over the whole surface,
    and the excess liquid is thrown off the outer edge.

    You also need to do it in a dust free environment which can contaminate
    the photoresist before it has dried in an oven set to low heat.
     
  3. JazzMan

    JazzMan Guest

    Just checked them out, that's three 2.5" x 3.8" boards.
    Too expensive for what I want to do.

    JazzMan
    --
    **********************************************************
    Please reply to jsavage"at"airmail.net.
    Curse those darned bulk e-mailers!
    **********************************************************
    "Rats and roaches live by competition under the laws of
    supply and demand. It is the privilege of human beings to
    live under the laws of justice and mercy." - Wendell Berry
    **********************************************************
     
  4. Try www.futurlec.com. It may be cheaper to put a bunch of them on a
    board, and then cut them up later. Send them email, they may be willing
    to help out with that.

    www.futurelec.com

    --
    Regards,
    Robert Monsen

    "Your Highness, I have no need of this hypothesis."
    - Pierre Laplace (1749-1827), to Napoleon,
    on why his works on celestial mechanics make no mention of God.
     
  5. Jamie

    Jamie Guest

    http://www.expresspcb.com

    they have a 3 boards for $51.00
    but they don't specify the size etc.
    they maybe large boards in which case
    you could mask multiple copies of the
    same mini board on the larger one and
    then slice them up your self using a
    scroll saw.
    i am not sure, look at the sight.
     
  6. Guest

    Check out http://www.4pcb.com/ . Look under "Specials".
     
  7. fengjianqing

    fengjianqing Guest

    Hello,
    You can send your file to me. We can help you to do these boards. Only
    0.02 US$ per cm*cm for FR4 single side. But the price does not include the
    transfer fee to you. You can send to fjq at qingdaonews.com

    Best regards,
    Feng
     
  8. I am interested in the communication possibilities between China and
    Europe, and maybe you can tell me something about that.

    I understand that you send most of your products via airplane or
    oceangoing ships, but is there a possibility to send products by truck,
    through central Asia?

    That should be a more economical way to send products from China to
    Europe than by airplane, and faster than by ships, going around the whole
    eurasian continent.

    Do you know how the roads are in China, from China to Kazakstan
    and from there to Europe?

    Is that possibility used by chinese producers, or are there problems
    which make that alternative less attractive?
     
  9. fengjianqing

    fengjianqing Guest

    Hello Roger,
    Very gald to see your answer. Yes, you are right. We send most of our
    products via airplane or oceangoing ships. You know if we use your
    suggestions to transfer the products using truck s. No truck go directly
    from one country to another one. I can not promise to you if the products
    can send to your hands. Maybe will lose very easy. We all do not want to
    see such thing happen. Do you agreee?
    So I think the best way is by ship the first, the second by air.
    For further discuss, you can send mail to me. Send to fjq at qingdaonews
    dot com.

    Best regards,
    Feng
     
  10. Yes, I think I understand. But sometime in the future we will see better
    and safer transport infrastructures through central Asia.
    An infrastructure which promotes peace and equality between all people on
    the eurasian continent.
    Yes, for urgent orders airplane is the best, and for big volumes ship is
    best, even if it takes a week or two to Europe.
    Not necessary, but thanks anyway.
     
  11. JeffM

    JeffM Guest

    Try www.futurlec.com.
    Morons who make their sites 100% Flash don't deserve anybody's
    business.
     
  12. Why not? Great prices, hard to find parts, orders arrive on time and
    intact, no whining about small orders...

    --
    Regards,
    Robert Monsen

    "Your Highness, I have no need of this hypothesis."
    - Pierre Laplace (1749-1827), to Napoleon,
    on why his works on celestial mechanics make no mention of God.
     
  13. JeffM

    JeffM Guest

    futurlec.com.
    This reminds me of the American arrogance of the '80s
    when we were losing business to Japan
    because we couldn't seem to learn the lesson
    "You can BUY in ANY language;
    to SELL you must speak the language of your customer."

    HTML is the lingua franca of the Web. Flash is a gimmick.
    A site that is 100% Flash is moronic.
    Having dealings with morons is moronic.
     
  14. They probably just like flash, and since 98% of the world's computers
    run it, nobody notices the difference. 2% may not be able to handle it.
    Perhaps they don't know this. Perhaps they just don't care. Perhaps the
    contract firm they hired to write the website doesn't care, or doesn't
    know. Perhaps you are making a big deal out of nothing.
    Well, it's possible they are idiot savants. The savant part appears to
    be in being able to offer reasonable prices, deliver on time, and not
    nick you for a small order surcharge.

    Since I appear to be coming off like an ad, let me stress that I'm not
    associated with them in any way, other than being a bit impressed with
    their prices on SOME things. You need to check, since they appear to use
    an odd 'price by demand' scheme, which can cause chips that are nearly
    identical (and priced nearly identically at, say, digikey) to be priced
    very differently.

    --
    Regards,
    Robert Monsen

    "Your Highness, I have no need of this hypothesis."
    - Pierre Laplace (1749-1827), to Napoleon,
    on why his works on celestial mechanics make no mention of God.
     
  15. I don't like flash web sites either, but at least I can express myself in
    a civilized language.

    If I see something I don't like I try to formulate my views as
    explanations and positive suggestions, instead of negative criticism.

    The reason why people don't like the flash file format is that it is like
    a program which is downloaded and run on the client machine, and those
    programs are not controllable by the client like html web sites.

    Html is a way to suggest how the information is to be presented, but it
    allows the client to adjust things like fonts, font sizes, background
    colors, layout, to fit his special needs and taste.

    Unfortunately we will probably have to wait for 10-20 years before
    newsgroups can be recommended for children and civilized people.
    The level of foul language background noise is still very high.
     

  16. Constant updates to the Flash software, and not having permission to
    install new software on a computer where you work are two that come to
    mind. Its a double insult to be hit with a slow loading flash page AND
    a nasty warning that your software is out of date. In these cases I
    send a "No thank you note" and tell the vendor I will look elsewhere for
    my parts. Not only that, but how well will a Flash page be indexed by a
    search engine? Are they treated like other oddball formats and ignored?

    At my last job I had to let the IT droids install all software,
    including software to program parts on the production line.
     
  17. I haven't had any flash updates recently, and the site seems to work
    properly. Perhaps they don't use the wizzy new features?

    Its a double insult to be hit with a slow loading flash page AND
    Yes, that would be annoying. Thankfully, it hasn't happened to me at
    this site yet.
    Good idea. This may prompt them to use a different technology whigh
    would be more useful for you.
    I do get hits for futurlec on google all the time, so I suspect they've
    somehow overcome that problem if it exists.
    That is overly restrictive.

    --
    Regards,
    Robert Monsen

    "Your Highness, I have no need of this hypothesis."
    - Pierre Laplace (1749-1827), to Napoleon,
    on why his works on celestial mechanics make no mention of God.
     
  18. JeffM

    JeffM Guest

    Try www.futurlec.com.
    It won't be--at all.

    Yup. You've touched on another thing about Flash sites:
    you can't cut & paste text from them.
    Some Web developers use Flash specifically
    so the underlying nature of their sites can't be easily examined.
    You have to ask what's up with someone that would hire a Web developer
    who puts his own priorities (code obfuscation) first.


    :I do get hits for futurlec on google all the time,
    :so I suspect they've somehow overcome that problem if it exists.
    : Robert Monsen
    :
    I Googled the site and it looked like a normal HTML site
    http://www.google.com/search?&q=site:futurlec.com+printed-circuit
    so I went to the site again.
    Guess what--it's not a Flash site any more.

    So, do those guys read this group?
    Were they coincidently trying something foolish
    at the exact moment they were getting free advertisement here?
     
  19. fengjianqing

    fengjianqing Guest

    Why you can see so many websites have flash. Because the servicer tell to
    the owner of the website-- the flash is beautiful and wonderful for
    others' first eye to see you website. And from this feather the servicer
    company can earn more.

    For the beginning business with China, I also 100% agree you should take
    care about the quality, the price, the time... But if you do not to try
    you do not know, you will lose chance. More and more company purchase
    directly from China. Why? It is not only because the lower price, also
    because you pay the lower money you can get the same quality products or
    the higher quality. This is true!
    So at first give yourself chance to try. You will earn from China.

    Regards,
    Feng
     
  20. I have disabled flash in my browser so I didn't even try before.
    But I tried it now and it is nice, low prices and low freight costs.
    All kinds of components and instruments.

    Quoting from the site:
    ..........
    "SHIPPING METHODS
    For Australian, Canada, UK, EU and USA customers,
    we can offer domestic postage rates as follows,

    USA, Canada, UK, European Union(EU) and Australia

    Standard Post
    For orders up to US$30, Delivery Charge - US$3.00.
    For orders US$30 to US$49, Delivery Charge - US$5.00
    For order US$50 to US$99, Delivery Charge - US$8.00
    For order US$100 and above, Delivery Charge - US$12.00

    Express Post
    For orders up to US$100, Delivery Charge - US$15.00.
    For order US$100 and above, Delivery Charge - US$30.00"
    ..........

    Those freight costs are basically the same as when I order from the
    companies in my own country, so it is not a problem.
     
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