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Thread: Cardboard PCB!

  1. #1
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    Default Cardboard PCB!

    Tonight, I attempted to point to point wire a stanham driver on a peice of perfboard. I did find an error, but fixing it still didn't get the driver to work. So I did a bit of thinking, but couldn't get access to any PCB etching equipment, so I decided to go completely DIY! I printed out the overlays, glued them to a peice of cardboard, used a pin to poke the holes, and started assembling!

    An hour or 2 later, this is what I ended up with:





    I'm extremely impressed at how well this turned out, now all that remains is to see if the driver itself works

    Cheers,
    Dan

  2. #2
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    That's pretty cool, Dan.

    Never thought of that idea. Don't see why it shouldn't work.

    Cool.

  3. #3
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    Ha! that's mint Dan

    You would be a handy man to have around when your car breaks down in the middle of the desert

    Now if my world clock reads correctly you posted this at 2:46am......

    Go to bed Dan!!!

    You're a sick puppy!

    Oh hang on a second, it's nearly 1am here..... time flies when you're having fun hey?

    Like your work mate.

    Respect
    Kit

  4. #4
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    Hahah thanks

    Yep, off to bed now. Just tried it and dont seem to be getting any voltage from the output

    But, it's 3am, will try it again tomorrow when I can think straight

  5. #5
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    Thats really cool.

    Although reason to not function, im sure you allready checked this but if you havent it can be the, what looks to be some pink fluid, in sweden we call it "Fluss" to make the soldering go easyer.

    Think you allready have checked this, but on the picture it looks moistry and even like drips.

    Otherwise cool idea. perhaps not certifiable as cardboard is easy flamable if hotted. but.
    Attached Images Attached Images

  6. #6
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    Very resourceful A++
    http://img62.imageshack.us/img62/3985/laser.gif

    Doc's website

    The Health and Safety Act 1971

    Recklessly interfering with Darwinís natural selection process, thereby extending the life cycle of dim-witted ignorami; thus perpetuating and magnifying the danger to us all, by enabling them to breed and walk amongst us, our children and loved ones.





  7. #7
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    Cool idea! Plastic instead of cardboard would help the durability.

    Mike

  8. #8
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    The pink stuff around the connectors etc is super glue, just so they don't wobble as much

    The cardboard is actually quite durable. I was thinking about plastic, but couldn't find anything suitable.

  9. #9
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    Thumbs up

    It is all fun and games till that beast sets on fire somehow... Nice work though!
    Love, peace, and grease,

    allthat... aka: aaron@pangolin

  10. #10

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    Now that's creative! A fine piece of DIY

  11. #11
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    Hmm, weird that it doesnt seem to be working. Get about 1V on the output, but no current at all, and adjusting the pots does nothing. Then again, maybe my transistor is dead ...

    Why do all the flexmods have to be out of stock

  12. #12
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    Thats generally what i use this stuff for

    http://jaycar.com.au/productView.asp...T&SUBCATID=255
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  13. #13
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    Quote Originally Posted by dave View Post
    Thats generally what i use this stuff for

    http://jaycar.com.au/productView.asp...T&SUBCATID=255

    Or these for a test run...



    Although, I use foam board and paper layouts to build mockups of boards before I have them produced. Definitely a good way to make sure everything fits right.

  14. #14
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    I did try on some experiment board and a breadboard, but they all had the same problem, and that is my point to point wiring sucks

    I used this method so I could just follow the traces, but it still doesn't work ...

    Anyone got a flexmod? ....

  15. #15
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    Anyone see any problems using the TIP41C instead of the BD437?

  16. #16
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    This reminds me of something a rather clever sound engineer told me many years ago.

    Said engineer was unfortunately incarcerated for a couple of months due to being found in posessiion of certain recreational substances. During his time away, he embarked on a creative project to keep himself busy and enroled in a number ot art activity classes.

    Creative use of a piece of cardboard and a number of foil wrappers from chocolate bars enabled him to build a rudimentry PCB. An old transistor radio provided some usefull electronic components and within a week he has a working FM transmitter.

    This was coupled with his cell mates cassette player and "Prison FM" went live. They broadcasted for a couple of hours each evening and were even taking requests for the pricely sum of 1 cigarette.

    Everything was going well for the first couple of weeks and would have probably gone on for longer. Except that one elderly local resident phoned the prison governor and asked for a request.

  17. #17
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    Things you probably already checked:

    1. Polarization of the diodes:
    2. Pinout for transistors (maybe turned around the transistor), if using a replacement (i mean substitute) see if pinout is the same. Sometimes this is different (base and collector switched around).
    3. orientation of ic
    4. power to IC ? (some schematics don't have plus and minus drawed al the way to the ic)
    Since you used a pcb layout this must be ok.

    Looks nice ! SUcces hope you get it to work, electronics is always cool, but when it works it's less cool ;-)
    I didn't fail !
    I just found out 10,000 ways that didn't work.

  18. #18
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    Quote Originally Posted by Things View Post
    Anyone see any problems using the TIP41C instead of the BD437?
    The TIP41C has much lower HFE (DC current gain) so might require more base-emitter current. It should work ok I think.
    This space for rent.

  19. #19
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    Quote Originally Posted by Things View Post
    Anyone see any problems using the TIP41C instead of the BD437?
    The pinout is backwards?
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  20. #20
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    Quote Originally Posted by dave View Post
    The pinout is backwards?
    No it's not?

    15chars

  21. #21
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    According to the datasheets they are!

    I think maybe you just found your problem..


    Quote Originally Posted by Things View Post
    No it's not?

    15chars
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