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"Press N Peel" alternatives for laying out PCB? — Parallax Forums

"Press N Peel" alternatives for laying out PCB?

MorrolanMorrolan Posts: 98
edited 2007-10-18 01:15 in General Discussion
Hi guys,
I want to start etching some of my designs onto proper boards rather than breadboard (433Mhz stuff likes minimal track lengths etc, and really doesn't like breadboard) but here in the UK we have 4 options:

1. Professional Manufacture. Too expensive for one-offs.
2. UV Lightbox and pre-sensitised board. Again, too expensive with UV boxes about £100 minimum ($200+)
3. Pen/Scratch transfer sets. Too innacurate.
4. "Press N Peel".

Now, Press N Peel is this paper you print to from a laser printer or photocopier, then press onto the copper and iron on. Thing is, this stuff comes in packs 5 A4 sheets, and costs £15 a pack! If I only want to make a 40mm x 60mm board (common for me) then I'd end up wasting a sheet each time.

What alternatives do I have? I'd prefer to source from the UK if possible, but if the price + shipping is still economical, I will gladly ship from the US.

confused.gif

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Flying is simple. You just throw yourself at the ground and miss.

"I think computer viruses should count as life. I think it says something about human nature that the only form of life we have created so far is purely destructive. We've created life in our own image."
Stephen Hawking

Comments

  • GadgetmanGadgetman Posts: 2,436
    edited 2007-10-16 10:26
    You don't have to use an entire A4 sheet...

    you can cut a piece and tape it to a stiffer sheet, then send it through.
    (Just make certain that the printer can take 'heavy' paper, 160grams or more)

    You can also use special felt-tip pens to draw your design directly onto the copper and etch.
    It may not look as nice as the 'pro' methods, but it works OK as long as you don't need to work with SMT components. (If you have a steady hand you could possibly do the larger SMT types)

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    Don't visit my new website...
  • Steve JoblinSteve Joblin Posts: 784
    edited 2007-10-16 15:59
    There isn't anything "special" about PressNPeel... good quality photo paper will work just as well... hunt around on the site mentioned by bobledoux above for certain brands that are considered better than others (the most expensive is not necessarily the best!!).
  • FranklinFranklin Posts: 4,747
    edited 2007-10-16 19:59
    Most laser printers will take cards and envelopes. I printed some 3x5 (INCH) receipe cards for my wife just last week.

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    - Stephen
  • pwillardpwillard Posts: 321
    edited 2007-10-16 22:06
    See: http://forums.parallax.com/showthread.php?p=667416


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    There's nothing like a new idea and a warm soldering iron.
  • JavalinJavalin Posts: 892
    edited 2007-10-17 09:26
    I used to press-n-peel in the UK. My answer was www.expresspcb.com for when I needed a proper PCB for a surface mount project - its more expensive but unable to do it any other way.

    Also I found that using the same code and the same circuit - the expresspcb board performed better - i.e. less errors and un-explained "issues"

    J
  • MorrolanMorrolan Posts: 98
    edited 2007-10-17 12:38
    I've looked at ExpressPCB and found a much cheaper european equivalent (especially now with RoHS laws on lead content) called Euro-Circuits, but I need to be able to test various prototypes at home, and I can only afford to have them fabbed professionally when the initial test designs are finalised.

    I'm going to experiment with toner transfer, but I think press n peel cut off and tacked to normal paper might be my best bet.

    Does anyone know of a cheap supplier of press n peel, anywhere in the world? I'm sure you can buy it cheaper than £3 / $6 a sheet somewhere in the world... freaked.gif

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    Flying is simple. You just throw yourself at the ground and miss.

    "I think computer viruses should count as life. I think it says something about human nature that the only form of life we have created so far is purely destructive. We've created life in our own image."
    Stephen Hawking
  • JavalinJavalin Posts: 892
    edited 2007-10-17 15:39
    www.mapin.co.uk sells them for a about £15 per pack of 5 - so still £3 a sheet.

    Wouldn't you prototype on a breadboard? then move the circuit to a PCB?

    J
  • MorrolanMorrolan Posts: 98
    edited 2007-10-17 16:19
    It's Maplins prices that I'm trying to beat!

    Yes I've prototyped on a breadboard, but I'm currently working on 2 projects:

    1: With the 433Mhz transmitter and receiver system I'm making to remotely control a turret system, I need to keep track/wire lengths to a minimum to find the optimum layout for the antenna etc. This will require some experimentation, so getting my boards fabbed is too costly.

    2: The second project is a wearable device for arthritis sufferers, and is designed to be as slim and low profile as possible. My partner suffers badly, so she has agreed to be my guinea pig and wear the various incarnations of the device as I make it smaller and smaller, going from through-hole to SMT to OEM stamp kit and building the stamp right into the board.

    At the moment the smallest I can make the board in eagle using a standard stamp is 25mm x 45mm (mounting components under the stamp). I will get the boards fabbed professionally when ready, but i'm still a long way away from that.

    Also, this must be worn on the forearm and not be visible under a loose sleeve, so you can see why my misses wouldn't want to wear a breadboard full of wires on her arm smilewinkgrin.gif

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    Flying is simple. You just throw yourself at the ground and miss.

    "I think computer viruses should count as life. I think it says something about human nature that the only form of life we have created so far is purely destructive. We've created life in our own image."
    Stephen Hawking
  • JavalinJavalin Posts: 892
    edited 2007-10-17 18:29
    >why my misses wouldn't want to wear a breadboard full of wires on her arm!
    fair enough then!

    J
  • crgwbrcrgwbr Posts: 614
    edited 2007-10-18 01:15
    I've used ExpressPCB for pro boards, great results. For prototyping, I use the paper and film made by Pulsar Professional FX. It seems to work pretty well, though it's not as fast as they say it is (unless you do it all day, every day).

    Regards,
    Craig

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