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Thread: Anyone like to join me in building an SMD PCB flow oven ?

  1. #1
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    Default Anyone like to join me in building an SMD PCB flow oven ?

    As new designs come online, in many electronic project areas, it is getting harder and harder to get away from smd parts.


    Note: Check post #14 for the list of participants

    I am one of those folks that hate hand soldering smd parts. A few are pretty easy, but the tiny resistors and many legged micro-processors are nearly impossible for me to do by hand without extreme frustration especially with a high part count board.

    If you feel the same way... keep reading....


    For those of you that don't know, there is a way to make these pcbs, without a soldering iron in hand.
    It's known as an smd solder flow oven.
    Here are a couple of writeups about DIY smd ovens:
    http://www.freetronics.com/pages/sur...n#.VCmEOhZbS7I
    https://www.sparkfun.com/tutorials/60

    Avoiding smd based boards is getting very hard when you see the amazing blinky flash designs that have many surface mount devices like the Floodbrain or the Raptor12.
    Floodbrain: http://forkineye.com/electronics/flo...dlight-system/
    Raptor12: http://hackaday.io/project/1092-Rapt...less-AC-Dimmer

    Accordingly, I've been looking at the various open source smd solder flow ovens available online.
    The ready to run ovens are expensive and quite frankly, they don't get good reviews. (e.g. T961. T962, etc)
    On the other hand, the open source, DIY projects look very good for the effort and money expended.

    I've been looking at these projects for a few years now and have decided to build one.

    Here is the board/project I have selected:
    https://www.tindie.com/products/0xPI...ino-pro-micro/
    (click on the 'source code' button to the right for more in-depth information)

    Hackaday announcement: http://hackaday.com/2014/06/16/reflo...h-graphic-lcd/

    2014-08-03T12:36:40.845Z-photo.JPG.2560x2560_q85.jpg
    CycleWithOverflow.jpg

    I like this design for many reasons.
    - Its well documented and seems very well thought out
    - Its open source, hardware and software
    - Has controls for both the heating element and the circulation fan
    - It uses an off the shelf Arduino pro mini for the processing brains (cheap and well understood)
    - Very small parts count
    - Has a full color graphic display

    I have ordered 10 PCBs which will be arriving this coming friday.
    I would like to sell up to 8 of these to anyone else that would like to join me and build this project. ($5)
    A shared build experience is always a good thing.

    There is only one odd part in this project and that is the heatsink.
    I can't find it anywhere but in europe. So, if you would like to join me in this adventure, let me know so I can buy all the heatsinks at once and only pay the extreme shipping cost once.

    So, if you are interested in doing this, please post and send me a PM for more details.
    Last edited by ukewarrior; 09-30-2014 at 08:59 AM.

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  3. #2
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    Default Re: Anyone like to join me in building an SMD PCB flow oven ?

    Im interested, pm coming.
    "Some let things happen, others make things happen. Which are you?"
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  4. #3
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    Default Re: Anyone like to join me in building an SMD PCB flow oven ?

    Not sure how to pm on my phone. May have to wait until tonight.
    "Some let things happen, others make things happen. Which are you?"
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  5. #4
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    Default Re: Anyone like to join me in building an SMD PCB flow oven ?

    I am in for one. I just purchased another kit from Tindie but I do not mind switching to be part of a group build. I like the display of this one too. I do have a time frame though. What is the estimated time you plan to have the build complete. I would like to get mine built within next 2-3 weeks.

  6. #5
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    Default Re: Anyone like to join me in building an SMD PCB flow oven ?

    Still haven't done it yet but this could also be a good idea. less area to heat. And likely a more even heat.
    http://www.electricstuff.co.uk/smtoast.html

    This could be a good candadent (flat sides).
    http://www.amazon.com/Hamilton-Beach...ywords=toaster


    Also as a side note i find the smd micros very easy to do but you need the right tip. A big chissel or well type tip and it workes really well and is way faster than a dip micro.

    I was being lazy the other day i tried to do a micro with a small conical tip man, i can see where frustrations come from, that and crappy solder is where i think most people go wrong. If you see on my raptor board i made the leds pads extra wide, also make soldering them way easier, even though they are a 0603 package.

    You want a pack for your iron.
    http://www.ebay.com/itm/10PCS-Solder...-/170996602318
    Last edited by kingofkya; 09-29-2014 at 01:07 PM.
    "Jack of all trades, master of none,

    Certainly better than a master of one"
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  7. #6
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    Default Re: Anyone like to join me in building an SMD PCB flow oven ?

    I'm interested. The last time I soldered an SMD part, it looked like I did it with the tip of a ballistic missile.
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  8. #7
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    Default Re: Anyone like to join me in building an SMD PCB flow oven ?

    I have the SparkFun Oven controller - the only negative is it does not have a 'cooling' option (i.e. fan control) so I do have to manually open the door a bit at the end - not precision but it follows the curve close enough for the post soldering portion. I like the display on this as well - min has a simple 2-liner non-backlit LCD which works - but not as snazzy as this.

    I used a Black&Decker oven with four elements I got from Walmart for $34 - I haven't used for a while but may drag it out for the 10W LED board I got from RobG (even though they do not look too hard to do by hand).

    http://christmasinsj.com/wordpress/w.../09/BDOven.jpg
    http://christmasinsj.com/wordpress/w...Controller.jpg
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  9. #8
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    Default Re: Anyone like to join me in building an SMD PCB flow oven ?

    Quote Originally Posted by XmasInGalt View Post
    I'm interested. The last time I soldered an SMD part, it looked like I did it with the tip of a ballistic missile.
    Sounds like not enofe heat or flux
    "Jack of all trades, master of none,

    Certainly better than a master of one"
    Projects:
    [URL]http://hackaday.io/project/1092-Raptor12-AC-light-controller[/URL]

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  10. #9
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    Default Re: Anyone like to join me in building an SMD PCB flow oven ?

    So we are looking at about $80 plus the oven? I have a cheap oven, got it last year and haven't even opened up the box yet.
    2009 - 48 channel MegaTree 4800 lights
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  11. #10
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    Default Re: Anyone like to join me in building an SMD PCB flow oven ?

    I'm in my friend.
    [IMG]http://s.vixenplus.com/510[/IMG]

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