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This “Old Pick and Place” – We make a tray for our pick and place for TQFP chips


This “Old Pick and Place” – We make a tray for our pick and place for TQFP chips – they usually cost $500, we made our own for under $50.

Parts list on the wiki!



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5 Comments

  1. Hi Limor! I must say that this is a really awesome item. Having a PnP one day keeps me up at night (just like 3D printing did).

    What would you judge to be the hardest part of developing a complete pick-n-place machine (open source, of course)? I’ve printed and built 3 RepRap’s, know how to work with a laser cutter, co-developed the Ultimaker.com and I know how to write firmware for 3D printers and the like.
    Of course a programmer would say that the mechanics are difficult, and a mechanical engineer would say that the software or electronics are difficult. So maybe you can name a few ‘challenging’ parts for each domain?

    I’m not trying to get the most accurate and fast system from the get go. I want it to be “good enough”, much cheaper and easier to customize and expand to arising unknown use scenario’s.

    Would it be ambitious or just crazy to try to develop a PnP that can be built for under 1K in parts? I think it should definitely be possible and that such a system has obvious benefits in terms of hackability and important DIY OSHW implications.

    Erik

  2. We use 80/20 in the lab I work at, and we’ve found the ideal cutting tool to be a swivel band saw, such as http://www.amazon.com/Horizontal-Vertical-Metal-Cutting-Band/dp/B000FVEDUM/ref=pd_cp_hi_3 I know that this is a little size-impractical for you, but as a recommendation for other people (or organizations) attempting this sort of project, it’s easier than a hacksaw, and if you are using 80/20 for a lot of things, the time saved quickly adds up.

  3. use Contraptor;

  4. first off love the name of the show, secondly, i thought that tray that she put the holder on was used to hold the PCB’s, or is there another tray for them? or do they go next to the tray for the QFP’s?

  5. Erik,
    building a PnP yourself is one thing I’m dreaming of too.
    And I don’t think it is so terribly complicated. You need a precise cartesian robot, but given you do not have to move heavy weights, that shouldn’t be a mechanical problem. Compared to a 3D printer you need a good picking system and a way to rotate parts.
    The rest is software. More complicated than a 3D printer as you probably need a feedback system with computer vision. But still no magic.

    Let me know if you ever want to tackle this project. I’m a software guy (but built a 3d printer too), so maybe I can help.

    Andreas

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