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  • Electronic pressure control

    Woo hoo! I just got my electronic pressure control idea tested and it works.

    Still a few things to sort out, but I turn a dial and the electronics changes the pressure. The first stop will be variable and adjustable pre-infusion (ie pressure and time) and adjustable brew pressure. Eventually I might look at pressure profiles as well.

    The good thing is no fancy pumps are required. These are all off-the-shelf components and relatively cheap (sourced from coffeeparts. Thanks Pedro).

    Cheers,

    Mark.

  • #2
    Re: Electronic pressure control

    Cmon Sparky, you cant leave it there.

    Tell us more, any photos or perhaps a description?

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    • #3
      Re: Electronic pressure control


      Im keeping the lid on this one for now. Besides Ive only shown proof of principle, not a working device. Ive also modified the key component a bit, as it is not designed for what I want. For example Im using it backwards. Theres also an inbuilt hysteresis that Im trying to get rid of.

      I post more if I get it running more smoothly with the mods Ive made...

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      • #4
        Re: Electronic pressure control

        Hmm is it a dust buster with a variac

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