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Suped-up Sunbeam (Slayer style) haha

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  • Darkfalz
    replied
    Excellent modding. It would be interesting to have a machine with fully programmable pressure profiles too. Doesn't the EM4800 have a concave shower screen though? I would have thought that in of itself was a big problem.

    Leave a comment:


  • GregW
    replied
    Hey C-man

    Firstly I thought'd I'd say that I've been very impressed with what you've done to your SB.

    I'm looking to do the same to my 4800, I'm just curious as to what the line pressure control does and where it is plumbed into.
    Also if you could give a bit of info on how you modified yours to include these two mods I'd be very happy!


    Thanks

    Leave a comment:


  • C-man
    replied
    Originally posted by coffeecherries View Post
    But does it have 3 way valve??
    not sure if it does, most likely not

    either way the machine works great, I am very happy with it.

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  • coffeecherries
    replied
    But does it have 3 way valve??

    Leave a comment:


  • C-man
    replied
    Originally posted by q3rasta
    Hey C-man just got the the guage & OPV from Stephanos, is it worth doing the Line pressure control valve & the pump speed controller if so where do i get them from?

    thanks Chip
    So how did you go with it?

    Leave a comment:


  • C-man
    replied
    I am able to do in my own crude cheap way what these guys are doing

    Joel Pulling Shots On His Slayer - YouTube

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  • C-man
    replied
    Originally posted by q3rasta
    Ive got the controversial baratza preciso
    IDK that grinder, but looks like it should do the job ok.

    Leave a comment:


  • C-man
    replied
    This mornings shot

    should have cleaned the dust off the machine hehehe
    Attached Files

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  • C-man
    replied
    The way I did it was to grind a fine tight puck, start with the valve about midway or wherever does not matter, start pulling a shot,

    when the gauge peaks start adjusting while the super tight shot is running or dripping or even choking, it is pretty easy to do with a screwdriver use a big cup so you have plenty of time

    you can use the same puck over and over if you need to.

    What grinder are you using?

    Leave a comment:


  • C-man
    replied
    Did you cut some of the threads off the OPV before screwing into the pump?

    otherwise you can damage the pump!

    Just Teflon tape and plenty of it should do the trick.

    You will also need to drill the rivets out that support the pump or cut the rubber holder to make room to spin the OPV the repair it again to keep the pump quiet.

    Leave a comment:


  • C-man
    replied
    Originally posted by q3rasta
    Hey C-man just got the the guage & OPV from Stephanos, is it worth doing the Line pressure control valve & the pump speed controller if so where do i get them from?

    thanks Chip
    not really necessary, and a lot of extra work, try it without first, but I like it for softer beans it works at treat.

    the pump speed is just a fan control/dimmer from Bunnings $36.00 (it took a few weeks to cook in) the line pressure control is a ball valve lever (needle valve would be better) from Reese plumbing supplies.

    WARNING be bloody careful with fan control/dimmers as they hold a charge and gave me one hell of a shock!

    check this out --- Pressure profiling with a cheap supercharged Sunbeam EM4800 - YouTube

    Leave a comment:


  • C-man
    replied
    Video

    pressure profiling - YouTube

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  • C-man
    replied
    Originally posted by q3rasta
    Nice work C- man i opened up a brevile Cafe Roma this morning it doesnt look as if there is enough room inside. some one gave me a sunbeam EM480 i am really tempted to do this mod where did you get all the parts?
    Karl has a list of the parts and where he got them in this thread

    http://coffeesnobs.com.au/brewing-eq...shots-now.html

    Leave a comment:


  • C-man
    replied
    Originally posted by blend52 View Post
    Is there some correlation between "Soft / Hard beans" ..and "light roast , dark roast ".. ?
    Or is this a completely different categorization. ?
    Sort of yes- Softer beans are just more delicate

    Soft beans still can be roasted to any depth, however they are more sensitive and most roasters with start them on a lower heat.

    also darker roasts on softer beans tend to degrade the structure of the bean, so softer beans do like lighter roasts, darker roasts work but have a shorter life.

    I am sure there is much more to it, but that is as much as I know, Hope that helps.

    Leave a comment:


  • blend52
    replied
    Is there some correlation between "Soft / Hard beans" ..and "light roast , dark roast ".. ?
    Or is this a completely different categorization. ?

    Leave a comment:

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