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  • #16
    Re: Filter Baskets

    Thanks, nelo.

    I went and bought a second sunbeam pressurised basket (so i could keep the original for stale beans ) and stuck it on a lathe to cut the bottom off.

    Ive put a picture here for those interested. It turns out that it is not quite as simple as you might think, mostly because the basket has a springiness and as you try to cut into it, it tends to deflect away. As you can see, tried near the centre first, then further out, but finally, it worked best right out near the edge. Also deformed the basket rim flanges a bit using the 3-jaw chuck, so needed to gently tap them back into shape. The things we do...

    Yes, Ive backed off on the grind fineness and am now tamping harder. Still get a few grinds, but Ive decided I can live with it.


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    • #17
      Re: Filter Baskets

      Originally posted by 1C24252013062322293F4C0 link=1234064740/7#7 date=1235468251
      Sixthly, the krups is a looser fit in the SB group handle, but not too bad, just need to be careful you dont knock it out into the knock box.

      Go buy yourself a new 58mm spring. Pop it in, should solve your problems. I know in the 51mm Breville handle that I have (dont ask why :P) it has a 58mm commercial spring in it.

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      • #18
        Re: Filter Baskets

        hey...so seriously...where can I find a krups non-pressurised 51mm filter basket for my Sunbeam E3800 in Melbourne?

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        • #19
          Re: Filter Baskets

          Hey TassieBean,
          I thought I was the first to turn off a basket bottom on a lathe, but you got in 2 weeks before..
          Damn you.
          Now that I have that out of my system, I have attached pics of the hole comparison between my modified SB basket and my Saeco basket.
          Saeco has twice the amount of holes and approx half the diameter compared to my sunbeam.
          Unfortunately the Saeco basket has an OD of 55mm and the Sunbeam has OD 53mm. Therefore not useable in my SB machine.

          With reference to your lathing experience.
          Also deformed the basket rim flanges a bit using the 3-jaw chuck,
          Most metal lathes have stepped face jaws, I was able to fit the jaws inside the basket and tighten outwards.

          as you try to cut into it, it tends to deflect away
          I used a toolbit with a 45degree point and fed it in super slow. Your attempt looks like you used a parting tool that may have been blunt.

          In the pic of the 3 baskets you can see I also attacked my single basket just for fun. It pulls an alright shot now.

          Here is my youtube submissions using the modified & non modified baskets.
          http://www.youtube.com/user/mrseca


          Also both hole photos are the exact same scale.






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          • #20
            Re: Filter Baskets

            Mrseca,

            Nice job! You can turn up my baskets anytime! Actually, you might run a little business doing this on the side for CSs.

            Its just a damn shame SB and the others dont just sell one ready to go (with small holes). Anyway, been using mine for a while now, and works a treat.

            Focussing on the perfect rosetta now!


            TB

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            • #21
              Re: Filter Baskets

              Question... If u dont have a metal lathe what else could u use to cut out the base of the SB basket??

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              • #22
                Re: Filter Baskets

                I used a small fibre cutting disk on a Dremel tool. It took about 10 minutes or so to do a Breville double floor basket.

                Greg

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