If a picture is worth a thousand words, that video is worth so much more!
I'm with Ryan...when you return, pop that top and show us the mod.

This is great. Thanks so much, Peter! Today is dedicated to my first home roast session, but I bought a few extra parts from Phidgets while I was buying parts for my custom thermocouple build.pcrussell50 wrote:Ok back home now. First things first, made myself an espresso. Then I took the top cover off for the snaps you guys requested.
These are pics of the tube routing, POST mod. I tried to label the needle valve port "out" and "in"
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Hopefully you can see where the tubes terminate. Post back if you can't.
In the second and third pic you can see how I capped the hot water tube... I put the top cap of a spare BDB steam ball valve, into a $4 eBay ball valve that I am adapting to use in the BDB one day, and attached it in the standard "BDB way". Even better would be if you can route that tube under the solenoid to the right, and directly to the vacant, hot water outlet, and cap the bottom of that with the right sized cap (I'll find out what size later unless you beat me to it). Alternately, cut the Breville end off (save it and leave enough tube to splice back together if you want to return to stock), and cap the cut end with a fitting for 4mm tubing. 4mm tubing and fittings are very common out there.
OT: but in the first pic, you can see my brass OPV, and if you look really closely, you see that it is screwed down to the brass neck of the brass necked version of the Ulka pump I chose to use with the brass OPV.
-Peter
Mods for SR700? How did it go? We can discuss this in the roasting section.eltakeiteasy wrote:This is great. Thanks so much, Peter! Today is dedicated to my first home roast session, but I bought a few extra parts from Phidgets while I was buying parts for my custom thermocouple build.
My goal is to add some simple software (when I finally get some time) to incorporate the below for profiling:
Well? Hmmm... It's hard for me to say if they taste any better than the long slow, low pre infusion setting "Slayerlike" shots you do on a stock BDB with low pp settings. They sure look beautiful coming out, but I need more people to do this and discuss taste results. I'm afraid I'm just not sensitive enough in the tongue to give a firm answer. All I can say is that with the Slayer mod, the BDB pre infusion is through a low debit, but high pressure needle valve so the physical process is physically just like Slayer's "pre brew".eltakeiteasy wrote:This is great! Are you noticing any improvement in the cup, yet?