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phario

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About phario

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  1. Both @hotmetal and @AdG essentially filled you in on similar details. Basically, in order to understand the origins of the Silvia vs. Classic debate, you have to go back in history and understand the situation in the late 90s when the Silvia was introduced. It was, as I understand it, the first prosumer-grade espresso machine that had significant build quality. It was also the hobby-enthusiast machine of choice, and spawned off interest into do-it-yourself PID controllers and modifications. A lot of this intersects with the early internet discussion forums. At the time, the Silvia w
  2. That's a tricky question, and you need to do your own homework because it's a long discussion and there are many discussions around on this if you Google "Gaggia Classic vs. Silvia". As someone who owns both, a used Gaggia Classic is overall the better machine for most people, compared to a used Silvia.
  3. Maybe a dumb question but isn't the thermocouple amp sufficient to read the K type thermocouple and convert to digital? Are you using it in addition to the ads115? How does that work?
  4. Would suggest to @Bon_Vivantto post picture and experience to the other thread as well so that we can gain a critical mass.
  5. Cheers, I absolutely hate it when information is lost in that fashion. If you have a moment, it would be nice to hear 1-2 paragraphs of what you remember of that CoffeeHustle discussion. Regarding temperature sensors, I have the same MAX31865 and actually I have a question that I'd love for your help on. From what I understand it, the MAX31865 board uses your Rpi SPI pins. However, the PiTFT screen uses this SPI interface. As I understand it, you can have multiple devices on these pins, but: Can you explain how you physically wire it? I guess you don't use the 2x20 GPIO header on
  6. Oh and also do you happen to have a copy of your Coffee Hustle post? https://coffeehustle.com/posts/q9EmQBBtPDKvFBGfv/controlling-espresso-extraction-through-real-time-flow-rate It's not obtainable on the Wayback Machine and I'm eager to get it.
  7. Or in my case, a million temperature sensors (digital, analog, PT100, thermocouple, etc.) and my dreams have degraded into a temperature probe comparison project. As you say, the individual components aren't expensive, but it adds up very quickly. Sometimes, it's just those misc. components like standoffs to create a sensor or components to read in the sensor data. Two more questions/points: I wonder if the max temperature issue on the DS18B20 will cause yours to degrade over time (even if it's not operational during the steam time). There were some scattered reports by people that
  8. Thanks! It's a bit annoying to wonder about those things because I think the 2.4 or 2.8" screens aren't cheep (are you buying the 'official' Adafruit ones or off brand ones? It's also annoying that the prices are somewhat random according to the screen size. There are some really nice 4" and 3.5" screens with better resolution that are not much more expensive.
  9. This is really amazing work. Will you share the current Github code for your scripts? I noticed the one that's linked on YouTube is a bit outdated. This is a random question, but how do you feel about the PiTFT 2.8" screen (which I assume you're using?). I recently bought the 2.4" hat version and I haven't installed it, but I'm getting a few pangs of "Should I have gone for the 2.8 version"?
  10. Possibly @FairRecycler might be interested. It's worth noting that a PID install of the Silvia is probably easier than the Classic on account of ease of access.
  11. I just want to cut in here to say this is such a great thread. Well done and carry on. I would love to hear history questions from people who know the history of the Gaggia Classic (not me), in addition to mechanical ones. One could imagine a "Jeopardy" style game with "History", "Electrics", "Bits & Bobs", etc.
  12. In the event the tamper falls through I'll wait in line.
  13. Just to be clear to people who might be confused, it's perfectly normal for this to happen. It just means that the pressure has not been vented. If you remove open the steam valve, it'll vent the pressure to zero. But most people wouldn't bother since it has not effect. Again just to be clear for ratty's sake, the machines have temperature control via the thermostat. In some cases, people want more fine-tune control, so they use a PID. Great work, @ratty. For some reason I thought you were taking a break! These are good prices for what it costs to buy a gauge and slim drip tray
  14. Just to be clear, this is just @FairRecycler's perfectionism at play. I have have one of his older PTFE designs (the 'failed' ones) that has served well and with largely minimal (but non-zero) flutter. It's pretty darn good. That said, I look forward to getting my hands on one of the newer designs
  15. Pretty simple question but aimed at people who have measured this. I'm interested in how the brew thermostat reading might be different than the steam thermostat reading. Has anybody manages to measure this?
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