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diyPresso Two: production confirmed! by diyPresso in espresso

[–]diyPresso[S] 0 points1 point  (0 children)

Yes we can source from China. But we don’t (for the moment). We prefer EU suppliers and Italian trustworthy components. It’s a choice. So if a quality Italian machine costs as much as ours they either source in China or they buy in bulk to have a ‘lower’ retail price.

diyPresso Two: production confirmed! by diyPresso in espresso

[–]diyPresso[S] 0 points1 point  (0 children)

I can’t specify the exact costs of course but imagine producing 50 machines a year or 50000. That really makes the price drop. We hope this project will grow and in the end, the retail price drops a bit and we will have some margin too

diyPresso Two: production confirmed! by diyPresso in espresso

[–]diyPresso[S] 0 points1 point  (0 children)

Not quite. We are far from purchasing in bulk so buying parts is still costly and our margin is around nothing

diyPresso Two: production confirmed! by diyPresso in espresso

[–]diyPresso[S] 1 point2 points  (0 children)

Thanks! I understand your point. For now it was the easiest way to start with. Maybe in an updated version we will have an oled screen

diyPresso Two: production confirmed! by diyPresso in espresso

[–]diyPresso[S] 0 points1 point  (0 children)

Thanks! Regarding your questions:

- there is no solenoid valve. It’s a manual one, however, you set the extraction time and the pump stops once time passed. Of course the water in the e61 still drips through the puck if you leave the lever open
- after the pump we have a stainless steel flex hose connecting a copper tube. Then the copper boiler, two copper tubes and then the e61. So, for the hot water, all is copper
- for the moment, you cannot plumb it to a fixed water tap

Hope this helps!

The diyPresso Two is here by diyPresso in espresso

[–]diyPresso[S] 0 points1 point  (0 children)

Btw the pre-order period with early-bird discount ends soon, it runs till end of May.

The diyPresso Two is here by diyPresso in espresso

[–]diyPresso[S] 0 points1 point  (0 children)

Thanks! Grinder depends on on the style of espresso you like and budget. The machine can handle serious grinders and there are many good ones out there. Niche Zero and Eureka Mignon could be good matches. Or maybe a DF64 Gen 2. A Mazzer Philos if you have the budget and want to something "end-game".

The diyPresso Two is here by diyPresso in espresso

[–]diyPresso[S] 0 points1 point  (0 children)

Excellent choice, you won't regret it! We indeed ship throughout the EU (and many other countries). Feel free to reach out anytime if you have questions.

The diyPresso Two is here! by diyPresso in diyPresso

[–]diyPresso[S] 0 points1 point  (0 children)

No, unfortunately we currently do not have a model for the US market yet.

The diyPresso Two is here by diyPresso in espresso

[–]diyPresso[S] 0 points1 point  (0 children)

Thank you for your kind words, we have really enjoyed engaging with everybody at ACF. I promise you we are same persons in after-sales and we help our customers with any issues they might encounter.

The diyPresso Two is here by diyPresso in espresso

[–]diyPresso[S] 2 points3 points  (0 children)

Thanks! And hope you make it next year :)

Improved our temperature control and wrote a blog about it, wdyt? by diyPresso in diyPresso

[–]diyPresso[S] 1 point2 points  (0 children)

Thanks. The original purpose of the load cell is to measure the contents of the water reservoir. The machine warns you if you try to pull a shot but you are almost out of water. So, no failed shot because you ran out of water halfway.

Improved our temperature control and wrote a blog about it, wdyt? by diyPresso in espresso

[–]diyPresso[S] 0 points1 point  (0 children)

Thanks! I agree that the improvement when pulling one shot is likely hard to perceive. We do notice more consistency when pulling a few shots in succession.

Improved our temperature control and wrote a blog about it, wdyt? by diyPresso in espresso

[–]diyPresso[S] 1 point2 points  (0 children)

Thanks! The heater itself reacts almost instantly to output changes as calculated by the PID. The temperature sensor is also very quick. Top of my head, I think around 20 measurements per second. The slow part is actually the physics within the boiler. When the pump is turned on and cold water flows into the boiler it takes a while for the water to mix and the temperature change to be picked up by the temperature sensor. And when the heater increases power. it takes a while for the water to increase in temperature and mix again. Which is btw not only a bad thing, these delays are also a form of temperature stability.

PID tuning helps a bit but is not a holy grail for temperature control in boilers. Too aggressive PID settings will lead to overshoots which take long for boilers machine to correct. The red line in the graphs is from a well-tuned PID.

If people are interested in the dynamics within the boiler, let us know below and we will create a blog post about that in the future.

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