Decent Inside: how our espresso machine works
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- เผยแพร่เมื่อ 4 ส.ค. 2024
- This espresso machine works differently than any machine before or since. Two pumps heat water separately, and the pumps precisely mix the two streams of water at the last moment, to 0.3ºC accuracy. This setup also lets the Decent give you precisely the flow or pressure you indicate. Steam is at a super-hot-and-dry 160ºC, a full 30ºC hotter than boiler-based steam, and consequently more energetic and drier.
In this video, we show you how this is all accomplished in the hardware.
0:00 Intro
0:32 The water intake and water level detection
1:32 The pumps
1:58 Why we don’t use welded tubes
2:33 The water paths and manifolds: how we mix water
3:11 Explaining some of the colors of our water paths
3:50 Our heaters
4:21 How the Decent gets water to temperature so fast
5:05 Why we opted for vibratory pumps
5.39 Why are the Decent tubes so thin?
6:09 Why we use Teflon tubes in some places
7:01 How the sealing mechanism of our tubes prevents thermal cycling
8:25 The PC board compartment
8:35 DC board: Why and how we measure the electrical load of each component
9:31 The AC board: Which operating system does it run?
9:46 The side panel access: Why we use a Meanwell power supply
10:30 The power switch and its safety mechanism: What happens if you turn it on?
11:26 How the front power switch provides additional safety
12:08 The group head
12:19 Why we use a fiber glass insulator in the group head
13:04 The different temperature sensors in the group head and what they measure
13:41 Why the Decent has triple thermal safety in the group head
14:23 Why our thermal fuses are German-made
15:28 Design and functioning of our tubes
16:03 Why each tube and sensor is color coded
16:29 How our flush works
17:36 The over pressure valve: one more safety feature
18:06 How we re-circulate water back into the water tank until it’s ready
18:59 Why are there holes and air gaps in the bottom of the machine?
19:22 How steam works on the Decent and why voltage has an impact
20:27 Why the steam tube doesn’t have a valve
21:29 Why the Decent steam is different from other machines
22:00 The steam wand: what is “cool touch”?
23:03 The steam wand tip
23:20 How to change the steam wand
24:32 How the clip from Nestlé works, as seen on our steam wand
25:06 The back panel
25:12 The different plugs and entry points, explained
25:53 The cooling mechanism of our machine
26:43 How the Decent “communicates”: the Bluetooth board
27:36 What happens if Bluetooth 4 ever becomes obsolete?
28:00 How John’s journey as a programmer led to so many safety features in the Decent
29:08 Why we made things so easy to replace (and find)
29:57 Outro - บันเทิง
Absolutely awesome engineering and build quality. As a hobbyist DIY maker I can only imagine the years of hard work and many thousands of hours of R&D and prototyping required to get the machine to this level. Thank you for sharing!
This video has genuinely inspired me to consider getting this machine in the future. It's so well-crafted and thoughtfully designed. As a software engineer myself, my heart leaps with joy when I see a product like this. Kudos to Decent Espresso for such an outstanding job.
Yea, it sounds like this is the machine for you. Hopefully soon in the club 😉
I received mine last week (you’re almost up to 10K machines, I’m guessing). I made something decent on the third try. That third try was the third espresso I’ve ever made. I’m even more stoked after watching this video. The ultimate tinkerer’s machine that can also make espresso a few minutes after it’s turned on. As simple or complex as you want. Love the passion you guys have. Keep it up!
God damn, this thing is build as I would like it to build when I would think of concept for building something like this. I am impressed.
Metal screwdriver tapping all those nice shiny, scratchable looking components. It’s enough to make a grown-ass man cry.
My situation doesn't allow me to financially afford such a machine, but I'm always following you guys to admire your engineering and processes... and hopefully one day it will be time to get one. This, your transparency, the repairability, and your great customer support, is a combination that's very hard to find across many sectors. Keep this up :)
You guys deserve to be on every countertop
Excellent video. It’s good to see someone that takes pride in what they have designed and manufactured.
As well as, all the intricacies involved in making sure a product works.
These videos are inspiring.. i especially loved your last deep dive into the internals..... one day i hope to be lucky enough to own one of these...
Blimey. What a beautifully engineered machine. The inside of my Italian machine is a rats nest of wires and tubes by comparison!
Thanks for the fascinating insight
amazing detail! Thanks for sharing!
Excellent overview!
This was terrific! Good job and thank you for the clarity! Always glad to own the machine.
Very informative and interesting content for engineering-savvy audience!
Very impressive and informative! Well Done!
just awesome design and thinking through scenarios and longevity.
Great machine, excellent and helpful customer service. I have owned this machine for two years and I am very happy, it is the best ❤
Super cool! I really like the design philosophy - it really speaks to me. If only it were cheaper…
Great video and interesting.... don't need anymore convincing to buy XXL for my coffee shop, now if I could just sell my Athena leva and many UNIC Miras... even video had a safety ha ha
Very nice Design, I like it... there are rumors for new pumps? Any news on that?
Given how much information you shared about your machine (in this video but also before), and given the many good ideas you put in it (precise control, heat as little mass as possible), I am still wondering why we don't see a cheaper clone on the market yet. Any idea? :)
In any case, thanks for sharing, for me it's probably your most interesting video.
PS: "Free Arthas" (RTOS) gave me a good laugh :)
I love it! How does it hold up against ratteling. I would love to use it in my Caravan/Van but I am afraid it might brake due to the constant shaking.
In two month the Chinese bring this machine to the international market thanks to your good explanations!
Even chinese nowdays won't make it. they make a copy la marzocco gs for like 700usd. why would you need this delonghi plus a screen cheap machine.
Not using brass is great. I wish i could afford one.
also omg that handle.
this seems like a machine made by proper engineers :D Tho I don't get why it uses a full tablet with a battery to control things!
Group head is using brass
@@panchowterenie nooooooo
Did I hear it wrong when he says “…we’d rather not have any plastic in the water path…”?
All the water piping is solid Teflon. Isn’t Teflon a forever chemical? Any health concerns? I’m about to buy one but would like clarity on this question first. Thanks.
I have a question from overseas, Israel does not import these machines, and I am afraid of that, what happens in the event of a malfunction and there is no service in Israel, and if there a possibility of you remotely taking control of the machine for the purposes of updating, repairing, etc.
But... Burning Man is NOT a festival 😁
All this teflon used. SMH