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Hey there,
First of all: congratulations for this great project! I really like the approach and especially the fact that you open sourced your code.
My question: do you have any plans to integrate profiling functionality like pressure, flow or temperature profiling? Would this even work with the current hardware setup?
Regards,
Marco
Hi Marco,
Thank you and great questions! I'm Joop and I'm the CTO and main software person of diyPresso.
The diyPresso One already has some basic form of pressure/flow-profiling in the form of pre-infusion. It has mechanical pre-infusion as part of its E61 group head. Secondly, the current firmware allows you to configure an additional pre-infusion step as part of your brew cycle. It allows you to configure the timing and duration of a pause of the pump early in the cycle when pulling a shot.
But, as true coffee-nerds, we long for more. We plan to implement a more advanced version of flow profiling in a future firmware update. This will be compatible with the current hardware. We believe we can achieve this using the existing weight sensor under the water reservoir in combination with pulse width modulation (PWM) of the pump. This is currently in the research phase.
For further down the road we might consider adding a digital pressure sensor to the machine, which would likely be made available as an hardware upgrade for existing users.
With regards to temperature profiling: the diyPresso One has been designed with temperature stability in mind. It has a large boiler and a very heavy group head. This could make it hard to do something very dynamic with temperature, but a temperature profile within a limited range might be possible. Its heater is quite large for its size and due to the weight sensor under the reservoir it knows exactly the amount of cold water ingested into the boiler. This could be an interesting feature to look into in the future.
Are there any specific profiles or goals you would like to achieve with pressure, flow and/or temperature profiling?
Let me know if you have any further questions on any of this.
Best,
Joop van Heekeren
The E61 brew group, a hallmark in espresso machine design, revolutionized coffee extraction since the 1960s. Its iconic thermosyphon system maintains temperature stability for optimal brewing. With its timeless engineering and widespread adoption, the E61 remains a cornerstone of espresso culture, prized for its reliability and consistent results.
The analog pressure gauge comes standard with the diyPresso and is premounted on the E61 brew group. Track the pressure while brewing and adjust it through the over pressure valve for better brewing results.
The diyPresso boasts a bespoke, Italian-crafted boiler at its core, meticulously placed in the machine’s heart. Handcrafted to perfection, this custom-made boiler ensures superior heat retention and distribution, vital for exquisite coffee extraction. Made in Italy, it embodies the nation’s legacy of precision engineering, elevating diyPresso’s performance to unparalleled heights.
The diyPresso features an aluminum profile frame, offering robustness and reliability, complemented by precisely laser-cut stainless steel sheets. These sheets not only enhance the machine’s durability but also provide a contemporary aesthetic appeal. With open sides, users can easily peer inside, adding a sense of transparency and engagement to the brewing process.
1,5 Liter container
ULKA vibration pump EX5
Unit by pass Domobar OPV
Custom made 0,6 liter copper boiler with connections for water inlet, water outlet, thermostat, heating element and PT1000 temperature sensor.
1300W
E61 Lever brewing group with analog pressure gauge (manometer)
Thermostat 104° auto reset
Arduino MKR1010 WiFi, BT, SAMD21 Cortex-M0+ 32 bit ARM
DEBO HX711-05
H-Tronic brass screw-in sensor PT1000
SSR-25-DA
ARD SHD P MKR L Arduino Shield – Proto Shield MKR
Adafruit PT1000 RTD Temperature Sensor Amplifier – MAX31865
DEBO LCD 20X4 BL
Rotary Encoder Module
Meanwell RS-15-5 5V
The diyPresso boasts a sleek and durable design, featuring an aluminum profile frame with laser-cut stainless steel panels that exude sophistication and robustness. The use of high-quality materials ensures longevity and a professional aesthetic. The unique open side panels offer transparency, allowing you to admire the internal components, fostering a sense of engagement and understanding of the machine’s mechanics.
At the heart of the diyPresso lies a custom-made copper boiler sourced from Italy’s and the Netherlands’ top manufacturers, ensuring superior heat distribution and performance for perfect espresso extraction. This premium component reflects the machine’s commitment to quality and authenticity in espresso brewing.
The design philosophy behind the diyPresso extends beyond aesthetics; it emphasizes sustainability and user empowerment. By assembling the machine yourself and having visibility into its components, maintenance and part replacement become straightforward tasks. This not only enhances sustainability but also ensures that the diyPresso remains a long-lasting investment, reducing the need for frequent replacements and minimizing environmental impact.
Each diyPresso is distinguished by its unique serial number and custom tag on the rear panel, making every machine a one-of-a-kind creation. This personalized touch adds a sense of exclusivity and individuality to each unit, reflecting the craftsmanship and attention to detail that goes into every diyPresso.
The custom numbering and tagging not only enhance the machine’s aesthetic appeal but also creates a personal connection between the owner and their espresso maker. It’s a testament to the care and pride invested in the production of each diyPresso, ensuring that no two machines are exactly alike.
With only a numbered of diyPresso’s produced annually, owning a diyPresso means you are part of an unique product, process and experience. This commitment to uniqueness underscores diyPresso’s dedication to delivering not just exceptional espresso but also a truly personalized and memorable brewing journey.
The diyPresso’s open-source software, built on an Arduino controller, empowers users to customize and enhance their espresso brewing experience. This flexibility allows enthusiasts to modify existing functionalities, add new features, and fine-tune settings to achieve the perfect cup of espresso. By leveraging the open-source nature of the software, users can contribute to espresso innovation by experimenting with different brewing parameters and sharing their insights within the community.
Being part of the open-source community associated with diyPresso means users can collaborate and learn from others, fostering a culture of continuous improvement and creativity. Contributions and modifications can be shared via the diyPresso’s GitHub platform, enabling a collective effort to push the boundaries of espresso-making technology. Our forum can be used to connect with other users to enhance the espresso-making experience through tips, troubleshooting, and shared knowledge. With this open (software) approach, diyPresso offers not just a coffee machine, but a platform for espresso enthusiasts to explore, innovate, and collectively elevate the art of home brewing.
The user interface of the diyPresso is designed for intuitive control and detailed monitoring of your espresso-making process. Central to this interface is a turn and push button that allows you to effortlessly navigate through – at the moment – 20 different settings. These settings cover a range of parameters including temperature, extraction weight, extraction time, PID (Proportional-Integral-Derivative) settings, tare weight, and more, giving you precise control over each espresso shot.
On the main screen, essential information is displayed at a glance. You can monitor the temperature of the boiler, track power usage, and view the water level in the reservoir. During the extraction process, the interface dynamically updates to show real-time metrics such as extraction time, weight of the espresso extracted, and the power being delivered to the heating element.
To conserve energy, the diyPresso features a power-saving mode. After one hour of inactivity, the machine automatically enters sleep mode, reducing power consumption without compromising performance. This thoughtful feature ensures energy efficiency and peace of mind when the diyPresso is not in active use, while still being ready to brew your perfect espresso at a moment’s notice. With its advanced yet user-friendly interface, the diyPresso makes crafting exceptional espresso a delightful and personalized experience.
DIY, or “Do It Yourself,” means you’ll assemble the diyPresso from scratch using components like the frame, hardware, and electronics provided in the kit. Our straightforward manual is designed to be user-friendly, offering step-by-step instructions that make assembly a breeze. You won’t need specialized skills or tools—just a basic screwdriver and wrench are sufficient.
The diyPresso kit empowers coffee enthusiasts of all levels to build their own espresso machine. Whether you’re a novice or a seasoned DIYer, our manual ensures a smooth and enjoyable assembly process. Each part is meticulously designed for easy integration, ensuring that assembling your diyPresso is a rewarding experience.
Imagine the satisfaction of sipping a freshly brewed espresso made from a machine you built yourself. With diyPresso, everyone can unleash their inner barista and enjoy the aroma and taste of professionally crafted espresso at home. Elevate your coffee experience with diyPresso — it’s more than a machine, it’s a journey into the world of DIY espresso crafting. The new coffee experience.
Assembly time: around 5 hours
Number of parts: 346
