SOFTWARE DEVELOPMENT & OVERALL REFINEMENTS
We’re in the process of refining every aspect of The Porta Presso.
Everything thus far is on schedule. Thanks for your ongoing support. Please note that extensive engineering has also since been completed on the mechanical side of the PortaPresso however this information is confidential at this stage due to intellectual property protection.
It’s not too late yet. If you know friends or family who would like to purchase The Porta Presso, direct them to our website www.theportapresso.com where they can purchase the device for a pre-order price and also purchase add-ons such as additional cups and beans.
Over the past few weeks we have been working on developing the software to interact with the hardware. We can now operate the valving and selection process via our test components. We are currently using 3 separate buttons to make the desired coffee selection. The first button is “select/enter” for when you chose your desired coffee. The second button is “next,” this scrolls through options. The third button is a “back” command, say your on the select number of shots stage but you want to change what coffee you selected it allows you to move back and do so. Three buttons give it a minimalist look and can sit flush with the machine housing. Throughout the selection process, prompts will be displayed on a LCD screen along with the current choice. We are aiming for a balance between something like a GoPro where there isn’t enough selection prompting, while still maintaining the minimalist look and not over complicating the selection process. Once prompted with the select coffee screen and with the use of the next button, you can scroll through your various coffee types. This selection is on a loop so if you keep pressing the next button you will eventually come around to the start of the list again - as shown below. When happy with the choice the user presses the select button which will take them to the select shot selection.
Once Coffee and shot selection is made you will be prompted with the option to start the coffee making process while maintaining the ability to go back and change your selections. When start is selected the appropriate settings for the choice will be sent through to the motor. The motor controls how much water and milk is used along with frothing time and valve selection. While this is happening another motor controls the tamp and grinding settings beginning the coffee making process.
The Porta Presso has been designed with an autonomous inter face in mind. Wanting the user to be able to select the desired coffee, start, the machine. and step away without any other input required (e.g. grinding, tamping, frothing). As seen on the mock-up below.
Cup Detail: The cup now has a pattern that matches the ‘backpack’ of the main body when it is screwed on. This makes it more intuitive for the user to properly line the cup when screwing it on. As seen on the mock-up below.
Adjustable Grind Setting: We have added the grind density adjuster to the side of The Porta Presso, it was strongly recommended we had the adjuster by our coffee mechanic. This adjuster allows the user to fine tune the density of the grind creating the optimum coffee. By having this manual it removes the need to add any extra motors or circuitry keeping The Porta Presso as small as possible. As seen on the mock-up below.
WHERE TO NEXT?
This week we have been focusing on refining our test jigs to allow us to generate more accurate test results and test multiple functions at the same time. We consulted with an external espresso mechanic who gave us feedback on the overall system, test jigs and mechanical function. The outcome of this was very positive. The results from the test jig prototype will be included in our next update.
Thanks for your continued support.
the porta presso team