Taking the Delonghi Magnifica Apart

The story starts off with me noticing that recently while pulling shots of espresso, the espresso machine has been getting slower at extracting the shots. I adjusted the grinder about 30% and that seem to have fixed the problem. Because the grinder is a conical burr grinder it shouldn’t get clogged. However, I wanted to take it apart to clean it and see how it all was put together. I didn’t get a chance to take the grinder apart because it had more parts than I wanted to deal with on a Sunday morning. I did however snaps some good pictures which you can see below.

Inside front of machine with tray and carrier installed

This is the machine after the front door is opened. You can clearly see the carrier and its release tabs (red).

Inside front of machine with tray and carrier removed

I have removed the carrier and the drip tray with the used espresso puck container and set it aside. As you can see, it gets pretty messy in there however it is easy to clean out.

Rear of machine with pump and carrier motor

Besides awfully messy wiring (came like this, i promise), there are two things to note in this picture. The first is in the middle of the machine you’ll notice the 15 bar pump which has a label on it. This pump is the main pump used for pulling shots. Then a bit lower and to the left is a large motor. This motor is what drives the carrier up and down. It is large because it is used to drive the carrier into the tamper in compress the grinds. It appears as though there is some mechanical advantage happening here but I didn’t determine how much.

Inside right side of machine with heater and water filter

Here we have the right side of the machine. On the top tucked underneath you’ll notice the very shiny aluminum block. This is the heater and serves two purposes. The water is heated here and the radiated heat is used to heat the shot glasses which are placed on top of the stainless steel plate. Also, on the bottom of the machine there is a small water filter that connects into the tubing from the water reservoir (not present in this picture). It’s nice to know they added such a simple yet potentially product-saving item. It’s incredible how many products out there cut corners in these areas. Sometimes it’s only one little item that was overlooked or vetoed by the accountant that kept it from receiving “excellent” reviews. I’m happy to state that this Delonghi Magnifica is not one of them and I have been thoroughly satisfied with it. On to more pictures…

Combined brew head and tamper

This is the brew head where the magic happens. When the carrier comes up to this location it presses (tamps) the grinds and brews the coffee all at once (genius). The red o-ring is there because this brewing head actually slides down into the carrier. This provides the seal to hold in the very high pressures used when pulling espresso shots. See the next image for detail on this part of the carrier.

Combined brew head and tamper

This picture is looking down into the top of the carrier. This is where the brewing head resides when pulling (pumping) a shot of espresso. At the bottom is the metal grate which acts as the filter. It keeps the grinds captive while allowing the espresso through.

puck flapper

This picture shows how the puck slapper scrapes the used espresso puck off into the bin. When you empty the pins the pucks are surprisingly very well intact and easy to dispose of. In the summer, we use them in the garden as fertilizer.

Main circuit board

Lastly, we have the circuit board. Upon close inspection they’re using a microchip microcontroller and several mosfets for heater and motor control. With just a cursory glance the circuit board looks quite nice and well designed. My only gripe is the messy wiring seen on the rear of the machine. It’s so easy to throw in a few ties and makes all the difference during servicing and troubleshooting.

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Easy No-kink Hose

We’ve all been worn out by cheap kinky hoses. So you’re leaving for work and notice that your flowers are dying and need to throw some water on them real quick. You go to drag the hose out to where you need it and then run back to the house to turn it on. After cranking on the faucet you run back to the end of the hose to water the flowers. Pull the trigger on your nozzle and….. nothing.

There are many different ways to skin a cat as there are to make a kink resistant hose. Here is a neat one I came across while disassembling the coffee maker for a one-on-one cleaning session. I didn’t get to what I wanted to clean but I sure got some cool pictures.

Spring inside small tubing

Notice a small spring is used within the hose. It starts prior to the arc in the hose and ends shortly after. This provides internal support that keeps the hose from kinking. In this case they’re simply using it because they have a tight radius to bend around. In some cases this method can also be used to prevent hose collapse under high vacuum. Typically you would use a hose designed to withstand the vacuum, however sometimes these problems don’t creep up until the products hit the production line.

If you can appreciate things like this then we may be the right design house for you. On the other hand, If you’re really on top of your game you’ll tell us that we should appreciate a better design instead of a quick fix like this! :) Either way, we’d love to talk. Give us a call or fill out our easy inquiry form.

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