LONDINIUM R arrived

-
This just in. I heard the heavy sliding door of the truck, looked out and indeed there was the delivery, 9 minutes ahead of the noon sharp delivery time estimated by DHL yesterday 4pm.




I will now unpack and install. For anyone curious to know the difference between what was until the end of 2016 called the L1 and this machine in the same outer body but with a different and upgraded internal architecture, the following.

In short, it has variable pre-infusion and it makes espresso with water out of the fresh water tank rather than water that comes indirectly from the boiler.

More specifically, in the words of Reiss Gunson quoted from his forum:
the L1/2/3 all share the same architecture with approximately 7 litres of boiler per group and inclined HX tubes that run transverse across the length of the boiler. they are intended for commercial applications, and in my view a bit over the top for domestic use
the LR seeks to mimic the above design, but in a smaller footprint
so for the LR we took the L1(2012-2016) that you know and love, and removed the trombone pipe that feeds the open thermosiphon from the boiler. we capped off the boiler fitting where we removed the pipe.
then we pushed the water box as far to the right as we could to make room for the rotary pump
then we filled in the left hand side frame partially to create a surface upon which to mount the rotary pump
then we removed the piston pump and put the rotary in its place
then we removed all of the plumbing from the end of the small braided pressure hose where it meets the inlet solenoid on the L1(2012-2016), all the way to the boiler
in its place we connected the pressure hose to a manifold, just as you find on the L1/2/3
the manifold allows the cold water being delivered by the rotary pump to be split into two streams; one fills the boiler and the other fills the heat exchanger that runs longitudinally along the boiler
one of the legs of the manifold has a secondary pressure switch supplied by Ceme which allows you to alter the pre-infusion pressure if your coffee needs demand it. the machine is supplied with this pressure switch set to 3 bar
in all other respects the machine is unchanged

Reacties

Een reactie posten

Populaire posts van deze blog

Finished Pavoni & Fuji PXG4 pid: Probe Inside the Ring

-
Afbeelding
Delicious cup: all the work was well invested! At the end of the previous blog about the pressostat and PID working together , I mentioned that I would like to clean up the xmas tree of wires and have as few cables and probes as possible to visually disturb the classic design of the La Pavoni. Getting rid of the probe that was fastened with copper tape to the top of the brew group was a priority. I wanted to hide a new probe in the cooling fin as close as possible to the brew group. This morning I asked Tije if he could do that. He would need to drill a straight hole of 3mm diameter in the 4mm inner ring of the cooling fin that sits as a tight clamp around the brew group. Always the optimist, Tije set to work: First, Tije made a piece of aluminum to fit the inside of the ring. Drilling a thin hole straight through the curved aluminum, if possible tangentially going through the inside of the ring to touch the brew head directly, you need the support of the temporary insid...
Meer lezen

KiwiSDR2 [radio]

-
Afbeelding
  Despite selling one and giving away two of the five monster vintage 'boat anchor' receivers that I had, I still enjoy listening to shartwave radio. The modern iCOM R8600 that I also have has a wider range plus some decoding options but it's not easy to figure out what encoding is used on which frequencies. The SDR-Control app from Marcus Roskosch at https://ham-radio-apps.com/ makes this much easier and also allows some remote control of the receiver so you can place it and an antenna at the top floor of your house while listening downstairs. I also got the SDRplay RSP1B box: This offers a great listening experience at a very low price compared to the iCOM hardware. I had one before and bought one again after a (somewhat limited) Mac version of the software became available. This device needs a computer to be connected to the receiver. For some time now a nifty little device has appeared which not only works standalone, it even allows you or anyone else to utilize the ...
Meer lezen

Tiny Cheap Fluid Bed Roaster by Tije and Jan

-
Afbeelding
(also see Daily Coffee News feature ) Tije designed and made the following structure for a tiny and cheap fluid bed roaster, to which Jan van der Weel added the Arduino parts, electronics and programming: Sketch by Tije de Jong Jan sourced a very cheap blower (€ 11) to start with, Tije developed and constructed the mechanics, Jan built together and programmed the TC4 / SSR electronics.  On his blog, Jan will specify exactly how the TC4 part is combined and programmed and I will copy these details into this blog entry, just as Jan will use this video in his blog. We did a few test roasts to make sure it works at all and it does. Towards the end, the first roast tended to get a flat BT line and airflow was slightly decreased. 200g seems max load of green beans. Second roast a little more power was given to the heater. Next we will try the Background Roast driven by the PID software of Artisan. A week later, with updated software that works better to change the...
Meer lezen