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Espresso: Espresso Mods and Restorations
New Silvia Project - what would you add?
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Step by step guide for easy brewing and steaming with the Rancilio Silvia
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philipmc
Senior Member


Joined: 5 Oct 2011
Posts: 32
Location: Singapore
Expertise: I love coffee

Espresso: Silvia
Grinder: Rocky
Posted Wed Mar 14, 2012, 1:05am
Subject: Re: New Silvia Project - what would you add?
 

Hi Patrick.

The Silvia has no electronics inside, it's purely 110/240v. I could put a small transformer inside, but using a USB cable means I can update the software without having to remove anything. It can also be used for two way communication with a PC/laptop for debugging or data logging.

For the steam, the way I plan to wire it means you can use either the switch (which goes through the normal thermostat) or the remote (which invokes PID control). In fact, for the test set up, all of the Silvia buttons work exactly the same way. The only thing bypassed is the brew thermostat.
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patrickff
Senior Member


Joined: 15 Aug 2011
Posts: 36
Location: DC
Expertise: Just starting

Espresso: Silvia v2
Grinder: Baratza Vario
Drip: Aeropress
Posted Thu Mar 22, 2012, 2:56pm
Subject: Re: New Silvia Project - what would you add?
 

Some comment I came across regarding "thermocouples":

(...)an RTD sensor is NOT a thermocouple. (...)
RTD's are more sensitive but generally handle small temperature ranges, but they are more precise. These sensors change their resistance based on temperature.
A thermocouple on the other hand are very insensitive and can handle wide ranges of temperatures, but are imprecise.

Found on Flickr (user: ooohay1313).
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JGG
Senior Member
JGG
Joined: 31 Mar 2006
Posts: 1,377
Location: Kentucky, US
Expertise: I like coffee

Espresso: PID Silvia; PID Alexia
Grinder: Mazzer SJ
Roaster: Hottop D w/HTC+TC4C
Posted Thu Mar 22, 2012, 4:39pm
Subject: Re: New Silvia Project - what would you add?
 

"Imprecise" is relative. Well-made thermocouples are plenty precise for an espresso boiler.

Jim
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philipmc
Senior Member


Joined: 5 Oct 2011
Posts: 32
Location: Singapore
Expertise: I love coffee

Espresso: Silvia
Grinder: Rocky
Posted Sun Mar 25, 2012, 8:48pm
Subject: Re: New Silvia Project - what would you add?
 

Sorry it's taking so long to install, every time I think I am ready, I realise I need to order another small part or two! Keen to get it really neat and nice first time.

Testing performed on the termocouple setup shows that I'm getting within 0.2C of the expected temperature for an insulated ice bath. So given this, I'm not even going to bother to try and calibrate more accurately. ;)
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tinyenormous
Senior Member


Joined: 22 Mar 2013
Posts: 30
Location: boston
Expertise: I love coffee

Espresso: gaggia coffee
Grinder: bodium bistro burr / Hario...
Drip: v60 / aeropress
Posted Wed Mar 27, 2013, 7:44pm
Subject: Re: New Silvia Project - what would you add?
 

well, it's been a year since your last post. Any update? Have you been in coffee nirvana for the last 12 months?!

I'm looking forward to some pics of where you mounted it.
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