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Crossland CC1 brew pressure gauge
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Discussions > Espresso > Espresso Mods > Crossland CC1...  
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Stangdriverdoug
Senior Member


Joined: 16 Apr 2014
Posts: 9
Location: Cleveland, Ohio
Expertise: Just starting

Posted Fri Jun 6, 2014, 4:34pm
Subject: Crossland CC1 brew pressure gauge
 

Hello everyone,
I decided I wanted to add a permanent gauge to my CC1 to keep an eye on brew pressure. I know it's not necessary but I like to tinker. I've had this machine for a couple months and really like it. Playing with the PID settings has been cool too.  If anyone is interested in the details I'll be happy to share.

Edit: figured out how to properly post pics:

Stangdriverdoug: rps20140611_092135.jpg
(Click for larger image)
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CMIN
Senior Member


Joined: 14 Jun 2012
Posts: 1,362
Location: South FL
Expertise: I like coffee

Espresso: Crossland CC1
Grinder: Baratza Preciso
Posted Fri Jun 6, 2014, 5:07pm
Subject: Re: Crossland CC1 brew pressure gauge
 

That is awesome, definitely post steps some of us CC1 owners may do the same lol.
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billc
Senior Member


Joined: 15 Jan 2009
Posts: 130
Location: Seattle, Washington
Expertise: Professional

Espresso: CC1 - GS - GS3 - GB5
Grinder: Baratza - Mazzer-Marzocco
Drip: My own Creation
Posted Tue Jun 10, 2014, 7:33am
Subject: Re: Crossland CC1 brew pressure gauge
 

That's pretty cool.   Not sure how you cut the hole but it looks great!  I do have a similar liquid filled pressure gauge and would be happy to supply some kits if others are interested.  Can you show the inside where you made the connections?



BillC
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canuckcoffeeguy
Senior Member
canuckcoffeeguy
Joined: 22 Aug 2013
Posts: 197
Location: Burlington, Ontario, Canada
Expertise: I love coffee

Espresso: Bezzera Magica, Mypressi...
Grinder: K10PB, Vario, Hario Slim
Vac Pot: I have a Dyson vacuum, but,...
Drip: Bialetti Brikka, Bodum...
Posted Tue Jun 10, 2014, 7:55am
Subject: Re: Crossland CC1 brew pressure gauge
 

billc Said:

That's pretty cool.
BillC

Posted June 10, 2014 link

Getting kudos from the person who designed the CC1 is ALSO pretty cool! Congrats Stangdriverdoug!
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Stangdriverdoug
Senior Member


Joined: 16 Apr 2014
Posts: 9
Location: Cleveland, Ohio
Expertise: Just starting

Posted Tue Jun 10, 2014, 11:01pm
Subject: Re: Crossland CC1 brew pressure gauge
 

Thank you for the compliments on my work. So here's how I did it:

Ordered the following parts:

4mm outside diameter with 2.5mm inside diameter tubing (thank you Bill for the specs and answering my emails so quickly). Make sure it can hold up to high temperature and pressure.

A push fit tee fitting. Again make sure it is rated for higher pressure and temperature. A compression fitting would also work well here. I went with a push fit so I could take it on and off.

1.5" glycerine filled pressure gauge. The key here is to make sure it is a back mount (1/8" NPT fitting on the back of the gauge).

A 1/8" female NPT fitting to a 4mm push fitting.

Step 1: I used my dremel with a cutting disc to make the hole. It was pretty rough so I then used a sanding drum attachment to make the hole nice and round.

Step 2:  Removed the hose from the boiler outlet to the 3 way valve. Replaced it with the tee fitting and trimmed the 4mm hose I bought to fit. I had to heat up the hose slightly so I could bend it to make everything fit nice and keep the lines as short as possible.

Step 3: installed the 4mm to female NPT adapter onto the back of the gauge and mounted it to the machine using a small bead of epoxy. With this setup I get no needle flutter. This gauge is rated to be used with gas and oil so the hot water is not a problem.

Step 4: fired up the machine to test.

Here's a pic of the inside:

Stangdriverdoug: rps20140611_091644.jpg
(Click for larger image)
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Stangdriverdoug
Senior Member


Joined: 16 Apr 2014
Posts: 9
Location: Cleveland, Ohio
Expertise: Just starting

Posted Wed Jun 11, 2014, 6:41am
Subject: Re: Crossland CC1 brew pressure gauge
 

Here's a short video of a double shot from this morning.
Crossland cc1 double shot w/ pressure gauge:

http://youtu.be/9Lefz5mmkeo
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