Search found 36 matches

by AndyPanda
Mon Dec 11, 2017 2:08 pm
Forum: Pursuit of the God Shot
Topic: Cold nose and consistent temps
Replies: 11
Views: 1749

Re: Cold nose and consistent temps

Just thought I'd check back in - still seems very quiet around here :-P I have been using the machine for several months now and haven't made any changes to the mod. I found a spot on the dimmer controlling the group heater (about 3/4 power) where I simply turn on the espresso machine to warm up and...
by AndyPanda
Sat Sep 02, 2017 11:01 pm
Forum: Maintenance and Repair
Topic: New to Me V2 Issues
Replies: 9
Views: 1354

Re: New to Me V2 Issues

I only have experience with the vibe pump model - and on mine the volume setting needs to be done with tamped coffee in the basket as it pours a completely different volume when there isn't any resistance. I can't make any sense of your problem - maybe I mis-read what you said but it seems you are s...
by AndyPanda
Mon Aug 28, 2017 12:28 pm
Forum: Maintenance and Repair
Topic: New to Me V2 Issues
Replies: 9
Views: 1354

Re: New to Me V2 Issues

If you are mechanically inclined, it is really pretty easy to open the machine, remove a fitting on top of the steam boiler (when it's cool of course) and then you can manually drain all the water from the boiler. Just purging the boiler under steam pressure doesn't get all the water and descaler ou...
by AndyPanda
Fri Jul 21, 2017 5:15 pm
Forum: Tips & Tricks
Topic: Plastic wrap your mini tank
Replies: 2
Views: 594

Re: Plastic wrap your mini tank

Interesting idea. I might have to try that.

Does it make such an airtight seal that it forms a vacuum when the pump starts pumping the water out of the tank? i.e. does the plastic wrap start being sucked down into the tank?
by AndyPanda
Mon Jul 10, 2017 4:38 pm
Forum: Pursuit of the God Shot
Topic: Cold nose and consistent temps
Replies: 11
Views: 1749

Re: Cold nose and consistent temps

Just wanted to reiterate one of the things I wanted to try and accomplish with this mod. Of course I wanted to reduce the need for flushes - having the mini and refilling the tank being an issue for me. But much more than that, what I most wanted to achieve was to be able to have the shot temp start...
by AndyPanda
Sat Jul 08, 2017 6:38 pm
Forum: Pursuit of the God Shot
Topic: Cold nose and consistent temps
Replies: 11
Views: 1749

Re: Cold nose and consistent temps

Thought I'd update now that I've had a day to live with this and try a few things. What I did at first was to simply turn the power on and wait about 60-80 seconds (that was enough time to warm the group from 82C up to 91C) and then turn the power off and pull as many shots as I wanted (the group wo...
by AndyPanda
Sat Jul 08, 2017 6:05 am
Forum: Maintenance and Repair
Topic: What type is the coffee boiler temp sensor?
Replies: 12
Views: 1514

Re: What type is the coffee boiler temp sensor?

Chris Coffee insists that the sensor from the Dream will not work on the Vivaldi - they claim that one is a TC and the other is an RTD ... I think they are wrong (but you would think CC would know). Anyway ... my coffee boiler doesn't have the tap at the top like the one in the picture Chas posted e...
by AndyPanda
Fri Jul 07, 2017 12:06 pm
Forum: Pursuit of the God Shot
Topic: Cold nose and consistent temps
Replies: 11
Views: 1749

Re: Cold nose and consistent temps

lol .... but seriously the portafilter (and the handle) only gets to the exact same temp that it would get to if you wasted half a tank of water pulling warming flushes or if you were making several espressos for dinner guests. EDIT: Oh .. I finally realized that you probably meant "insulated electr...
by AndyPanda
Fri Jul 07, 2017 11:35 am
Forum: Pursuit of the God Shot
Topic: Cold nose and consistent temps
Replies: 11
Views: 1749

Re: Cold nose and consistent temps

This is just the rough prototype, hand made from stuff I had lying about. I'll make a nicer one and seal it with hi temp silicone and route the wiring inside. Right now it is just wired to a power cord and plugged into a power strip so I can easily switch the power on and off as needed. But I'll pro...
by AndyPanda
Fri Jul 07, 2017 4:49 am
Forum: Pursuit of the God Shot
Topic: Cold nose and consistent temps
Replies: 11
Views: 1749

Re: Cold nose and consistent temps

well I built my group head warmer and it works so well I am blown away :bom: I don't have to do any warming flushes at all, and get perfect water temp right at the beginning of the shot all the way to the end of the shot. And whether doing back to back shots or waiting 20 minutes between shots, they...
by AndyPanda
Tue Jul 04, 2017 5:46 pm
Forum: Maintenance and Repair
Topic: Offset Poll #1
Replies: 6
Views: 3955

Re: Offset Poll #1

Just wondering if anyone has noticed whether the temp offset changes on installation of the mechanical preinfusion? Mine arrived uncalibrated and I set the offset to +3 on the back of the poll on this thread (I don't have access to a scace device). But I note that Chris' Coffee is using an offset o...
by AndyPanda
Tue Jul 04, 2017 4:47 pm
Forum: Pursuit of the God Shot
Topic: Cold nose and consistent temps
Replies: 11
Views: 1749

Re: Cold nose and consistent temps

I just made a video to show the group head temp rise when pulling several shots in a row. The temp keeps rising and I've measured that the temp hitting the coffee rises as well. For me, 6 warming flushes is the magic number - but that's a lot of wasted time and water and energy to reheat the boiler ...
by AndyPanda
Tue Jul 04, 2017 11:30 am
Forum: Maintenance and Repair
Topic: What type is the coffee boiler temp sensor?
Replies: 12
Views: 1514

Re: What type is the coffee boiler temp sensor?

I read an old post (dream) where Chas had mounted a temp sensor in both places (on top of the boiler and also in the old position at the back of the boiler) and was going to test to see if there was a difference between using those two different locations. But I never saw a followup post on how the ...
by AndyPanda
Mon Jul 03, 2017 3:24 pm
Forum: Maintenance and Repair
Topic: Mini - valve where tank slides in
Replies: 1
Views: 415

Re: Mini - valve where tank slides in

Well .. since there is no one way valve (at least not on my machine, not that I could find) to prevent water flowing back into the tank --- I tested the pump itself and found that I could suck water backwards through the pump (shouldn't be able to). And I have noticed that when the machine has been ...
by AndyPanda
Sun Jul 02, 2017 4:26 pm
Forum: Maintenance and Repair
Topic: What type is the coffee boiler temp sensor?
Replies: 12
Views: 1514

Re: What type is the coffee boiler temp sensor?

Thanks for all that great info. However my machine does not have that tap on top of the boiler. Mine is a Mini Vivaldi II but it is an early one. My existing sensor looks exactly like the one at Chris Coffee (except black wires instead of white). My sensor works OK ... but I just notice that when I ...
by AndyPanda
Sun Jul 02, 2017 3:17 am
Forum: Maintenance and Repair
Topic: What type is the coffee boiler temp sensor?
Replies: 12
Views: 1514

Re: What type is the coffee boiler temp sensor?

I'm somewhat curious. My brew boiler temp sensor slides into the boiler inside a copper tube just above the heating element. When I read any of the sales brochures for the Vivaldi II they talk about a new sensor that is submerged directly and much faster responding than the old one. (see below from ...
by AndyPanda
Fri Jun 30, 2017 10:14 pm
Forum: Maintenance and Repair
Topic: Mini - valve where tank slides in
Replies: 1
Views: 415

Mini - valve where tank slides in

In searching through the archives here, I've read many posts claiming there is a valve (on the Mini VII) where the tank slides in to prevent the pump from draining backwards and losing its prime. And that you can check if it's working by whether or not you have dribbles under that valve at the back ...
by AndyPanda
Fri Jun 30, 2017 4:01 pm
Forum: Maintenance and Repair
Topic: What type is the coffee boiler temp sensor?
Replies: 12
Views: 1514

Re: What type is the coffee boiler temp sensor?

Thanks! How were you able to find out? I bought my machine used and the previous owner had replaced it but I don't know if they bought from Chris Coffee (thinking they didn't since the connectors were spliced on and if ordered from CC the sensor would have come with the connectors right?) or if they...
by AndyPanda
Fri Jun 30, 2017 2:55 pm
Forum: Maintenance and Repair
Topic: What type is the coffee boiler temp sensor?
Replies: 12
Views: 1514

What type is the coffee boiler temp sensor?

Does anyone know what type of sensor is used for the brew boiler? It's not a K or T type since there is no polarity (you can connect the wires either direction according to Chris Coffee and I tested reversing the wires and it works either way). Chris Coffee couldn't tell me what type it is, they don...
by AndyPanda
Wed Jun 28, 2017 8:40 pm
Forum: Pursuit of the God Shot
Topic: Cold nose and consistent temps
Replies: 11
Views: 1749

Cold nose and consistent temps

I'm fairly new to the world of S1 but not new to espresso. I've been reading all the old posts - a bit surprised at how few new posts there are and wondering if anyone will even see this post I'm making :-? And I wasn't sure whether to post this topic under Modifications or Tips or some other sectio...
by AndyPanda
Tue Jun 27, 2017 5:50 pm
Forum: Pride Page
Topic: Vivaldi Pheonix
Replies: 14
Views: 10579

Re: Vivaldi Pheonix

I just read through this thread and thought I'd add a comment about my experience with CLR. It was many years ago that I tried using CLR on an espresso machine and although it really did clean the gunk out ... I could never, ever get the smell out of the boiler. I could always taste the CLR and no a...
by AndyPanda
Tue Jun 27, 2017 12:57 am
Forum: Maintenance and Repair
Topic: Impending failure?
Replies: 22
Views: 2154

Re: Impending failure?

The vibe pump has two (or three) little spring loaded rubber stoppers - they are supposed to let water go one direction only (towards the boiler) ... so as it vibrates back and forth, it is like a tiny bicycle pump making very short strokes but making 60 of those shorts strokes every second - at lea...
by AndyPanda
Mon Jun 26, 2017 8:41 pm
Forum: Maintenance and Repair
Topic: Impending failure?
Replies: 22
Views: 2154

Re: Impending failure?

The Vario is notorious for changing it's settings by itself. If you are reading 9bars on the gauge and getting the "whoosh" of water when you backflush, I would suspect your grind and dose. Try 14 grams in the double basket. Try one or two micro settings coarser on the grind. HOWEVER ... Since you s...
by AndyPanda
Mon Jun 26, 2017 2:18 pm
Forum: Maintenance and Repair
Topic: Impending failure?
Replies: 22
Views: 2154

Re: Impending failure?

If you can try to answer some questions, we can help you diagnose. Does your brew pressure gauge go up to 9 bars when you hear the sound of the pump change to a low buzz? Do you have a blind basket (a basket used for backflushing - no filter holes) ? Or do you have the rubber disk to block your filt...
by AndyPanda
Wed Jun 14, 2017 3:50 pm
Forum: Mini General Q&A
Topic: Screen bolt
Replies: 9
Views: 1392

Re: Screen bolt

I'm of the school that you should not tap the portafilter after you tamp - I don't want to risk fracturing the compressed coffee puck. I also do not twist the tamper. I cringe when I see others tapping and twisting after they've gone to such great lengths to have fresh coffee, ground perfectly, dist...
by AndyPanda
Sat Jun 10, 2017 3:59 pm
Forum: Mini General Q&A
Topic: Preinfusion chamber warmup?
Replies: 3
Views: 666

Re: Preinfusion chamber warmup?

I did some temp testing with and without the preinfusion chamber and it definitely changes the brew temp and warming flush routine required to get the brew head up to temp. I connected a K-type thermocouple probe into a brass fitting so the probe is inside the water flow just above the dispersion bl...
by AndyPanda
Sat Jun 10, 2017 3:49 pm
Forum: Mini General Q&A
Topic: Screen bolt
Replies: 9
Views: 1392

Re: Screen bolt

After seeing how the hardware store stainless bolt turned colors so quickly, I worry about corrosion. So I switched back to the original bolt but thinned the head a little more:
ScreenBoltThinned.jpg
ScreenBoltThinned.jpg (53.77 KiB) Viewed 913 times
ScreenBoltThinner.jpg
ScreenBoltThinner.jpg (48.4 KiB) Viewed 913 times
by AndyPanda
Sat Jun 10, 2017 2:31 pm
Forum: Mini General Q&A
Topic: Screen bolt
Replies: 9
Views: 1392

Re: Screen bolt

I know there are different grades of Stainless Steel ... I just bought my stainless bolt at the local hardware store. After only two days use, the bolt is black - compared to the original bolt that has been in use for many years. Question for those of you that replaced your screen bolt: Did yours bl...
by AndyPanda
Wed Jun 07, 2017 6:10 pm
Forum: Mini General Q&A
Topic: Preinfusion chamber warmup?
Replies: 3
Views: 666

Re: Preinfusion chamber warmup?

Has anyone tried wrapping the group head with insulation so it can hold the heat after the warming flush? Or you just get used to the flushing routine and go with it? With the Mini, all the flushes lead to frequent refills of the tank unless you are pulling several shots back to back. I generally ha...
by AndyPanda
Wed Jun 07, 2017 5:56 pm
Forum: Mini General Q&A
Topic: Screen bolt
Replies: 9
Views: 1392

Re: Screen bolt

Thanks for the pictures. I just got back from the hardware store with my stainless Phillips head screw and a few minutes with my dremel cutoff wheel with the screw in a drill chuck and voila! I can get 18grams in the double basket now without any screwhead dent. Anyone using the precision triple bas...
by AndyPanda
Sun Jun 04, 2017 11:44 am
Forum: Mini General Q&A
Topic: Screen bolt
Replies: 9
Views: 1392

Screen bolt

So ... I know this is addressed in old threads (I've been digging thru the archives) and perhaps I should be posting in those many years old threads instead of posting a new one. But .... Hey, I'm a fresh newbie S1 owner and excited ... so I'm posting. I thinned the head of the screen bolt. I tried ...
by AndyPanda
Sat Jun 03, 2017 11:43 am
Forum: Mini General Q&A
Topic: Preinfusion chamber warmup?
Replies: 3
Views: 666

Preinfusion chamber warmup?

I'm curious if the preinfusion chamber on the mini pulls the initial shot temp down due to all that extra mass hanging off the group. I was thinking it might be helpful to pull a couple of warming shots with a blind basket, in addition to the regular warming shots, so the preinfusion chamber gets fi...
by AndyPanda
Fri Jun 02, 2017 9:09 pm
Forum: Mini General Q&A
Topic: Questions - my first day with Mini V2
Replies: 5
Views: 977

Re: Questions - my first day with Mini V2

I've been reading thru the archives and learning a lot. I thought I'd post a list of what I've found and learned so far. So ... currently I have the steam offset off (neither + nor -) and if I heat up the steam boiler and leave it heated up for an hour or two, the pressure gauge reads normally. It j...
by AndyPanda
Wed May 31, 2017 11:23 pm
Forum: Mini General Q&A
Topic: Questions - my first day with Mini V2
Replies: 5
Views: 977

Re: Questions - my first day with Mini V2

I found that letting the boiler just stay up to temp for a few hours ... eventually the gauge starts reading up around 1-1.2 bars. And then, even after turning the machine off and purging all the steam pressure thru the wand - the gauge stays up at 1-1.2 bars. So I'm guessing there is some scale tha...
by AndyPanda
Wed May 31, 2017 9:45 pm
Forum: Mini General Q&A
Topic: Questions - my first day with Mini V2
Replies: 5
Views: 977

Re: Questions - my first day with Mini V2

I just noticed that my steam pressure gauge is registering really low (though I seem to have lots of steam). It's only registering in the blue (.5 bar) even though the steam temp offset is adjusted to +3. I also notice my brew pressure is registering 2 bars even though I'm not pulling a shot - so I'...
by AndyPanda
Wed May 31, 2017 8:54 pm
Forum: Mini General Q&A
Topic: Questions - my first day with Mini V2
Replies: 5
Views: 977

Questions - my first day with Mini V2

OK ... I purchased a used Mini V2. The seller claimed it was 2 years old and the brew boiler heater had failed. I ordered the brew boiler heater and got it installed and working today. While I was waiting for the part to arrive, I cleaned the machine up --- the group was filthy with old coffee but n...

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