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Search: Posts Made By: wdevauld
Forum: DIY Projects 06-02-2014, 06:29 PM
Replies: 8
Views: 555
Posted By wdevauld
LandoLincoln, I have stainless wire (Safety...

LandoLincoln, I have stainless wire (Safety Wire). It's 0.02 diameter, it is what I used to hold the coil when I put it into the oven.

I was hoping to have the coil without any wires, which is...
Forum: DIY Projects 06-02-2014, 04:38 PM
Replies: 8
Views: 555
Posted By wdevauld
Stress Relief for Stainless HERMS coil

I've been working on a stainless steel heat exchanger for my brewing adventures. I managed to wrangle together a DIY 1/2 tubing coiler akin to the one that has been around HBT for some time...
Forum: DIY Projects 03-04-2014, 04:50 AM
Replies: 115
Views: 15,721
Posted By wdevauld
Jeeeeeze Brewman, I turn my back for 1 month, and...

Jeeeeeze Brewman, I turn my back for 1 month, and now you are making a damn STEAM GENERATOR!

Seriously?!?

-W
Forum: Electric Brewing 05-17-2013, 03:52 PM
Replies: 31
Views: 5,755
Posted By wdevauld
What do you do for separating hops and hot break...

What do you do for separating hops and hot break from the wert? I see you have a setup to allow for whirlpooling but is that not opposite if what you want with a center drain?
Forum: Automated Brewing Forum 03-07-2013, 07:30 PM
Replies: 116
Views: 25,172
Posted By wdevauld
According to the datasheet...

According to the datasheet (http://datasheets.maximintegrated.com/en/ds/DS18B20.pdf) you can (or should) wire pin three to +5V so the sensors do not have to run in parasitic power mode. I've...
Forum: Automated Brewing Forum 01-25-2013, 07:53 PM
Replies: 116
Views: 25,172
Posted By wdevauld
Unfortunately the rPi only pushed 3 volts on the...

Unfortunately the rPi only pushed 3 volts on the gpio pins and this relay needs 5V to trigger. You will need a 5v supply, probably the same driving you pi, and then a transistor that is turned on by...
Forum: Automated Brewing Forum 01-16-2013, 07:00 AM
Replies: 116
Views: 25,172
Posted By wdevauld
Depends on the Wattage of your element. I have a...

Depends on the Wattage of your element. I have a 5500 Watt element @ 240 volts. Which is 5500 / 240 = 22.92 amps, over twice what that board can handle. If you had a 2000W element. It. Would be...
Forum: Electric Brewing 01-11-2013, 09:05 PM
Replies: 8
Views: 599
Posted By wdevauld
Protto, I think I get what you are saying. I...

Protto, I think I get what you are saying. I believe the difference is not to have the K_i term set to zero if you are far away (5 degrees in your example), I think you want to zero out the error...
Forum: Electric Brewing 01-11-2013, 03:23 PM
Replies: 8
Views: 599
Posted By wdevauld
Br3ttb, Unfortunately I'm not making use of...

Br3ttb,
Unfortunately I'm not making use of a brewtroller. Your name came up as an expert in the field. I am currently driving all this using a Raspberry Pi, a ruby PID library and GPIO pins....
Forum: Electric Brewing 01-11-2013, 04:44 AM
Replies: 8
Views: 599
Posted By wdevauld
Alien, thanks for the contact, I'll see if Brett...

Alien, thanks for the contact, I'll see if Brett can tell me why this is a bad idea.

Protto, I'm running a HERMS. Basically a HEX in my HLT, all electric at about 5500 Watts. I circulate...
Forum: Electric Brewing 01-10-2013, 06:16 PM
Replies: 8
Views: 599
Posted By wdevauld
Question Truncating Integral Windup?

So, when playing around with setpoints, I find that my error integral gets wound up to a large value in that it dominates everything else. While working out the problem, I have been running on PD...
Forum: Equipment/Sanitation 01-04-2013, 05:22 AM
Replies: 0
Views: 275
Posted By wdevauld
Screen with Plate Chiller versus Immersion and Whirlpooling

I have a dilemma and would like to go fishing for opinions.

I am planning on putting together a keggle single-tier system this spring. I am lucky enough to have a SWMBO that gifted me two chugger...
Forum: General Beer Discussion 01-03-2013, 01:17 AM
Replies: 8
Views: 850
Posted By wdevauld
I'm cross referencing data found on the web and I...

I'm cross referencing data found on the web and I can't make this work out.

I started with http://beerlegends.com/chemistry-of-hops-and-alpha-acids

I looked at Apollo to see if I could make the...
Forum: Automated Brewing Forum 12-31-2012, 07:36 PM
Replies: 116
Views: 25,172
Posted By wdevauld
Found something that may help get rid of the old...

Found something that may help get rid of the old sightglasses: Ultrasonic sensor on ebay (http://goo.gl/1hrE7)

Seems like it would be pretty easy to read levels in all three vessels for pretty...
Forum: Beginners Beer Brewing Forum 12-26-2012, 05:13 PM
Replies: 3
Views: 280
Posted By wdevauld
I often have the same problem with a swarm of...

I often have the same problem with a swarm of bubbles. Inside my measurement cylinder I drop in the hydrometer then use a straw to suck away the bubbles.
Forum: Equipment/Sanitation 12-25-2012, 10:59 PM
Replies: 11
Views: 779
Posted By wdevauld
I third this method.

I third this method.
Forum: Cider Forum 12-25-2012, 07:01 PM
Replies: 10
Views: 1,358
Posted By wdevauld
What you are looking for is called a scratter. A...

What you are looking for is called a scratter. A search on google will probably have a thousand DIY projects you could mimic.

I made one out of plywood, 2x4s (turned on lathe to make a round...
Forum: General Chit Chat 12-25-2012, 05:50 PM
Replies: 235
Views: 8,802
Posted By wdevauld
I got a bunch of straight Swagelock fittings. ...

I got a bunch of straight Swagelock fittings.

Santa must be psychic...
Forum: Beginners Beer Brewing Forum 12-25-2012, 05:53 AM
Replies: 24
Views: 982
Posted By wdevauld
The level of your boil was not likely the...

The level of your boil was not likely the problem. I have seen several different brewers do their thing, and even amongst the best the idea of a rolling boil varies quite a bit. As long as the water...
Forum: DIY Projects 12-10-2012, 01:51 AM
Replies: 107
Views: 33,377
Posted By wdevauld
It may too much to ask, but can you add the...

It may too much to ask, but can you add the manifold and plumbing you are planning on using? I may be convinced to hard plumb my stand, although I'd like to see an example of some good hard plumbing.
Forum: General Chit Chat 12-09-2012, 08:24 PM
Replies: 29
Views: 1,048
Posted By wdevauld
How come there is no 'yes' option? :D

How come there is no 'yes' option? :D
Forum: General Beer Discussion 12-09-2012, 08:23 PM
Replies: 45
Views: 2,908
Posted By wdevauld
I second the gift card idea. Giving a sum of...

I second the gift card idea. Giving a sum of money that is 'already spent on brewing' is a great option. You could go with a certificate to your local homebrew shop, no doubt he has a favorite he...
Forum: Automated Brewing Forum 12-07-2012, 09:57 PM
Replies: 116
Views: 25,172
Posted By wdevauld
redm18, the answer to your questions depend on...

redm18, the answer to your questions depend on the type of probe you get. If you get a Thermocouple or Thermistor then you can just use the onboard GPIO pins. The upside is that they are cheap and...
Forum: Automated Brewing Forum 12-07-2012, 01:57 PM
Replies: 116
Views: 25,172
Posted By wdevauld
helibrewer, don't get tangled up in AsyncIO/epoll...

helibrewer, don't get tangled up in AsyncIO/epoll just yet. It is very much a nice to have. Given that the rPi is probably going to be dedicated to the brewing/displaying there is little value in...
Forum: Automated Brewing Forum 12-06-2012, 10:18 PM
Replies: 116
Views: 25,172
Posted By wdevauld
What dT/dt are you looking for? It would take me...

What dT/dt are you looking for? It would take me all of 5 minutes to put one in a pot of water and bring to decent temp and then drop another in to see how fast it rises to temperature. Obviously...
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