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PostPosted: Mon Jun 24, 2013 9:14 pm 
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So,

I got asked if i could design a cheap PID Pit Controller.
here it is

Image
Beavers PID BBQ Controller by Brett Robinson, on Flickr

Parts
(look them up on ebay)

PID Controller + Thermocouple - 12V -24V DC AC Digital PID Temperature Control Controller 2 Omron Relay Output
Fan/Blower - White Brushless DC Cooling Blower Fan 12V 40X40X20mm 4020S New
Relay - 12V DC Bosch Style 20A/30A Car Auto SPDT Relay Harness
Power Supply - AC 100-240V DC 12V 4.0A Adapter Converter Power Supply

total price should come to about $49.50

you of course would want to put it all in a nice box ect ect so for an extra 10-15 dollars you could get nice mounts, power supply sockets and a nice way to attach the fan to the bbq

with a little bit of electronic knowledge putting this together would be very easy.

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ABA Port Macquarie - 11th/45
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PostPosted: Tue Jun 25, 2013 1:22 pm 
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Location: Belgrave Vic
Very clever. Good Job.
Leave it to Beaver to come up with this great gadget. I'm guessing your 1st job was at Dick Smith's?

Image

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PostPosted: Tue Jun 25, 2013 1:35 pm 
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AussieBBQSmoke wrote:
Very clever. Good Job.
Leave it to Beaver to come up with this great gadget. I'm guessing your 1st job was at Dick Smith's?

Image


haha no, i work in I.T but electronics is only a recent addition to me.
never worked in an electrical store nor picked up a soldering iron untill about a year or 2 ago.

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KCBS Melbourne 2015 - 9th/15 Outright
ABA Port Macquarie - 11th/45
- 3rd Lamb
KCBS Melbourne 2016 - 7th/17 Outright
- 2nd Chicken


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PostPosted: Tue Jun 25, 2013 3:57 pm 
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The new and improved version I want to do on raspberry Pi so that like the stoker you can monitor it remotely.

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KCBS Melbourne 2015 - 9th/15 Outright
ABA Port Macquarie - 11th/45
- 3rd Lamb
KCBS Melbourne 2016 - 7th/17 Outright
- 2nd Chicken


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PostPosted: Thu Jul 10, 2014 3:32 pm 
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Joined: Mon Jun 02, 2014 10:53 am
Posts: 67
I finished building one of these yesterday and gave it a run on a 10 hour pulled pork with a chook thrown on as well.

The fire basket was primed with 1 chimney of heat beads and then the rest of the bag mixed with 1/3 of a bag of lump charcoal, dropped it into the UDS and left it with top vents open and two bottom vents open while I prepared the meat.

I didn't have the controller turned on yet, as the first time it is run it goes through a "Auto Tune", to speed this up bring your cooker as close as possible to the temperature you want it at. These little wonders actually continue to "Learn" after the Auto Tune phase, if there are varyations to the cooker, wind, rain or even opening it up it can get back on track pretty quickly.

Image

Image

A BIG THANKS TO BEAVER FOR THE INFO AND DRAWING

Once you get some confidence in the ability of the unit it's set and almost forget
Image

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"I LOVE THE SMELL OF BBQ...ANY DAMN TIME"
UDS with Beaver Queefer Temperature Control System
2/3 UDS With Weber Lid, sharing the Beaver Queefer
44gal Spit Hooded
44gal Spit Open Top

http://www.littleriverraiders.com.au/
Shooting like its 1889


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PostPosted: Thu Jul 10, 2014 5:15 pm 
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Holy shit! Someone actually built one! :)
Glad it's working well for you

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KCBS Melbourne 2015 - 9th/15 Outright
ABA Port Macquarie - 11th/45
- 3rd Lamb
KCBS Melbourne 2016 - 7th/17 Outright
- 2nd Chicken


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PostPosted: Thu Jul 10, 2014 5:20 pm 
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Joined: Sat Mar 23, 2013 12:42 am
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Location: Melbourne
I've thought about doing it, but I could see it being a nightmare when it comes to soldering it all up. Still, if I win lotto, it'll be high up on my list of things to do, whilst laughing at those without a squillion dollars in the bank.
:D


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PostPosted: Thu Jul 10, 2014 7:23 pm 
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Beaver wrote:
Holy shit! Someone actually built one! :)
Glad it's working well for you

Yes I did and it certainly has worked...... next I'm leaning towards the Arduino/Rasberry Pie set up.... :ugeek:
This stuff is opening up my horizons...... Talking at work one of the guys asked if it would work on a furnace hot enough to temper steel and make springs.... cant see why not.....only looking ay 680 deg, then someone said it would certainly stabalize the column temperature on their still :shock: :lol: :P the possibilities are AMAZING

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"I LOVE THE SMELL OF BBQ...ANY DAMN TIME"
UDS with Beaver Queefer Temperature Control System
2/3 UDS With Weber Lid, sharing the Beaver Queefer
44gal Spit Hooded
44gal Spit Open Top

http://www.littleriverraiders.com.au/
Shooting like its 1889


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PostPosted: Thu Jul 10, 2014 7:30 pm 
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absolutely it would.
although furnaces these days are gas driven arent they?
i can design a pulse based actuator that opens and closes gas valve to adjust temperature

Image

also, once you start talking commercial use you run into law issues


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KCBS Melbourne 2015 - 9th/15 Outright
ABA Port Macquarie - 11th/45
- 3rd Lamb
KCBS Melbourne 2016 - 7th/17 Outright
- 2nd Chicken


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PostPosted: Thu Jul 10, 2014 7:36 pm 
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Location: Oakland County, Michigan
Relay - 12V DC Bosch Style 20A/30A Car Auto SPDT Relay Harness
Do you think this is required? The PID has relay contacts, and that fan can't draw that much current. Guess I'm not sure tho- I din't look up the PID to see it's ratings.

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