Matho's controller

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ALWAYS earth your kettle when installing elements. Have a half dozen or so kids myself, some grown up (sort of), though none with any great difficulties. My twin has a 4 year old son with autism, he's gorgeous, but it takes a special kind of patience and lots of support. Hats off to you sir, and the missus.

MB
 
We'll I just finished my Grainfather controller, thanks to everyone who contributed towards the final result, thanks to all the detail online, fired up first time. I had the PCBs printed in China and ordered all my components off Aliexpress. It works superbly with water, the pid settings needed some play with but it ramps up and overshoots by .75 degree then settles back and stay within .25 of a degree,very stable.
I 3d printed my case, leaning the CAD software was probably the most difficult task. Here are a few pics.

https://www.flickr.com/photos/nedgokram/22033505095
https://www.flickr.com/photos/nedgokram/21412348763
https://www.flickr.com/photos/nedgokram/21845643338
 
Thanks God, you're the expert you turned water into wine a few years ago too, I read ;).
Yes planning a brew this weekend a coconut stout which is my favorite.

A couple of question while brewing the water.

In the manual mode the pump stops working at 80 degrees. For the Grainfather I run the boiling wort thru the Chiller to sterilise it so can't do that, yet. I am I missing something?



In Auto mode you only get the option to use the pump/chilling at the end of the boil, not while still in boil, once again to sterilise.
I would prefer the pump on off buttons where the %power on boil is(that could be in the configuration)
 
Oggie said:
We'll I just finished my Grainfather controller, thanks to everyone who contributed towards the final result, thanks to all the detail online, fired up first time. I had the PCBs printed in China and ordered all my components off Aliexpress. It works superbly with water, the pid settings needed some play with but it ramps up and overshoots by .75 degree then settles back and stay within .25 of a degree,very stable.
I 3d printed my case, leaning the CAD software was probably the most difficult task. Here are a few pics.

https://www.flickr.com/photos/nedgokram/22033505095
https://www.flickr.com/photos/nedgokram/21412348763
https://www.flickr.com/photos/nedgokram/21845643338
Hi Oggie,
I'm Italian homebrewer and happy owner of the grainfather.
I built my controller for this kettle and optimized the management in terms of pump and priority processes with positive results (+/-0.2°C) and development ardBIR-GF based on 2.8.3RC8 .
I would to share my video, link here below.
https://vimeo.com/138392796
Case is wooden made. I would like to catch the opportunity of making my case in 3d print. Can you help me?

Best Regards
Cheeryphilip

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20150911_175537.jpg
 
Hi there cherryphilip,

I saw your video a few weeks ago and was really impressed. It made me want to build one for my grainfather, excellent job.

Can you please post the PID settings you have done for the PID configuration ?

@oggie, is it possible for you to share the CAD model for your box ? It looks great !
 
Hi nfragol,
I'm very glad that you like the results; the pid parameters have been optimized by open ardBIR team, that worked on grainfather customed version.

Yes,
I'm available to share the configuration file if you agree to share the 3d printer STILL file.


Best Regards
Filippo
 
Oggie said:
Thanks God, you're the expert you turned water into wine a few years ago too, I read ;).
Yes planning a brew this weekend a coconut stout which is my favorite.

A couple of question while brewing the water.

In the manual mode the pump stops working at 80 degrees. For the Grainfather I run the boiling wort thru the Chiller to sterilise it so can't do that, yet. I am I missing something?



In Auto mode you only get the option to use the pump/chilling at the end of the boil, not while still in boil, once again to sterilise.
I would prefer the pump on off buttons where the %power on boil is(that could be in the configuration)
Hi Oggie,
Manual/Automatic mode the pump stop set at 80C,
Infact by my customed version you can sterilise the chiller at the end of the boiling phase,

The new sequence is:

BOILING (no active pump) ---> START COOLING (pump actived by user even if the wort is at 99C) ---> The beer is ready :).


The pump management has been optimized for grainfather activity.

Best Regards
Filippo
 
What is the difference between open Ardbir grainfather version and regular version ?

Where can we get the Grainfather version?

I don't have the 3d printer file, If Oggie is so kind as to let us use it, that would be great!
 
hi Guys
Thanks for your feedback, I created it in Sketchup. I can also share the stl files but with so many different pc boards better to have the cad files, so you can modify them yourself.
if we got some standard on the board for those without 3d printers, they could just use a print service, Maybe Ardbirs new Nano board.
Probably 15 hrs printing on my printer, 8 components, $5 plastic.
I also have a 9v battery, that keeps all the settings, if I unplug it while using or want to program in.
I also changed the code, so the left button is down and changed the case to lower and upper case.
I will post some better and more detailed pictures over the weekend, and cad cross sections.
I believe this has been an amazing community project and only too happy to share my penny's worth.
how do I share the files, if you give me your email, I can send them to you, they are not big 3-4mb.
I had seen your video CheeryPhilip I was envious as I was still in the early stages, it encouraged me.
My completed unit cost less than $50us including SSrs and power supply, but I bought in bulk off Aliexpess. Probably spent hundreds on components,I could open a factory, but I have some mates that will get them for Xmas now.
 
My pid setting at the moment are:
Kp 100
Ki 50
Kd 50
Sample time 1500
WindowsSet 3000
Overshoots by .75 then settles back to .25 under then real stable in 3 mins.
I would like CheeryPhilips settings as he seems to have mastered it for the GF, which would be better I am sure.
real_beer -I thought pump on boil would have the pump on in auto cycle. I want it to pump on boil in manual mode, I will play tonight, must go to work now. cheers
 
Local 3d Printing service.

Go to 3Dhubs.com find a 3D printer service nearby you. Upload the STL file and ask for a quote. Most of the hubs are private persons doing cheap 3D printer service for other private persons.
This ArdBir Panel, designed by Gutosan. I had it uploaded to a local 3D Hub. within a couple of days I could pick the panel only 3 mile s from my home. For a fair price.

All you need is the STL file. Don't forget to tip the designer.

About the PID settings for the Grainfather.
Gutosan advice me to use the following settings for the PID. P=100; I=20; D=5. When the set point reaches within 1.5 degrees the heating is swithed on and off.
Within 2.5 - 3 minites the temperature is on the set point without any overshoot. The temperature is stable within 0.25°C I think this is pretty good.
 
My PID setting for the GrainFather are different respect to you.
When the set point is reached, i had a max value within 0.25 degrees (see my video), now it has been further optimized within 0.1C without any overshoot, this is pretty good.
See picture here below

I Already created the ArdBir Panel, designed by Gutosan, but i would like to make the case for grainfather only.
My email for further informations or for sharing is: [email protected]

Best regards,
cherryphilip

20150913_144052.jpg
 
Here are snapshots of my design/build, I will upload the stls and cad files to Thingiverse over the weekend. I will also publish the components I used so you can buy the same components if you can't alter the cad files. I designed the case around the components.
https://www.flickr.com/photos/nedgokram/22040017612
https://www.flickr.com/photos/nedgokram/21864241360

I will send you the Sketchup files and you can alter them if you want, it might take a couple of days for me to sort out the stls and upload.

If we can come up with a standard, any one can get it printed,with no CAD experience required.

Cheers....Mark
 
[SIZE=10.5pt]Preparation to maker faire on going ( -7) [/SIZE]
[SIZE=10.5pt]Long journey for this project: from initial original Matho's controller to current ArdBir version presented in the biggest innovation event in EU ![/SIZE]
[SIZE=10.5pt] [/SIZE]
[SIZE=10.5pt]Have a look to MakerFaire home page..[/SIZE]
[SIZE=10.5pt][/SIZE]

[SIZE=10.5pt]http://www.makerfairerome.eu/en/lets-make-a-beer/[/SIZE]

stay tuned for lot of news !

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