180 gallon build: Modular control system, 3D printed equipment, open-source

180 gallon build: Modular control system, 3D printed equipment, open-source

I'm loving all the cool stuff your designing and printing. Thanks for posting all the files as well! I may borrow some of your ideas down the road


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I love everything about this thread, main push for me to get my 3d printer, went with the maker select v2, love it. Just finishing making all the novelty things and getting that out of my system. Broke my paper towel holder yesterday, went to the basement and started printing one. I wanted to buy a tub drain on amazon but couldn't jstify the 12$, found one and printed it.

I'm getting to the point when I'm looking at things on/in my tank and saying "I should make a spare one of these for when this breaks"

About to start learning how to design stuff, honestly man, great work on everything. Good to see that a item like this can make such great products.

Sorry for the delayed response. Most excellent that another printer is joining the fray!

Greetings from Denmark.
I love your diy skills!
Can I get you to tell more about your surge tank and how it works, maybe with a vedeo? pretty please!

Thanks. There is a video several pages back that shows it a bit. But I am do to update it. I just have not gotten around to it.

I'm loving all the cool stuff your designing and printing. Thanks for posting all the files as well! I may borrow some of your ideas down the road

Thanks. Please do.

Is that motorized pvc valve available somewhere?

All the source files are linked in the thread. Just a matter of printing it out and assembling it.
 
I have the dosing module working and installed (mostly anyway). As soon as I do some clean up in the Sketch I will post it. Hardware wise I still need to add the battery for the RTC and pick up another NEMA-17 motor for the other pump.

The Sketch supports dosing three times a day; timing is independent between pumps and volume is independent per dose event. The way it is written it would not be terribly difficult to increase the number of possible events. For me though I think three is good enough for the time being.

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Hi

Amazing build.
What kind of stepper motors are you using for the dosing pumps ?
Pancake nema17 ?
 
Have been slow to check in on things and get updates posted. Most free time lately has been going full tilt to getting a beta version of the controller embedded/web UI done. Unfortunately this is still a ways out.

Following. Just amazing and inspirational. Making my 3D printer choice and getting it on its way as well.

Thanks. Glad I can inspire others to do similar.

You said you had a update for the brine shrimp feeder?

Yep. Its deployed on the tank and I am pretty happy with it. But have not gotten back around to cleaning up the model and getting it posted. Hopefully I will get it up sooner than later.

Hi

Amazing build.
What kind of stepper motors are you using for the dosing pumps ?
Pancake nema17 ?

Thanks. The steppers I have been using are one of a few different 12V ~0.4Amp NEMA 17 motors found on Amazon or Adafruit.
 
Quick update; finally got around to tweaking a few of the brine funnel dimensions and getting it uploaded. A zip with the STL files can be downloaded from here: brine feeder files

Otherwise still driving hard on the controller and web UI. I still have a little bit of work to do with clocks. But hope to have the first revision installed and in testing this weekend. If that goes well I do a video walk through and post it up. So stay tuned.

Once the controller is stable I will get back to the ATO module and hopefully have something interesting to post related to it before too awful long. We shall see though. The temporary ATO has been working well since start up, so my motivation has been weak to get the final version done.
 
Hopefully soon I will be able to be asking more questions :)

dc0fcd0f2eba471d0d7c7cf7eb6fc6bd.jpg


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Finally something exciting to share! I have the main controller up and running, and have been testing this week. A few hardware bugs, a lot of software bugs, and certainly many features yet to be implemented. But it is functional at the moment. Below is a short video tour (don't mind the shaky camera work; recorded on my cell phone).

The controller is the module on the lower DIN rail. When I pan to the computer, I have the controller's USB terminal open via the Arduino IDE on the left (so you have a sense of how it is interacting with the other modules), and the web UI open on the right. Hopefully the video is clear enough to get the gist of what things are and what is going on.

<iframe width="640" height="360" src="https://www.youtube.com/embed/qOJVWg7uzbI" frameborder="0" allowfullscreen></iframe>

I need to make a hardware revision next and hope to have the board at least laid out by the weekend. After that it is on to revising some existing software features that perform less than desirably and adding in a couple things that it became evident I needed once I started playing with it. (and two lingering major features that are needed; an automated method of syncing the controller to the module and some clock work to handle when the yun doesn't have access to an NTP time server)

At some point further down the road I will do a mobile optimized layout. Most of the web UI is already generic enough that it works will on my iphone, but the flow control and graphs need some more work to be mobile device friendly.

I also took a couple of update shots of the display. I had been battling some "new tank" nuisance algae and had been less than excited about showing the tank off as a result. Things are on the up swing now though.

IMG_2689.JPG


IMG_2690.JPG
 
I am printing mods and improvements as fast as I can get good prints :)

Once I get to the point I feel I can actually print stuff for my tank the first thing I would like to print is a better holder for my high water sensors in my display tank.

What do you recommend I use for cad software to design stuff on once I am not just printing others creations?
f7cbb0c120fe303f0091aac4e157d3c9.jpg


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I am printing mods and improvements as fast as I can get good prints :)

Once I get to the point I feel I can actually print stuff for my tank the first thing I would like to print is a better holder for my high water sensors in my display tank.

What do you recommend I use for cad software to design stuff on once I am not just printing others creations?
f7cbb0c120fe303f0091aac4e157d3c9.jpg


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I used tinkercad just to get a basic understanding of cad. Others like to jump right into fusion 360

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What do you recommend I use for cad software to design stuff on once I am not just printing others creations?

I have done all my mechanical design in SketchUp. It is quite easy to work in and there are a number of user scripts to help with stuff that is challenging with the software's native tools. To that end I recommend SolidInspectorII and DrawWhorl as two must have scripts for working in SketchUp. The first for checking manifold and the second for modeling threads.
 
A quick update: I had the main controller running most of last week. I found a few issues with the power supply and I had made some oversights in implementing the reset buttons. So a second revision was needed and that is what I knocked out Friday night/Saturday morning. Thankfully I had everything needed on hand to get a version built and running.

Here are a couple of shots of the board:
IMG_2691.JPG


IMG_2692.JPG
 
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