@quinnale Hey, thanks for joining Alex and welcome! Let's set up a chat - send us an email at info@fbrc.dev and we can set something up - would be very happy to hear what you're up to and how we can collaborate. We have our regular meetings weekly on Thursdays from 12:00 PM - 1:00 PM EST, but I won't be able to attend tomorrow's unfortunately.
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New member introduction thread! -
Following your documentation – feedback & questionsWe print on PP packing tape often and haven't had issues with leakage from that to date. There is a great solution here though which people have used with success, less fiddly than PP tape https://www.ppprint.de/produktkategorie/printing-kits/
Some PP filament reels come with a PP foil adhesive surface, is that what you used?
Most often, problems with PP are related to:
- getting it to print at all/not warping
- PP parts that are dimensionally accurate but leak internally/externally due to print settings/any number of reasons - but 100% infill and 5 perimeters seems to work most of the time (it can be filament/printer dependent)
The reservoirs you can leak test now somewhat by filling with water and covering the barbed fittings.
The flow frames can be tested with water once you have the cell hardware + gaskets.
Can't wait for the rest of your parts to come in and see how you get on!
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Following your documentation – feedback & questionsAnd did you order a MYSTAT from PCBway or similar/do you have another battery cycler/potentiostat available? IIRC you are at a university lab, right?
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Following your documentation – feedback & questionsSo excited that you're doing this - and those prints look excellent! 100% in PETG is fine for the endplates, probably overkill even. I will make this clearer in the docs.
Are the bottom of the endplates reasonably flat?
You say you've ordered the rest of the components - the pumps/tubing are probably the most important selection and hardest to obtain. Did you have any other issues?
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New member introduction thread!@gus said in New member introduction thread!:
@kirk Thank you! I'm starting to 3D print all the components.
Good luck, please let us know how it goes!
@lahuertadepili said in New member introduction thread!:
Hola , somos agricultores en españa, Mallorca, nos apasionan las tecnologías que ayuden a ser mas rentables las explotaciones agrícolas...
¡Hola y bienvenido! I think we share a similar vision
There is another farm that expressed interest in the project in the Dominican Republic: https://vivavistadelmar.wordpress.com/2024/09/24/let-the-power-flow/
One of our main contributors, Daniel, is also based in Spain and can speak Spanish fluently (unlike myself).
It will be a while before we have designed a system robust enough for practical use in a demanding environment like a working farm, but we absolutely plan to get there eventually! See our roadmap for more details: https://fbrc.dev/posts/roadmap-faq-forum/#roadmap
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New member introduction thread!@gus here is a new jig design. With the latest pumps, we don't need an external motor driver anymore, so the jig could become simpler. Now, the plan is to print an external Arduino case which mounts directly to the jig, reducing print time and the size of the entire jig.
Here are the latest instructions: https://fbrc.codeberg.page/rfb-dev-kit/fabrication.html
This should definitely fit the new pumps.
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New member introduction thread!@gus give me a few hours and I will confirm this for you, I will make some changes to the jig.stl file that will make it better. The holes should already be the right size but I will double check.
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New member introduction thread!@gus the docs are now more up-to-date in terms of components: https://fbrc.codeberg.page/rfb-dev-kit/index_BOM.html (specific changes here: https://codeberg.org/FBRC/RFB-dev-kit/commit/0c7eae7fe7f829a2d11ad663948377c5c3419191#diff-6bf6300053fa6ad4798859a249550165c9a2ab8b)
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New member introduction thread!Welcome @gus and thanks for joining! Please share any feedback no matter how small it might seem. Fresh eyes are really helpful.
The docs are close to being done but not quite there yet! I am going to check over them now, some small things have changed (e.g. gasket thickness is now 0.1 mm).
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New member introduction thread!It is mostly 3D printable and there is one brass/copper plate that needs to be machined in a simple way, definitely no problem for any university machine shop. We also now have identified pumps/tubing that work much better.