Kernel Bob<p><span class="h-card" translate="no"><a href="https://techhub.social/@3dprinting" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>3dprinting</span></a></span> The passive air return is in. The fan on the right will pull air from the upper to the lower compartment, and the return on the left will -- uh, let it return. I decided to make the return look like another Noctua fan.</p><p>🧵 39/N</p><p><a href="https://chaos.social/tags/FilaBillyHumidor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FilaBillyHumidor</span></a></p>
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#filabillyhumidor
4 posts · 2 participants · 0 posts today
Kernel Bob<p><span class="h-card" translate="no"><a href="https://techhub.social/@3dprinting" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>3dprinting</span></a></span> </p><p>Kid: Can we have Noctua NF-A12x25? Please?</p><p>Mom: We have Noctua NF-A12x25 at home.</p><p>Noctua NF-A12x25 at home:</p><p>🧵 38/N</p><p>(Not my model, but I modified it for printability and removed the blades.)</p><p><a href="https://chaos.social/tags/FilaBillyHumidor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FilaBillyHumidor</span></a></p>
Kernel Bob<p><span class="h-card" translate="no"><a href="https://techhub.social/@3dprinting" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>3dprinting</span></a></span> This is the FilaBilly Humidor's center shelf. I am putting a 120mm fan in to circulate air between the top and bottom halves. I printed this surround in two pieces. I'm pleased with how it came out.</p><p>Yes, it's crooked in the photos. I straightened it as soon as I saw the photos, but I didn't re-photograph it.</p><p>🧵 37/N</p><p><a href="https://chaos.social/tags/FilaBillyHumidor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FilaBillyHumidor</span></a></p>
Kernel Bob<p><span class="h-card" translate="no"><a href="https://techhub.social/@3dprinting" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>3dprinting</span></a></span> The guy at the hardware store looked at me like I was crazy when I asked for a 170mm hexagonal drill bit. 🤪 Then I remembered which country I live in and asked for a 6½ inch.</p><p>The hole came out cleaner than I had hoped.</p><p>🧵 36/N</p><p><a href="https://chaos.social/tags/FilaBillyHumidor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FilaBillyHumidor</span></a> <a href="https://chaos.social/tags/SpecialtyTools" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SpecialtyTools</span></a></p>
Kernel Bob<p><span class="h-card" translate="no"><a href="https://techhub.social/@3dprinting" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>3dprinting</span></a></span> And I posted TWO new 'blog posts about it. I've been in a writing frenzy!</p><p><a href="https://kbob.github.io/2025/04/28/planning-the-filabilly-humidor" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">kbob.github.io/2025/04/28/plan</span><span class="invisible">ning-the-filabilly-humidor</span></a></p><p>🧵 35/N</p><p><a href="https://chaos.social/tags/FilaBillyHumidor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FilaBillyHumidor</span></a> <a href="https://chaos.social/tags/blog" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>blog</span></a></p>
Kernel Bob<p><span class="h-card" translate="no"><a href="https://techhub.social/@3dprinting" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>3dprinting</span></a></span> I have published the dehumidifier to Printables. Go get it while it's hot!</p><p><a href="https://www.printables.com/model/1279373-filabilly-dehumidifier" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">printables.com/model/1279373-f</span><span class="invisible">ilabilly-dehumidifier</span></a></p><p><span class="h-card" translate="no"><a href="https://mastodon.social/@Saguer" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>Saguer</span></a></span> this is what you've been waiting for...</p><p>🧵 34/N</p><p><a href="https://chaos.social/tags/FilaBillyHumidor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FilaBillyHumidor</span></a> <a href="https://chaos.social/tags/3DPrinting" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>3DPrinting</span></a></p>
Kernel Bob<p><span class="h-card" translate="no"><a href="https://techhub.social/@3dprinting" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>3dprinting</span></a></span> I've pushed the dehumidifier's ESPHome config to Github.</p><p><a href="https://github.com/kbob/filabilly-humidor/blob/main/Dehumidifier/ESPHome/filabilly-dehumidifier.yaml" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">github.com/kbob/filabilly-humi</span><span class="invisible">dor/blob/main/Dehumidifier/ESPHome/filabilly-dehumidifier.yaml</span></a></p><p>Next up, I need to finish up the assembly guide. Add photos, redo photo annotations, touch a couple of sentences of the text. Then I can do final prep on the CAD files and publish the dehumidifier! I could be done in a day or two.</p><p>Meanwhile, the IKEA BILLY really wants me to assemble it.</p><p>🧵 33/N</p><p><a href="https://chaos.social/tags/FilaBillyHumidor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FilaBillyHumidor</span></a> <a href="https://chaos.social/tags/ESPHome" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ESPHome</span></a></p>
Kernel Bob<p><span class="h-card" translate="no"><a href="https://techhub.social/@3dprinting" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>3dprinting</span></a></span> I'm declaring victory. The overshoot is harmless here, and the oscillation is gone. The cold temperature stays safely below 0℃</p><p>You can see that the temperature fluctuations are at the resolution of the thermometer, ±0.1℃.</p><p>🧵 32/N</p><p><a href="https://chaos.social/tags/FilaBillyHumidor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FilaBillyHumidor</span></a> <a href="https://chaos.social/tags/ESPHome" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ESPHome</span></a> <a href="https://chaos.social/tags/ControlSystem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ControlSystem</span></a></p>
Kernel Bob<p><span class="h-card" translate="no"><a href="https://techhub.social/@3dprinting" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>3dprinting</span></a></span> The FilaBilly Dehumidifier's PID controller looks a little under-damped. I tuned it using ESPHome's built-in Ziegler-Nichols tuning. Now I'm going to try to hand tune it a little bit. (I have never tuned a PID controller before. They are black boxes to me.)</p><p>It is trying to cycle between 15 minutes at -0.5℃ and 5 minutes at +2℃. That lets it defrost.</p><p>🧵 31/N</p><p><a href="https://chaos.social/tags/FilaBillyHumidor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FilaBillyHumidor</span></a> <a href="https://chaos.social/tags/ESPHome" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ESPHome</span></a> <a href="https://chaos.social/tags/ControlSystem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ControlSystem</span></a></p>
Kernel Bob<p><span class="h-card" translate="no"><a href="https://techhub.social/@3dprinting" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>3dprinting</span></a></span> I pushed it to Github. If you're not a speed reader, you can see the slow version here.</p><p><a href="https://github.com/kbob/filabilly-humidor/blob/main/Dehumidifier/Assembly%20Guide/Assembly%20Guide.pdf" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">github.com/kbob/filabilly-humi</span><span class="invisible">dor/blob/main/Dehumidifier/Assembly%20Guide/Assembly%20Guide.pdf</span></a></p><p>(Easter egg on the last page...)</p><p>🧵 30/N</p><p><a href="https://chaos.social/tags/FilaBillyHumidor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FilaBillyHumidor</span></a> <a href="https://chaos.social/tags/Documentation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Documentation</span></a> <a href="https://chaos.social/tags/Pages" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Pages</span></a></p>
Kernel Bob<p><span class="h-card" translate="no"><a href="https://techhub.social/@3dprinting" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>3dprinting</span></a></span> Hey, the assembly guide is formatted. I still need to take another half dozen photos, but I'm liking it so far.</p><p>Edit: replaced static image of the cover with a flipbook movie.</p><p>🧵 29/N</p><p><a href="https://chaos.social/tags/FilaBillyHumidor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FilaBillyHumidor</span></a> <a href="https://chaos.social/tags/Documentation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Documentation</span></a> <a href="https://chaos.social/tags/Pages" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Pages</span></a></p>
Kernel Bob<p><span class="h-card" translate="no"><a href="https://techhub.social/@3dprinting" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>3dprinting</span></a></span> I've written the first draft of the assembly guide for the FilaBilly Dehumidifier. It's a Markdown document. I've got a couple dozen photos that I want to insert into the instructions, and I kind of want to make it look better than Markdown. So I'm thinking about word processors. It's been years since I used one. Maybe Apple Pages?</p><p>Meanwhile, the rest of the IKEA parts are coming this week. So progress is progressing.</p><p>🧵 28/N</p><p><a href="https://chaos.social/tags/FilaBillyHumidor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FilaBillyHumidor</span></a> <a href="https://chaos.social/tags/Documentation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Documentation</span></a> <a href="https://chaos.social/tags/MarkDown" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MarkDown</span></a></p>
Kernel Bob<p><span class="h-card" translate="no"><a href="https://techhub.social/@3dprinting" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>3dprinting</span></a></span> Remember when you had to go to the grocery store and ask to pull cartons from their dumpster when you wanted some cardboard? All but one of these was delivered to our very own house this week.</p><p>It's a balmy 52℉ (11℃) and windy here today, so I'm sealing the BILLY in polyurethane. The short pieces look okay for a first coat, but the uprights are too long to cover with a single brush stroke, and they don't look good.</p><p>🧵 27/N</p><p><a href="https://chaos.social/tags/FilaBillyHumidor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FilaBillyHumidor</span></a> <a href="https://chaos.social/tags/Painting" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Painting</span></a></p>
Kernel Bob<p><span class="h-card" translate="no"><a href="https://techhub.social/@3dprinting" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>3dprinting</span></a></span> I just posted this PCB to r/PrintedCircuitBoard. I'll see what kind of suggestions I get.</p><p><a href="https://www.reddit.com/r/PrintedCircuitBoard/comments/1k092kk/review_requestdehumidifier_controller/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">reddit.com/r/PrintedCircuitBoa</span><span class="invisible">rd/comments/1k092kk/review_requestdehumidifier_controller/</span></a></p><p>🧵 26/N</p><p><a href="https://chaos.social/tags/FilaBillyHumidor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FilaBillyHumidor</span></a> <a href="https://chaos.social/tags/PCB" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PCB</span></a></p>
Kernel Bob<p><span class="h-card" translate="no"><a href="https://techhub.social/@3dprinting" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>3dprinting</span></a></span> It's a puddle!</p><p>That's about 15 minutes of dehumidification in open air. The humidity here is 30%.</p><p>I got the wiring done, and I reassembled the dehumidifier with what I hope are the final pieces. I took a lot of photos so I can write an assembly guide.</p><p>I've still got work to do on the ESPHome firmware.</p><p>🧵 25/N</p><p><a href="https://chaos.social/tags/FilaBillyHumidor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FilaBillyHumidor</span></a> <a href="https://chaos.social/tags/ESPHome" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ESPHome</span></a></p>
Kernel Bob<p><span class="h-card" translate="no"><a href="https://techhub.social/@3dprinting" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>3dprinting</span></a></span> The mechanical fit is good.</p><p>It fits Ben Krejci's enclosure too. He didn't make a PCB; he built his controller on perf board.</p><p>And yeah, this is the dehumidifier's color scheme. Natural PETG and PLA with matte orange accents. Think of it as Orange Julius-inspired.</p><p>🧵 24/N</p><p><a href="https://chaos.social/tags/FilaBillyHumidor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FilaBillyHumidor</span></a> <a href="https://chaos.social/tags/3DPrinting" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>3DPrinting</span></a></p>
Kernel Bob<p><span class="h-card" translate="no"><a href="https://techhub.social/@3dprinting" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>3dprinting</span></a></span> This morning I soldered the FilaBilly dehumidifier PCB. I need to crimp up some connectors, reprint the orange standoff/surround (it's like 0.3mm too tight), and finish the firmware. Then it'll be system testing time! I already know the ESP32 boots, either from USB or 12V power.</p><p>I found out about r/PrintedCircuitBoard yesterday, so I'll ask for a PCB review there, even though the board is assembled.</p><p>🧵 23/N</p><p><a href="https://chaos.social/tags/FilaBillyHumidor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FilaBillyHumidor</span></a> <a href="https://chaos.social/tags/OSHPark" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OSHPark</span></a> <a href="https://chaos.social/tags/KiCad" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>KiCad</span></a> <a href="https://chaos.social/tags/ESPHome" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ESPHome</span></a></p>
Kernel Bob<p><span class="h-card" translate="no"><a href="https://techhub.social/@3dprinting" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>3dprinting</span></a></span> I am planning to paint the BILLY with polyurethane to make it less permeable. Yesterday and today were rain-free, so I built some sawhorses for outside painting. But it was too cold to paint. Next week it's forecast to be fair and above 50℉ (10℃) for a couple of days, so I'll try to do the polyurethane then.</p><p>Meanwhile, the PCB for the dehumidifier has arrived...</p><p>🧵 22/N</p><p><a href="https://chaos.social/tags/FilaBillyHumidor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FilaBillyHumidor</span></a></p>
Kernel Bob<p><span class="h-card" translate="no"><a href="https://techhub.social/@3dprinting" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>3dprinting</span></a></span> <span class="h-card" translate="no"><a href="https://fosstodon.org/@layers" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>layers</span></a></span> The barrel jack and the USB port fit. The seal around the cold side temperature probe is too loose, and one of the screw holes for the temp/humidity sensor is off by half a millimeter.</p><p>I didn't really choose a place for the WiFi antenna. I guess I'll just close the case over it and let it find its own location.</p><p>I'm still waiting on the real PCBs.</p><p>🧵 21/N</p><p><a href="https://chaos.social/tags/FilaBillyHumidor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FilaBillyHumidor</span></a> <a href="https://chaos.social/tags/3DPrinting" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>3DPrinting</span></a> <a href="https://chaos.social/tags/Prototyping" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Prototyping</span></a></p>
Kernel Bob<p><span class="h-card" translate="no"><a href="https://techhub.social/@3dprinting" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>3dprinting</span></a></span> I've modeled the front-mounted electronics. Channels for the wires, a seal for the cold side temperature probe, standoffs for the PCBs, and a cover. Now I wait for the printers and find out what doesn't fit.</p><p>This is the first time I've used <span class="h-card" translate="no"><a href="https://fosstodon.org/@layers" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>layers</span></a></span> technique for printed threaded holes. I'll see how well they work. <a href="https://toms3d.org/2025/01/14/a-better-way-to-add-threads-to-your-3d-prints/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">toms3d.org/2025/01/14/a-better</span><span class="invisible">-way-to-add-threads-to-your-3d-prints/</span></a></p><p>🧵 20/N</p><p><a href="https://chaos.social/tags/FilaBillyHumidor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FilaBillyHumidor</span></a> <a href="https://chaos.social/tags/Fusion360" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Fusion360</span></a></p>
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