This is the back of my 10" Mini server rack -- Custom made 3D printed power modules for each server

Comments

• Legion739@piefed.zip ⁨2⁩ ⁨weeks⁩ ago

  Preemptively responding to this, because I just know there’s going to be a comment about this.

  Yes Yes I know, GitHub, screw GitHub, Screw Microslop. I am trying to move away from Big Tech as much as possible, but it’s a marathon not a sprint, and every win should be celebrated.

  Perfection is the enemy of good.

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  • gratux@lemmy.blahaj.zone ⁨2⁩ ⁨weeks⁩ ago

    FYI, Codeberg/Forgejo can automatically migrate repositories including metadata: docs.codeberg.org/advanced/migrating-repos/#migra…

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    • Legion739@piefed.zip ⁨2⁩ ⁨weeks⁩ ago

      Thanks yea I’ve used Codeberg before, but the main reason I use GitHub, is I try to create a good looking profile to point potential new Clients to when I’m looking for a new job, explaining Codeberg to them I feel is a step too much, and my income is Priority Nr1.

      I’ll fight the Open-Source, anti-Big-Tech fight elsewhere.

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  • irmadlad@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

    Way to head them off at the pass. Rock on with yo bad self.

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  • Alfredolin@sopuli.xyz ⁨2⁩ ⁨weeks⁩ ago

    YOU MEAN inv.nadeko.net/watch?v=O-qcXpapsoY FUCKING NAZI!?

    xD

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• Nomad@infosec.pub ⁨2⁩ ⁨weeks⁩ ago

  Cool build. Please be aware there is a reason that Sockets are made from a plastic that does not melt nor burn. Everything near power connections is a potential fire hazard.

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  • Legion739@piefed.zip ⁨2⁩ ⁨weeks⁩ ago

    Thanks yea I made sure to add this Safety section to my write-up on how to build this yourself, and I reference back to it a lot, so it’s painfully clear.

    I printed this in PETG, but ideally you use UL 94 V-0. I did make sure everything is very well insulated, and pulled hard on every connection to make sure it’s held down properly.

    Safety

    This part carries live mains. Mains wiring kills people who get it wrong, and a fault in a printed enclosure can start a fire.

    Do not build it unless you are competent to wire mains and permitted to do so where you live. Sleeve or shroud all live terminals. PLA softens around 60 °C, PETG around 80 °C. Neither is flame retardant. Only a UL 94 V-0 filament is.

    Wire the protective earth if anything you plug in needs it.

    Build it at your own risk. I take no responsibility for injury, death, fire, or damage resulting from anything in this repository.

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    • snrkl@lemmus.org ⁨2⁩ ⁨weeks⁩ ago

      I don’t want to be the “Deputy Downer” here, but I can’t stress the important of the v0 (we say v-naught) plastics in keeping you safe when it comes to electrical installations - for those that aren’t aware, they are plastics that have to self extinguish once the fault trips the electrical protrctuin, should a fault occur that sets them on fire. (ie: once the electricity isn’t making it flame anymore, it has to out itself out)

      Here is an example of how even low voltage DC can fault, and had the LED strip diffuser plastic not been v0 rated, we would have had a late night house fire into the roof when kids were asleep…

      Laundry Light Fitting Failure

      PETG in this kind of situation just becomes fuel and possible a very, very, very bad day…

      I know v0 spools are more expensive, but cheaper than just about any of the disaster situation alternatives, so I always suggest you prototype with PLA/PETG but print v0 for the finals…

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  • cantstopthesignal@sh.itjust.works ⁨2⁩ ⁨weeks⁩ ago

    Ya. I don’t run more than 5A (basically a usb) through 3d printed stuff for that reason. Filament is designed to melt.

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    • helix@feddit.org ⁨2⁩ ⁨weeks⁩ ago

      You mean 5W?

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    • Nomad@infosec.pub ⁨2⁩ ⁨weeks⁩ ago

      I think you want to say 5W? Amperage is just half of the equation. :)

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    • chiliedogg@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

      You run 5 amps through a USB?

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• blue_morpho@lemmy.world@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

  I don’t understand the purpose of the exposed daisy chained cables. If it is not meant to be frequently unplugged, then why not wire an internal bus of 14 awg with Wago?

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  • Legion739@piefed.zip ⁨2⁩ ⁨weeks⁩ ago

    I want it to be modular, so if I add another 2 servers, I can just add the server module in front, and its power module at the back.

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    • LastYearsIrritant@sopuli.xyz ⁨2⁩ ⁨weeks⁩ ago

      It is pretty awesome, only real problem is that if you have to replace anything in the middle, you have to shutdown everything above it too.

      That being said, it’s pretty fucking rad.

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• bootstrap@lemmy.dbzer0.com ⁨2⁩ ⁨weeks⁩ ago

  How is the power wired exactly? It looks like youve piggy backed off each cable before it, meaning the first cable is carrying the load from all after it which it usually isnt designed to do, should be fine if appropriately rated to the equipment.

  Looks mint!

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  • Legion739@piefed.zip ⁨2⁩ ⁨weeks⁩ ago

    Yea each one runs through the previous module, so all the power goes through the first module.

    IEC 13/14 connectors are rated for 10A (2300 W at 230 V) which isn’t much lower than what you can run through your wall outlet.

    That’s very high, to give you an idea the 6 things I have plugged in draws ~240w, so I could chain up ~60 mini PC’s and only then would I be over the ~2300w limit.

    I do now mention this in the Safety section of my “How to build this” write up

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    • bootstrap@lemmy.dbzer0.com ⁨2⁩ ⁨weeks⁩ ago

      Looks like youve done your research!

      Depending on the kettle model, most draw just under 10A these days. General household outlets (at least in australia) are only rated for 10A anyway.

      Ive used hundreds of kettle leads in my time and never seen one used for an actual kettle funnily enough

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• blockheadjt@sh.itjust.works ⁨2⁩ ⁨weeks⁩ ago

  Serial power for anything with critical data… no thanks

  One fails, everything after it fails

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  • Legion739@piefed.zip ⁨2⁩ ⁨weeks⁩ ago

    My setup is as resilient as this would be: image

    I haven’t added any failure-modes

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    • Eheran@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

      Huh? What is the mains cable mess for then?

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    • LastYearsIrritant@sopuli.xyz ⁨2⁩ ⁨weeks⁩ ago

      It might be clearer to say it’s more kike your house wiring, instead of a power strip.

      This is almost exactly how outlets are Daisy chained through a run.

      Basically you have a homelab where every device is plugged into the next outlet along a wall, with each outlet being really close together.

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    • chewypoops@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

      Power strips run in parallel that’s one point of failure for the whole rig.

      Your setup runs in series. That’s on point of failure per powered device in the rig.

      And if it doesn’t run in series, you really need to explain the wiring on the back of your rig, because I cannot make sense of it otherwise.

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• irmadlad@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

  Nice work OP. Clean and sharp. These mini servers are awesome.

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• ravenn@lemmy.blahaj.zone ⁨2⁩ ⁨weeks⁩ ago

  mega ducky 200 is amazing

  super clean build

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• Ertain@feddit.online ⁨2⁩ ⁨weeks⁩ ago

  Looking good.

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• one_old_coder@piefed.social@piefed.social ⁨2⁩ ⁨weeks⁩ ago

  Thanks for the photos and web site, it shows a bit what is happening inside and it’s great.

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  • Legion739@piefed.zip ⁨2⁩ ⁨weeks⁩ ago

    Sure thing, there’s lots more details on my GitHub Write-Up including how to wire it up etc.

    image image

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    • ggtdbz@lemmy.dbzer0.com@lemmy.dbzer0.com ⁨2⁩ ⁨weeks⁩ ago

      I’ve thought about this exact problem and I find this very pleasing to look at. Nice work

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• Fmstrat@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

  This looks great! Any thought on relay control? I built an 8 outlet box with relays inside so I can direct control power to each server with a Raspberry Pi. It runs PiKVM and is also attached to an 8 port KVM for control.

  Image

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  • Legion739@piefed.zip ⁨2⁩ ⁨weeks⁩ ago

    Uggg don’t give me ideas, I’ve already sunk way too much time into designing this 😅️🤣

    So you could just put a relay between my power-module and your server, and it’s problem solved.

    A redesign to incorporate one of these would be great, there are also variants that monitor power draw, so you’d be able to see each servers power usage and switch it on or off remotely. image

    Why are you doing this to me?

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    • Fmstrat@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

      Hah, yea I used a pre made box to cover off on safety in the lazy way. Using one of these boards inside it: a.co/d/08aDId5p

      Most of my custom work was on the front so I could fit multiple mini PCs side by side. Everything designed in FreeCAD with color coded cables per machine 😀

      Image

      Edit: ignore the circle. Apparently this photo was used to tell my partner what to unplug during some testing.

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• fufu@feddit.org ⁨2⁩ ⁨weeks⁩ ago

  Bestagons <3 great build!

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• aqua_cat@pawb.social ⁨2⁩ ⁨weeks⁩ ago

  Is there a reason for naming your website same as EU programme for education, training, youth and sport?

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  • Legion739@piefed.zip ⁨2⁩ ⁨weeks⁩ ago

    My surname is Erasmus

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    • 6_electrons@piefed.social ⁨2⁩ ⁨weeks⁩ ago

      gotta ignore trolls..

      its not even close… https://erasmus-plus.ec.europa.eu/ vs https://erasmus.works/

      wtf

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    • aqua_cat@pawb.social ⁨2⁩ ⁨weeks⁩ ago

      I see…

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  • Fondots@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

    I mean, Erasmus is a pretty well-known historical figure (and where, I assume, that programme gets its name)

    That’s where my mind went first.

    Turns out we’re both wrong and it’s just OP’s name like he said in the other comment, but I’m curious how you made that connection? Not passing any judgement on it, just curious since your brain reached a different conclusion than mine and I’m curious how you got there.

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    • davidagain@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

      I knew a couple of people who studied in continental Europe under the Erasmus scheme before Brexit, and the far right were always claiming during the referendum campaign that the EU would never chuck the UK out of anything because we’re so awesome and they need us and our money so much. Turns out there’s a limit to how much a club misses its most loudly critical influential member.

      So amongst Europhile Brits, Erasmus means young people’s opportunities to study abroad first, and name from history that it honours second. I might not have heard of Erasmus if it weren’t for the Erasmus scheme, and I had to check just now whether he was a historical figure or someone from Greek mythology. Awesome surname for a person in real life to have, though.

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    • aqua_cat@pawb.social ⁨2⁩ ⁨weeks⁩ ago

      I rolled into it few months ago and am getting ready for a exchange trip to Spain so it got burned into my brain by now.

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  • HeyThisIsntTheYMCA@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

    erasmus is a perfectly cromulent name

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• SoulKaribou@lemmy.ml ⁨2⁩ ⁨weeks⁩ ago

  I have the same plants; you have good taste, it’s undeniable

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• happyborg@fosstodon.org ⁨2⁩ ⁨weeks⁩ ago

  @Legion739 nice, good job as they say. Mine will never look neat and tidy but I appreciate the pics all the same.

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  • Legion739@piefed.zip ⁨2⁩ ⁨weeks⁩ ago

    Thanks!! Designing it was a BITCH, I knew almost nothing about CAD before this, but hopefully my designs can help some others cleanup the power side of their racks.

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    • happyborg@fosstodon.org ⁨2⁩ ⁨weeks⁩ ago

      @Legion739 Did you 3D print yourself or send the designs away? What did you use software wise?

      Just curious, I don't have time for this atm but love the idea, so maybe one day.

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    • happyborg@fosstodon.org ⁨2⁩ ⁨weeks⁩ ago

      @Legion739 oh, I see you have a printer! Which one?

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• M137@lemmy.today ⁨2⁩ ⁨weeks⁩ ago

  I’m disappointed there’s not a duck on each rack.

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  • Legion739@piefed.zip ⁨2⁩ ⁨weeks⁩ ago

    There are more duckies, a lil giraffe and a turtle at the front

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• Malica@lemmy.zip ⁨2⁩ ⁨weeks⁩ ago

  Great job it looks fantastic

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• herseycokguzelolacak@lemmy.ml ⁨2⁩ ⁨weeks⁩ ago

  This is so organized that my eyes hurt. You should see my messy setup :(

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