Legion739

image This might be a better angle.

We stand on the sholders of giants.

It’s always good to give back to the community and open source it

Ideally the zig zag isn’t there, but did you see the before?

I have basically taken a power strip, and made each plug a module.

image the inside of a power strip, like in this image, is in series.

mains → yellow → red → blue → green → blue(end)

If Yellow is broken, it knocks out everything before it.

If what is plugged into yellow is plugged out, or disconnects everything else keeps working.

The same is true for my setup.

You’re explaining scenarios where you incorrectly use this setup.

You can wire the switches so that if switched off it only kills power to that server and nothing else in the chain. You then basically have this: image

Yea if you rip out a cord that you shouldn’t you’re going to lose power, that is true of any power strip.

This has more components, so more things can fail, I will give you that, but that’s unlikely and for me at least, worth the trade off in making it modular.

Very nice, is that a KWS rack?

I don’t think they existed yet when I started my journey, they seem very solid.

I went for aluminum for max strength and didn’t trust 3D printed parts for strength, but after getting a printer, I see you can print fold out chairs that you can stand on, so they can be more than strong enough.

I don’t think I understand your question.

If you plug all your servers into a power strip like this, all the power goes through the power strip and through one cable. If there is a fault in the power strip, all the servers will lose power as a fuse will trip.

The same is true for my setup, I have added no new failure modes.

The name has been in my family far longer than that program has existed, so the way I see it, if anything, they are copying me xD

Thanks for this, I founds some self-extinguishing PETG, that’s really not much more expensive than PETG. Definitely worth the money

https://shop.filament-pm.com/petg-frjet-self-extinguishing-white-1-75-mm-0-5-kg/p166

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?

My setup is as resilient as this would be: image

I haven’t added any failure-modes

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

Yea I realised that is a limitation, but Eh I’d take that trade-off for the modularity and good looking backside.

It’s rare that you add/remove things, and technically you can just plug out the inside and only that server will go offline with the rest keeping power.

My surname is Erasmus

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.

Nice thanks!! You can get a 3D printer for fairly cheap to get started, the one I have is only 280 Euro now with 4 spools of filament

Nice thanks, that sounds good. I’d definitely only want to push to one place, if it then syncs to GitHub that’s fine.

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.

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

image image

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

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.

I have the Anycubic Kobra X, and used Onshape to 3D model things, it’s fairly easy to do. I for some reason just decided to make something incredibly complicated lol.

Lots of good YouTube tutorials out there to teach you everything you’d need to know.

I have the Anycubic Kobra X, you can buy it for 280 Euro including 4 roles of filament.

It’s the first one I ever got, great price and quality for getting your feet wet with 3D printing. My boy-math figured that it will pay for itself eventually by printing things instead of buying.

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.

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.