Ya. I don’t run more than 5A (basically a usb) through 3d printed stuff for that reason. Filament is designed to melt.
Comment on This is the back of my 10" Mini server rack -- Custom made 3D printed power modules for each server
Nomad@infosec.pub 16 hours 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.
cantstopthesignal@sh.itjust.works 13 hours ago
chiliedogg@lemmy.world 2 hours ago
You run 5 amps through a USB?
docandersonn@literature.cafe 49 minutes ago
USB-PD standard allows for 20V at 5A?
helix@feddit.org 12 hours ago
You mean 5W?
cantstopthesignal@sh.itjust.works 8 hours ago
I’m was assuming some kind of 3.3V or 5V logic, like an esp32 or an arduino. I don’t mess around with big power circuits at all. Sorry for the confusion.
Legion739@piefed.zip 16 hours 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.
snrkl@lemmus.org 32 minutes 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…