I have a 3D printer at home and looking to improve some parts.
The PSU on the printer has no labels so I'm not certain what it's doing - but the 3D printer's spec. sheet says it's 600W peak and it definitely puts out 24Vdc - so I'm assuming the PSU is a [rather noisy!] 24V 25A PSU.
So, as it's noisy and it's in my living room (the wife loves it, honest...) I'm looking to a) quieten it down and b) tweak it to improve it.
I've looked at getting this so as to get rid of the noisy PSU and maintain the 600W capacity.
Currently there are 2x 24V 0.15A fans connected directly to the PSU output but I have also bought 2 of these 12V 0.06A silent fans - the reviews are decent and I think they look pretty good, for what it's worth. I've snipped the signal wires and considered just putting them in series but thinking now I'd rather step the PSU output down to 12V then supply them in parallel / independently.
I've bought 2x of these terminal rails which I'm thinking I'll hook up to the supply and return from the PSU then I can just tag the 24V loads from there (to tidy things up somewhat as it's a complete mess at the moment.)
The controller board (here) is 24V and is supplied directly from the PSU output - it supplies the stepper motors directly from itself. The controller also controls a heated bed via a solid state relay which is hooked up on the power side directly to the PSU output- I don't know the rating for the heated bed this but is the beefiest component of them all.
Possibly I'll get another terminal rail and make it +12V via this 5A 24-12Vdc converter (60W), fed from the +24V rail - then I could supply the fans directly from this and simply take the fan returns back to the -24V rail. I'm unsure if this would be OK to do or if I'd need to have another rail with -12V? I'm just hoping that I won't blow the fans (as I already did with my attempt at connecting a LED strip - see next)
I also currently have a LED strip fed directly from the PSU but looking to switch that out for Philips Hue Lightstrip so I can switch it off if I like (during long prints the printer just sits there lighting the room at night.) I bought the Philips Hue Lightstrip Plus, cut the connector off which connects to the wall socket/ transformer and crimped some terminal rings to it then connected it to the PSU, but when I switched the printer on I heard a "puff" from the small electronic box and can smell something has burned up inside it. I'm unsure what's gone wrong here - I assumed the output from the PSU would've been fine to connect straight to the little module, as the wall-socket/transformer is rated at 24V 0.83A (20W) and the PSU output is 24V.
I assume the current has smashed it - but wondering how I could limit this so if I have a +24V rail being fed from the PSU I could then supply the Philips Hue Lightstrip Plus from it?