3D Printing Stack Exchange
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Questions tagged [switching-power-supply]

A switched-mode power supply (also called an SMPS or "switcher") converts electrical power from one state to another. An SMPS can for instance be used to convert power from an electrical wall outlet into a voltage, frequency and amperage usable by smaller electronic circuits.

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What is the power consumption of the heatbed and hotend?

What is the power consumption of your heatbed (size) and hotend (model)? I want to verify that it is possible to use a battery to power them.
user9350
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Is this fuse a good choice for my Prusa i3's power supply and RAMPS 1.4?

Wondering if this fuse is safe to use in this switch/plug to turn on /off a 12V DC 30A Power Supply 360W Power Supply that will power a RAMPS 1.4 board for a Prusa i3 with an external led display that contains an SD Card Reader. I found the…
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Are these the right types of electrical connectors for hooking my Switching Power Supply up to a wall outlet?

From what I understand, when you hook up the Switching Power Supply 12v Dc 30a 360w to the wall outlet, you have to be very careful; careful not to get the wires mixed up; careful not to have anyone or anything touch the leads (in fact the first…
leeand00
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Frightened of Cheap Chinese Power Supply as I hook up the heated bed

My 12V DC 30A Power Supply 360W Power Supply is really cheap, and it's worked well for setting up the motors; but now that I'm on to the heated bed, which uses considerably more Ampage than that of just the motors, I'll confess, I'm getting…
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Do I have to buy all new components if I were to get a RAMPS 1.4 that supports 24 V power?

Ryan Carlyle seems to keep suggesting in my questions here, that using a 24 V power supply is safer than using a 12 V one. Early on, I ordered the wrong power supply, obtaining a 24 V one instead of a 12 V; I found that it was incompatible with my…
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Power Supply Safety

I just recently purchased a new MightyBoard (Rev G) for my Replicator that requires a new power supply. The power supply for the Rev E was a 24 V/9.2 A which was necessary for the dual extruders and heated bed. I know I need a 24 V power supply,…
tbm0115
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Do the TW, THW and THHN or THWN wire insulation types matter in terms of powering RAMPS 1.4 or the MK2a Heat Bed?

I'm still looking at wires for my Prusa i3, to go between the power supply and RAMPS 1.4, and the power supply and the MK2a Heatbed. I also recently found a 400 ft. Wire Storehouse that I bought from Harbor Freight which has wire sizes in it from…
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What does the trimpot on my Switching Power Supply do?

On my Switching Power Supply there is a little orange trimpot that's marked VR1; what does that do, and does it work similar to the ones on the stepper drivers?
leeand00
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Safely Hooking a Switch up to an OEM Power Supply?

I ordered an OEM Power Supply and I intend to hook up with this rocker switch I believe it's like the one specified in the Power Supply Documentation which reads: In the US, IEC320 C14 plug connections are common, but use your preferred…
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Anet A8 (Prusa i3) Power Supply Fuse

A little backstory to help you understand the situation. I put the 3D printer together and turned it on and everything seemed fine until I started printing. It didn't even get the first layer down when the screen reset and so did the print. I…
kyle thode
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Dual PSU with one switch fuse

My home built printer has been having issues running properly. The x/y/z motors will run freely with standard non build position commands but when they are suppose to start a raft layer and they freeze up and don't respond properly. When I put my…
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Speeding up the heating of the heated bed

Currently I am using a 12 volts, 20 amperes power supply (Model S-240-12) The stepper motors and the extruder need 5 amp, and the heated bed build plate needs 11 amp. Technically you only need to use a 12 Volts, 16 amperes power supply, but I…
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MOSFET as a safety feature

When going through printer reviews, I often see the presence of a MOSFET listed as an important safety feature. I understand the MOSFET to be a transistor, but I haven't understood how it is used in the circuitry of a printer, and - above all - why…
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24 V heated bed from -12 V and +12 V ATX power supply?

As long as there's a MOSFET in between, can I supply 24 V bed/extruder heat from an ATX power supply using -12 V and +12 V and ignoring the common rail? I assume so, I can't think of a reason why not, but want to check.
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Why would one choose 12 V from 24 V, from a safety standpoint?

I have seen many people saying on this site and many other 3D printing websites that 24 V systems are safer, compared to 12 V systems. By safer, I am talking in terms of fires or other electrical and component failures. Why would a 24 V system…
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