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.

Filter by
Sorted by
Tagged with
1
vote
2answers
51 views

Wiring heatbed into Main using ATX

I had my 3D printer powered by dual 24 V PSUs wired in parallel and my heatbed was wired into the main using a SSR to help power it. I replaced the two PSUs with a single Corsair 750 W ATX. My printer ...
4
votes
2answers
1k views

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 ...
3
votes
2answers
324 views

DQ542MA Blown Fuse

I purchased two DQ542MA drivers in order to run two NEMA 17 steppers. After about five days of use I noticed that the green indicator light had gone out on both drivers. The DQ542MA driver running ...
4
votes
1answer
167 views

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 ...
4
votes
4answers
3k views

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 ...
4
votes
1answer
584 views

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 ...
8
votes
2answers
9k views

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.
4
votes
1answer
688 views

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 ...
2
votes
2answers
448 views

Is there a G-code to get power supply state?

I'm using M80 and M81 G-codes to power on/off power supply. Is there a G-code to know the actual state of the power supply?
4
votes
2answers
2k views

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 ...
1
vote
1answer
121 views

Print failing when connecting mains loads

I am running the SeeMeCNC customized version of Repetier on a Rostock Max V2. I have experienced this problem with both the stock configuration along with an E3D The Chimera. Sometimes, when I am ...
7
votes
2answers
376 views

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 ...
6
votes
1answer
99 views

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 ...
7
votes
1answer
2k views

Running 12v on a 24v heater cartridge?

Would I damage anything running 12v on a 24v cartridge heater? I know it wont reach a max temperature 300 degrees celsius? I am using the e3d hotend set up
6
votes
2answers
253 views

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 ...
4
votes
2answers
979 views

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?
3
votes
2answers
4k views

Printer randomly stops, Is the power supply bad?

I have a prusa i3 with Mendel firmware and a RAMPS board. Recently it has been randomly stopping during prints. The LCD screen will lock up, the print will stop, and the heating elements will turn ...
5
votes
1answer
2k views

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 ...
1
vote
2answers
886 views

Is 22-Guage Stranded Hookup Wire the correct wire to connect the Switching Powersupply to RAMPs 1.4?

I obtained the following wire 22 Gauge Stranded Hookup Wire from Radio Shack: ...
3
votes
1answer
616 views

Can I use a multimeter to test the outgoing voltage of this power supply?

I don't want to blow out my multimeter or my electronics, so is it safe to test the DC output voltage with a multimeter on my OEM power supply?
4
votes
2answers
704 views

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 ...
3
votes
2answers
203 views

In the standard PC Cable Wire that goes from the wall outlet to the switching power supply, are they standard and what are the wire specifications?

What are the specifications of the three wires inside a PC cable that is used to connect the switching power supply to a US AC outlet. The positive, negative and ground appear to be the same gauge ...
8
votes
1answer
4k views

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 ...
7
votes
2answers
2k views

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 ...