How Hot the Heat Sinks Inside a PSU? October 02, 2014 02:37AM |
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Re: How Hot the Heat Sinks Inside a PSU? October 02, 2014 08:49AM |
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Re: How Hot the Heat Sinks Inside a PSU? October 02, 2014 08:57AM |
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Re: How Hot the Heat Sinks Inside a PSU? October 02, 2014 10:26AM |
Registered: 10 years ago Posts: 869 |
It took about 5 minutes to open my existing supply, clip the unnecessary wires, tape the ends, and put the cover back on. No need to spend the extra on a modular supply that you won't be using almost all of the modularity. Plus many that are going to build their own 3D printer likely have a old power supply laying around anyways...or can get an old used one fairly easily from somewhere.Quote
dc42
For the benefit of anyone else looking at this route, it's easier to get a modular PSU in the first place, e.g. the CX430M which I used to power my 3D printer for a while.
Re: How Hot the Heat Sinks Inside a PSU? October 02, 2014 11:49AM |
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Re: How Hot the Heat Sinks Inside a PSU? October 03, 2014 07:12AM |
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Generation 7 Electronics | Teacup Firmware | RepRap DIY |
Re: How Hot the Heat Sinks Inside a PSU? October 03, 2014 08:27AM |
Registered: 10 years ago Posts: 869 |
I did that for my first power supply. Groups of 3 or 4 wires were crimped together with a crimped lug, then soldered into the board by the manufacturer. This made unsoldering them quite difficult due to the mass as well as the heat wicking away into the wires being removed. It was just as easy to clip them close to the board and then tape over the ends to prevent them from accidentally making contact with something in case they moved. IOW, desoldering them would be cleaner, but it may be more difficult and there isn't really an advantage gained one way over another.Quote
Traumflug
Instead of stuffing these wires back into the housing I'd unsolder and remove them entirely.
Re: How Hot the Heat Sinks Inside a PSU? October 03, 2014 12:45PM |
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Re: How Hot the Heat Sinks Inside a PSU? October 03, 2014 04:49PM |
Registered: 10 years ago Posts: 869 |
There are all sorts of designs. Some are thermostatically controlled so the fan only kicks on or ramps up if the temperature rises. Other's have better or larger fans that spin quieter or slower. Some are cheap or have smaller fans that run noisier and faster. Based on the noise your printer's mechanics will make when printing, you'll probably never hear the PSU fan when your printer is doing something even if you had a moderately noisy fan.Quote
Garry Bartsch
One thing I like about this ATX PSU is it is totally silent. Are the OEM type PSUs silent as well?
Re: How Hot the Heat Sinks Inside a PSU? October 03, 2014 05:37PM |
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Re: How Hot the Heat Sinks Inside a PSU? October 04, 2014 04:50AM |
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Re: How Hot the Heat Sinks Inside a PSU? October 04, 2014 02:30PM |
Registered: 10 years ago Posts: 363 |
Quote
dc42
There is a thread in the Ormerod forum on modifying an ATX PSU to improve regulation on the 12V rail.
Re: How Hot the Heat Sinks Inside a PSU? October 04, 2014 06:44PM |
Registered: 10 years ago Posts: 14,672 |
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Garry Bartsch
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dc42
There is a thread in the Ormerod forum on modifying an ATX PSU to improve regulation on the 12V rail.
Is this the thread?
Re: How Hot the Heat Sinks Inside a PSU? October 04, 2014 07:43PM |
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Re: How Hot the Heat Sinks Inside a PSU? October 06, 2014 09:39AM |
Registered: 10 years ago Posts: 869 |
What electronics are you using? RAMPS for instance can turn on and off the power supply, running the micro controller just off of standby power until full power is required. Many power supplies aren't at their rated efficiency when they are in essence on buy under an idle load. If you're always printing, then that's not really an issue. But if you leave it on for long periods and not printing, then you're wasting energy (granted, not a huge amount).Quote
Garry Bartsch
Mostly I am concerned that the machine is quiet when it's not working because I don't turn it off between prints.
Re: How Hot the Heat Sinks Inside a PSU? October 07, 2014 02:57PM |
Registered: 10 years ago Posts: 363 |
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cdru
What electronics are you using? RAMPS for instance can turn on and off the power supply, running the micro controller just off of standby power until full power is required.
Re: How Hot the Heat Sinks Inside a PSU? October 07, 2014 11:59PM |
Registered: 13 years ago Posts: 1,352 |
Re: How Hot the Heat Sinks Inside a PSU? October 08, 2014 09:52AM |
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Re: How Hot the Heat Sinks Inside a PSU? October 11, 2014 01:46PM |
Registered: 10 years ago Posts: 363 |
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NoobMan
So at this point we are counting two marbles.
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cdru
You can put M80 and M81 and the beginning and end of your print job to control the power supply.
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cdru
If you go this route, you'll need to power the MEGA board either via USB, ...
Re: How Hot the Heat Sinks Inside a PSU? October 13, 2014 01:52PM |
Registered: 13 years ago Posts: 1,352 |
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Garry Bartsch
So if the USB is connected to the MEGA does that mean the USB is powering it? I'm guessing yes.
Re: How Hot the Heat Sinks Inside a PSU? October 13, 2014 02:26PM |
Registered: 10 years ago Posts: 363 |
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NoobMan
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Garry Bartsch
So if the USB is connected to the MEGA does that mean the USB is powering it? I'm guessing yes.
I think the mega will choose which supply to use. If there is a supply from jack or ramps it will use that, otherwise it will choose to fed from the usb supply. So yes it will use usb power if only that is available.
Re: How Hot the Heat Sinks Inside a PSU? October 13, 2014 03:37PM |
Registered: 13 years ago Posts: 1,352 |