Some questions before I replace my power supply  

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nicholas.m12
(@nicholas-m12)
Eminent Member

My power supply recently died on my MK3. After doing some searching and reading, I plan on replacing it with a Meanwell LRS 350.
I am always a little leery when dealing with electronics so I wanted to ask some questions before I jump in. I have put together a couple computers and bought the MK3 kit so I have some experience.

1. This power supply will work, correct?

https://www.amazon.com/MEAN-WELL-LRS-350-24-Printer-Industrial/dp/B07VRK86SP/ref=sr_1_2?crid=38YWZ4C3LCEVZ&dchild=1&keywords=meanwell%2B350%2B24v%2Bpower%2Bsupply&qid=1590635420&s=electronics&sprefix=meanwell%2B24%2Celectronics%2C198&sr=1-2&th=1

2. Can I reuse the power switch and plug from the old unit or should I get new ones?

3. Is there anything I should pay particular attention to when wiring things up? I don't want to fry my printer or burn my house down.

Any advice or wisdom is greatly appreciated.

 

Posted : 28/05/2020 4:24 am
cwbullet
(@cwbullet)
Famed Member

I purchased the same one and paid a few bucks more.  It will work.  

MEAN WELL LRS-350-24 DC Power Supply, 24V 14.6A 350W

I replaced my power supply cables at the same time and added quick connectors:

XT60 Connectors Female Male

I also replaced the case:  

https://www.thingiverse.com/thing:3450424

This allows me to put my power supply on my table outside my enclosure.  

Posted : 28/05/2020 10:19 am
rmm200
(@rmm200)
Noble Member

Meanwell should be fine. I have the same one sitting, waiting for an excuse to add it in.

Thingiverse has some PSU ends you can print that add a socket and switch. You would need to buy the appropriate parts.

MK3 advantage - you can move the power fail board to the new PSU. Can't do that with the MK3S PSU.

Posted : 28/05/2020 3:56 pm
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