Welcome! Log In Create A New Profile

Heat Bed Power Problems

MichaelSoft

Heat Bed Power Problems
July 03, 2013 09:28PM

Registered: 10 years ago
Posts: 3

Hi All,

I have a problem with power. When I get the heat bed to heat up it heat perfectly fine but when it gets up to temperature the power cut out completely. Does anyone know what is likely to cause this?

I am using an ATX power supply. The 12V is rated to 8A. I assume that this maybe the issue. Any ideas?

Thanks.

MichaelSoft

Reply Quote

vegasloki

Re: Heat Bed Power Problems
July 03, 2013 10:40PM

Registered: 11 years ago
Posts: 661

You need a bigger PSU. A search of the forum will show many threads on the subject and what the power requirements are.

Reply Quote

jbernardis

Re: Heat Bed Power Problems
July 04, 2013 01:01AM

Registered: 11 years ago
Posts: 1,320

Yeah, 8 amps isn't enough. Count on about 11 amps for your typical MK2 heat bed, plus anywhere up to another 5 amps for heaters/motors/fans, etc. I'd say minimum 16 amps total, 20 to have a good margin of safety. I actually use a 30 amp PSU that I got on eBay and have never had a problem.