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Is this a suitable PSU replacement

Posted by khannon3 
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khannon3
Is this a suitable PSU replacement
September 14, 2015 09:10AM
Hi RepRap forum,

I moved stuff to my new house recently and left my power supply behind. I have a print job to do this week and I am udner pressure to find a local PSU. Is this PSU suitable for a Prusa i3 with a heated bed?

[www.adverts.ie]

Thanks
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ElmoC
Re: Is this a suitable PSU replacement
September 14, 2015 10:01AM
If your other PSU was 12v, then that one should be fine. Can't give a definite answer without knowing all the specifics of your printer. Mainly, the size of your heated bed (size as in wattage, not physical dimensions).

Edited 1 time(s). Last edit at 09/14/2015 10:01AM by ElmoC.
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khannon3
Re: Is this a suitable PSU replacement
September 14, 2015 10:28AM
Thanks for your reply. Its a 12v prusa i3 with a j-head and a mk heated bed. It all pretty standarderd. Should I be goign for the 12V 12.5A 150W option? Is that the best choice.
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J-Max
Re: Is this a suitable PSU replacement
September 14, 2015 10:51AM
Hi,

The bed requires at last 10A and the other parts about 7.5A.
So you need at last 20A. 30A seems to be a good choice,
because you may want someday a seccond extruder,
and most of the kits uses this power rate too.

++JM

Edited 1 time(s). Last edit at 09/14/2015 10:52AM by J-Max.
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khannon3
Re: Is this a suitable PSU replacement
September 14, 2015 11:03AM
Hi J-max,

Thanks for replying. Good point! Will I need to make any adjusted to Marlin or do i just need to reconnect everything?
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gmckee
Re: Is this a suitable PSU replacement
September 14, 2015 11:45AM
Yep. No firmware adjustment needed

Prusa i3 Rework - Ramps 1.4 - E3d Lite6 - Full Graphic LCD Controller
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