24V Duet Powersupply size

So, I'm working on my third printer build and after going for the larger 300x300 print area I noticed all the heatbeds that size are 24V, since the Duet can function with 24V I figure I'll just build it around 24V. But, how large a powersupply would I need for a Duet with 5 motors (XYZ and Dual extruder) and a heatbed? On my 12V version, its a 30A powersupply. This is for the 0.8.5 Duet board if that matters.

On a side question, will the 7" PanelDue also function with the Duet being supplied 24V?

Edited 1 time(s). Last edit at 06/23/2016 10:51AM by PDBeal.

For a single extrusion printer using 24V, the heated bed current + 5A should be enough, although you may want to go a little higher to allow more margin. My delta has a single 24V 30W hot end, a 7" Panel Due and a mains voltage bed heater, and has been running happily with a 24V 5A PSU.

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Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod

Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].

I have an industrial Siemens SITOP 24VDC powersupply rated at 10A with voltage adjustment from a demo kit that was scrapped, but had one of those hmm moments and figured to double check and ask if the 10A 24V powersupply would be enough.

Quote
PDBeal
I have an industrial Siemens SITOP 24VDC powersupply rated at 10A with voltage adjustment from a demo kit that was scrapped, but had one of those hmm moments and figured to double check and ask if the 10A 24V powersupply would be enough.

A 24V heater for a 300x300mm bed ought to draw about 12A if it is designed to produce sufficient heat to reach 100C for printing ABS. So a 10A PSU will certainly not be enough, and 15A probably won't be either. The 24v LED power supplies seem to come in 10A, 15A and 20A versions, with nothing in between, so I think you will need to get a 20A supply.

Alternatively, use a mains-voltage bed heater. then your 10A PSU will be more than adequate. However if your printer has a moving bed, then this isn't as easy to do safely as it was on my delta printer.

Edited 2 time(s). Last edit at 06/23/2016 12:29PM by dc42.

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Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod

Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].