PSU for Vertex K8400 is 15V needed?

Vertex 3D Printer Vertex - Wiring and electronics
1

Hello All

I am planning a heated bed, and i have a really nice 12V 600W PSU laying around.

xppower.com/EN/100469/SMC-SMD-Series

Would it be possible to run the main board on 12V ? (Can be adjusted to around 13.5-14V max)

Any drawbacks? Less heating in hotend?

Alternatively i could run 2 psu… But the SMC has all the juice i would ever need.

2

I have measured the max voltage from my SMC. It is 14,19Volt under load.

Is the 15Volt needed or would 14,3V be enough?

Regards Tommy Fer

3

[quote=“Fer”]Is the 15Volt needed or would 14,3V be enough?[/quote]It should be enough. Don’t forget that you need a power expander between your bed and the controller board.

4

Thank you Raby :slight_smile:

I allready have the power expander. I am currently running with 2 PSU, kind of stupid.

Regards Tommy Fer

5

Just a feedback.

It runs perfectly on my 13,8Volt powersupply.

6

[quote=“Fer”]Just a feedback.
It runs perfectly on my 13,8Volt powersupply.[/quote]

Fine! Did you power up the bed on the 12V Input?

7

[quote=“raby”][quote=“Fer”]Just a feedback.
It runs perfectly on my 13,8Volt powersupply.[/quote]

Fine! Did you power up the bed on the 12V Input?[/quote]

Yes, and it work fine and fast :slight_smile: when it is on it is using 18,2 A. So it is 13,8*18,2= 250W when it is heating. It heats up very fast.

8

That is nice Tommy :slight_smile: