if you are good at electronics, you can put in a rectifier on each supply, that could prevent voltage difference problems, but load wise will be tricky, to passively induce load balancing, you can try a small value (but high power resistance, wastes some power) ... maybe 0.5ohm 20w? ... but for simplicity, no resistor is ok, some laptop PSU are current limiting, it just stops at its max supply.
JBernal Wrote:
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> I just installed a new PCB heated bed on my
> printer but it seems that my main power supply
> (laptop type) can only run either the extruder or
> the bed, not both at the same time. I have a
> second power supply which has the same specs, so I
> am wondering if it would be safe to wire them in
> parallel so as to distribute the load among the
> two of them, or would this create a fireworks
> display?
JBernal Wrote:
-------------------------------------------------------
> I just installed a new PCB heated bed on my
> printer but it seems that my main power supply
> (laptop type) can only run either the extruder or
> the bed, not both at the same time. I have a
> second power supply which has the same specs, so I
> am wondering if it would be safe to wire them in
> parallel so as to distribute the load among the
> two of them, or would this create a fireworks
> display?