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UMO 1.5.7 hot end fan PWM Voltage, current ranges?


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Posted (edited) · UMO 1.5.7 hot end fan PWM Voltage, current ranges?

As the title says.  Hopefully someone has prior knowledge or easy access to this info.

 

I would like to explain my need to know.  Some time ago I rigged my hot end up with a print cooling manifold that's supplied by compressed air.  It's lighter and provides improved cooling capacity with an even 'spray'.  It's connected to my air compressor at about 60psi and supplied by a hose added to the bowden bundle. The weakness of the setup is that the only means of control is by manually adjusting a small thumb screw needle valve.  It can range from off to a lot of cooling

 

I want to buy an industrial PWM (proportional) flow control valve and connect it thru the existing print fan circuit.  Thus the need to start with an understanding of the target circuits capacities. I think I can find the right valve for $125 or less.  Depending on the PWM signal, a small converter device may be needed for a boost.

 

Anyone?  Thanks in advance..

 

P.S.  Being able to only select from a predefined set of thread tags seems very limiting.  Can threads be searched by their tag definitions?  Feasible or useful to have user defined tags?

 

 

Edited by mastory
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    • 3 weeks later...
    Posted · UMO 1.5.7 hot end fan PWM Voltage, current ranges?

    I think the fan currents are less than 100mA and thus only small transistors are used there. 

    How much current / voltage does your valve need?

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