PSU minimum amps

This topic contains 3 replies, has 3 voices, and was last updated by  CharlieBravo 3 months ago.

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  • Author
    Posts
  • #41465

    CharlieBravo
    Participant

    Hello,

    My ATX PSU would not come on that I had planned to use for the power.  I have a 12v 4.58A power supply that would like to use until i get a new PSU in to finish the build.  I seen that the recommended rating is 5a on 12 volts.  Did i miss something or could this smaller PSU work until i get the larger one in?  I am not going to be running full time but want to get motors wired and functional.

    Any tips would be greatly appreciated.

    #41467

    Jeffeb3
    Participant

    Are you 3D printing? If not, then that 4.58A PSU would work fine. I’m also assuming you aren’t powering your spindle/router with that same supply. 4.58A is enough for the motors, drivers, and controller.

    1 user thanked author for this post.
    #41473

    Ryan
    Keymaster

    Last time I checked with all the steppers running and a hot end heating is was pulling [email protected] once the hot end heats up this would be even less. I should run this test again to verify (2 1/2 years later) but you should be fine.

    #41495

    CharlieBravo
    Participant

    Sweet!  I will not be doing 3d printing at this time or on this PSU.  the spindle has it own PSU..

     

    thanks for the quick feedback.

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