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  1. #21
    Doddy's Avatar
    Lives in Preston, United Kingdom. Last Activity: 7 Hours Ago Has been a member for 8-9 years. Has a total post count of 1,338. Received thanks 186 times, giving thanks to others 64 times. Referred 1 members to the community.
    Link to information that recommends a DC power supply for the servo driver?

  2. #22
    Quote Originally Posted by Doddy View Post
    Link to information that recommends a DC power supply for the servo driver?
    No such thing, it was my assumption, so in other words I don't need any PSU at all, just plug the drivers directly to mains?

  3. #23
    Doddy's Avatar
    Lives in Preston, United Kingdom. Last Activity: 7 Hours Ago Has been a member for 8-9 years. Has a total post count of 1,338. Received thanks 186 times, giving thanks to others 64 times. Referred 1 members to the community.
    Read the specification for you selected drivers.

    You will always need part for control logic, switching etc., but if you have mains driven servo drivers then this would be a much smaller power supply, at lower voltage and power.

  4. #24
    Quote Originally Posted by Doddy View Post

    You will always need part for control logic, switching etc., but if you have mains driven servo drivers then this would be a much smaller power supply, at lower voltage and power.
    ah, that makes sense, okay, thanks.

  5. #25
    Some servo drives need only a AC supply, others need AC + 24V DC for the control logic.
    In all cases you will still need a DC supply for the motion controller and other things. Basically a small switching PSU like this: https://uk.rs-online.com/web/p/din-r...plies/0428477/

  6. #26
    gone
    Last edited by hardenum; 12-12-2020 at 12:06 PM.

  7. #27
    Why direct drive?

    Won't it be much harder regarding drawbar etc?

  8. #28
    gone
    Last edited by hardenum; 12-12-2020 at 12:07 PM.

  9. #29
    The Z looks complex. I assume you have a complete machine shop to build it. Ideally it should be as wide as the gantry carriage.

    I would go fixed gantry for the relatively small working area you planned.

    Maybe also consider simplifying the shape of the columns, but in the end you'll be the one to build the molds :)

  10. #30
    Quote Originally Posted by jarjar View Post
    The Z looks complex. I assume you have a complete machine shop to build it. Ideally it should be as wide as the gantry carriage.

    I would go fixed gantry for the relatively small working area you planned.

    Maybe also consider simplifying the shape of the columns, but in the end you'll be the one to build the molds :)
    I do not, all I have is a hand drill and a dremel, I'm outsourcing it. The sheet metal cutting and welding. It's not more complex then a straight or a C plate. It's just a square steel tubing in the end. I've actually received a quote for the whole piece from the local shop EUR600 total for the thing.

    Besides the Z, nothing is final yet. I'd go with a fixed gantry but I haven't got a clue yet as to how I'd deal with the bed. What I mean by that is I want to be able to mount the 640x320 work piece vertically. With a moving bed, I don't have any ideas how to do that though.
    Last edited by hardenum; 05-12-2020 at 01:52 PM.

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