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  1. #1
    Clive S's Avatar
    Lives in Marple Stockport, United Kingdom. Last Activity: 12 Hours Ago Forum Superstar, has done so much to help others, they deserve a medal. Has a total post count of 3,346. Received thanks 618 times, giving thanks to others 87 times. Made a monetary donation to the upkeep of the community. Is a beta tester for Machinists Network features.
    Quote Originally Posted by chillybo View Post
    's
    Thanks Clive, I've watched a lot of Joe's Youtube videos. He has put a lot of work into his machine. If I was to build my own unregulated power supply to match my Nema 34's (4.6nm) that each have 3.4 mh inductance I have worked out that the 'sweet spot' voltage would be around 59 volts. Should I be looking at something like this when I buy the toroidal transformer.
    https://www.amazon.co.uk/dp/B00MWQDI...4-e511ab4d5346 ? or this that has a higher current (and price) https://www.amazon.co.uk/dp/B00MWQDO...1ab4d5346&th=1
    Then the two 30 volt outputs would be connected in series to give 60 volts. I've looked at a few Youtube tutorials but i've still got lots to learn.
    Regards Chris
    If I understand correctly you are building a 1200x600 router. if so I personally think you are going way over the top with nema 34 motors and way over the top with the 1000Kva toroidal my router is 1600x1000 using nema 23 and a 500kva toroidal . running 68 v. I can easily get 10mtr/min rapids.
    Click image for larger version. 

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    Last edited by Clive S; 23-04-2019 at 05:19 PM.
    ..Clive
    The more you know, The better you know, How little you know

  2. #2
    Hi Clive I'm sure your right about how nema 23's would have been more than sufficient. I think my choices could certainly have been better but at the time they were based on an eagerness to get started combined with limited time to research due to other study and work commitments. Also I intended to build a slightly bigger machine but later decided to scale it down. I am now in position where I am committed and can't change where i am with the project so I want to try and make it work as best as possible with the assets I have. I am pondering how other than overspending are there any detrimental effects that I can expect from using nema 34's on my machines functionality?
    Regards Chris

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