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  1. #21
    Quote Originally Posted by chillybo View Post
    Thanks Michael. Ive started my research by watching this
    https://www.youtube.com/watch?v=lTtYkofw-Jg
    The search continues for an unregulated toroidal PSU
    Regards Chris
    Take a look at Joes build and power supply https://www.youtube.com/watch?v=4OoQ...zD30sZjtp_VyqY
    ..Clive
    The more you know, The better you know, How little you know

  2. The Following User Says Thank You to Clive S For This Useful Post:


  3. #22
    Quote Originally Posted by Clive S View Post
    Take a look at Joes build and power supply https://www.youtube.com/watch?v=4OoQ...zD30sZjtp_VyqY
    '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
    Last edited by chillybo; 2 Days Ago at 12:39 AM.

  4. Chris you might want to look here:
    https://airlinktransformers.com/cate...60%2B60&va=500

    As the prices from Amazon are a good bit higher then theirs and they are UK based. So you might want to check them out. Save you a good bit of money as well as have a UK based company to back the quality of build.

    Michael
    CAD software Shark Pro v10, Also Aspire v9.0
    CAM Software Aspire v9.0, CamBam v1 beta12
    CNC Machine: http://www.mycncuk.com/threads/3661-...Second-machine
    3D printers: 2 x Prusa MK2S soon to be 2.5's and 1 x mini Delta (180 x 180)
    Work with Solid Surfaces, Acrylics, Woods, Foamboard, PLA, ASA, PMMA
    Work Computer: Lenovo D20, K4000, Tesla C2070, 64GB RAM

    www.marino-customs.com

  5. #24
    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; 2 Days Ago at 04:19 PM.
    ..Clive
    The more you know, The better you know, How little you know

  6. #25
    Quote Originally Posted by m.marino View Post
    Chris you might want to look here:
    https://airlinktransformers.com/cate...60%2B60&va=500

    As the prices from Amazon are a good bit higher then theirs and they are UK based. So you might want to check them out. Save you a good bit of money as well as have a UK based company to back the quality of build.

    Michael
    Thanks Michael for pointing me in this direction I did a bit of a google search but did not find this company. They certainly have a wide range of products that are competitively priced. I'm sure I will be using them. I have just watched this Youtube material to expand my knowledge. https://www.youtube.com/watch?v=CAYKno16weE
    The chap seems to explain thing quite clearly.
    Regards Chris

  7. #26
    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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