1. #1
    Hi guys.

    I am planing upgrade Z axis on my mini mill this winter and i would like to new spindle as well.
    My current mt3 spindle have terrible run out.

    Does anyone have experience with ebay BT30 spindle?
    Does it worth 230 (including postage)?

    https://www.ebay.co.uk/itm/192040624928

    Click image for larger version. 

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    Thank you.

  2. #2
    3000rpm max speed?
    I don't think much to that.
    You think that's too expensive? You're not a Model Engineer are you? :D

  3. #3
    max rpm limit is not an issue.
    i am using most of the time hss endmills and u have a time :)

  4. #4
    m_c's Avatar
    Lives in East Lothian, United Kingdom. Last Activity: 9 Hours Ago Has been a member for 9-10 years. Has a total post count of 2,148. Received thanks 236 times, giving thanks to others 5 times.
    3000RPM is poor for the size of bearings used, but then it is using a rubbish bearing setup, which isn't likely to handle high loads for very long.
    Avoiding the rubbish customer service from AluminiumWarehouse since July '13.

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