1. I have been using my mini-mill with the excellent 2010 screen-set for a while now, done some nice jobs too. I also have a Bridgeport which is going to be CNC converted as a project soon.

    Trying to figure options for Z zero setting - on the mini-mill the semi-auto-manual tool change macros work wonders but I cannot use that on the bigger machine due to the flexible nature of a Bridgeport, there is nowhere to fix the fixed height sense plate.

    Am I right my only option here is to use the floating probe plate for every tool change?

    The tools are held in R8 collets so pre-set tool offsets are out, just as the mini-mill is.

  2. #2
    Is it not possible to just use one corner of the bed for touch off second plate an isultated plate that bolted on end of a T slot on one corner would do same job as one used on mini mill

  3. Ah, but you have not used a Bridgeport ;)

    The head is mounted on a swivelling, ram that can (and does) move in any position - the chances of the macro finding the fixed plate are practically zero after the head has been moved ;)

  4. #4
    Offsets ;-)
    If you will not be swayed by logic or experience simply pick the idea you
    like best, but ask yourself why you sought advice in the first place and,
    for a simple life, perhaps consider not doing so in future

  5. Yes but how?

    There is no toolholder as such - just a collet.
    The Knee height (i'll call it Z2) is adjustable 300mm.
    Only the quill- Z1 Is homed and controlled.

    Seems too many variables for a simple offset, unless I am not seeing the whole picture yet;)

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