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automatic axis calibration?

Discussion in 'CNC Mills/Routers' started by Jonny Norris, Aug 22, 2014.

  1. Jonny Norris

    Jonny Norris Veteran
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    Hi there..

    Sorry another noob question. currently im using 3 outputs on my bb (x,y,z) y is the split to two drivers to power the two opposing motors of the y axis. and currently only have one home switch on one side.

    Is there a way of using two home switches and utilizing the bb A axis output to mirror the Y output except when going home it will run into the switch independently? thus calibrating the axis back to square in the event of it drifting out.

    I haven't actually tested my home switches with mach 3 as yet.. do the switches also calibrate the axis, say the switch is activated at +0.2 will mach 3 zero the location?

    Cheers, look forward to your comments.

    Jon.
     
  2. Tweakie

    Tweakie OpenBuilds Team
    Staff Member Moderator Builder

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    Hi Jon,

    Yes - for Mach3 operation you need 2 home switches (one for each side of the gantry) then when configured in Mach it will automatically "square" the gantry when calling the homing operation.

    Tweakie.
     
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  3. GrayUK

    GrayUK Master
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    I didn't know that! :D
    There is so much I don't know!! :banghead:
     
  4. Tweakie

    Tweakie OpenBuilds Team
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    This is the big problem with life in genereal - the more we learn, we realise that there is more we don't know. :(

    Tweakie.
     
  5. Jonny Norris

    Jonny Norris Veteran
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    Thanks tweakie. That's brilliant,, my fears are no more. Ta
     

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