Thread: Axis Directions

  1. #1
    I am getting a little confused as to the correct directions the table on my mill should move. If I figure correct on the x axis when inputing x+ the table should go to the left ie the work goes x+ and the same for the Y axis and the z axis will raise the head(more clearance to the work).
    I am assuming that for a gantry mill or router x and y are reversed in the the work is stationary and the table moves. The z axis shoul be the same in both cases.

    Or have I got it all wrong.

    Peter

  2. #2
    John S's Avatar
    Lives in Nottingham, England, United Kingdom. Last Activity: 14 Hours Ago Has been a member for 9-10 years. Has a total post count of 2,072. Received thanks 140 times, giving thanks to others 45 times. Referred 1 members to the community.
    Peter,
    See here.

    http://books.google.co.uk/books?id=J...age&q=&f=false

    Page 7

    if you can get this book, do so, it's the best book ever written on the subject and is rapidly becoming the bible.

    .
    John S -

  3. #3
    Kn8's Avatar
    Location unknown. Last Activity: 10-11-2014 Has been a member for 7-8 years. Has a total post count of 58. Received thanks 1 times, giving thanks to others 0 times.
    Hi Peter,

    Have a look at

    http://www.cncci.com/pdf/notes%20page%20example.pdf

    John, very interesting book.

    Ivan.
    Last edited by Kn8; 06-09-2009 at 01:40 PM. Reason: Spelling correction.

  4. #4
    John S's Avatar
    Lives in Nottingham, England, United Kingdom. Last Activity: 14 Hours Ago Has been a member for 9-10 years. Has a total post count of 2,072. Received thanks 140 times, giving thanks to others 45 times. Referred 1 members to the community.
    There is something called a right hand rule where you stick two fingers and a thumb in the air and each way points plus.

    http://www.utm.edu/departments/engin...cture%2025.pdf

    Page 3

    Only problem is I can't get my fingers to point this way.:sad:
    John S -

  5. #5
    Good question peter and one i have asked before, Nice one for the links guys, i'v just made this a sticky.
    .Me

  6. #6
    Hi just found this on fleabay for a Boxford mill

    Shows the directions table and head should move in(I think)

    Peter
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	vmc3.jpg 
Views:	620 
Size:	75.6 KB 
ID:	845  

  7. #7
    John S's Avatar
    Lives in Nottingham, England, United Kingdom. Last Activity: 14 Hours Ago Has been a member for 9-10 years. Has a total post count of 2,072. Received thanks 140 times, giving thanks to others 45 times. Referred 1 members to the community.
    Only problem is Denfords started off wrong, they decided that their way was best and because this was based in education Boxfords had to follow or be odd man out and it's a case of it's stuck.

    Industry uses X and Y opposite to this and all industrial text books CAM programs etc all work this was.
    John S -

  8. #8
    Not sure I understand why industry is going to be different.
    If I want to machine a part from an industry standard drawing in which the origin is bottom left at 0,0 then I want to machine 0,0 to 1,0 then on my mill the table will move to the left as the head cannot move as on a gantry, so to my mind denford is correct.

    Peter

  9. #9
    John S's Avatar
    Lives in Nottingham, England, United Kingdom. Last Activity: 14 Hours Ago Has been a member for 9-10 years. Has a total post count of 2,072. Received thanks 140 times, giving thanks to others 45 times. Referred 1 members to the community.
    Never equate bed movement with direction.
    It's always tool movement.

    This way all axis move the same.
    Denford's way means the bed moves in X and Y but the head [ tool ] moves in Z
    John S -

Similar Threads

  1. 6082 aluminium milling directions
    By dudz in forum Metal Finishing Techniques
    Replies: 2
    Last Post: 16-02-2014, 09:42 AM
  2. Replies: 12
    Last Post: 24-05-2013, 11:41 PM
  3. NEW MEMBER: Goal - Enable 3-Axis CNC Bed Mill to Perform 5-Axis Milling
    By LoveLearn in forum New Member Introductions
    Replies: 2
    Last Post: 25-01-2012, 07:46 PM
  4. Y axis is making X axis stall...!!
    By fasteddy in forum Machine Discussion
    Replies: 83
    Last Post: 24-10-2011, 11:19 AM
  5. Precision metal processing (3 axis, 5 axis, 7 axis) OEM
    By 7AxisCNC in forum Manufacturer News
    Replies: 0
    Last Post: 17-05-2011, 01:04 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •