Create a Spiral

Discussion in 'AutoCAD' started by trvlnmny, Jan 8, 2009.

  1. trvlnmny

    trvlnmny Guest

    I would like to draw a spiral. The inner 'circle' should be about 3"
    in diameter. Each ring should be offset from the inner ring by 1/4".
    The outer diameter should be 6".
    I am new to AC and would like to have the commands to do this so I
    learn from it. If you send me the drawing I am not learning anything.
    I realize that these are not circles and my use of the word diameter
    is incorrect but I did not what word to use.
    Thanks for any and all help.
     
    trvlnmny, Jan 8, 2009
    #1
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  2. trvlnmny

    strawberry Guest

    helix 0,0 3 6 t 12 0
     
    strawberry, Jan 9, 2009
    #2
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  3. trvlnmny

    strawberry Guest

    helix 0,0 1.5 3 t 6 0
     
    strawberry, Jan 9, 2009
    #3
  4. trvlnmny

    trvlnmny Guest

    Thank you for the replies.
    I am using AC LT and I guess Helix is not a command in the LT version.
     
    trvlnmny, Jan 9, 2009
    #4
  5. trvlnmny

    strawberry Guest

    Helix is not available in LT. Neither is lisp (unless you add LT
    Toolkit). So, looks like you're a bit stuck. If you only need this one
    spiral, let me know and I'll email you a file.
     
    strawberry, Jan 9, 2009
    #5
  6. trvlnmny

    trvlnmny Guest

    Thanks again for the help.
    I do have some spirals as jpg files that I can increase and decrease
    in size as needed.
    I am trying to teach myselc AC LT and thought that I could makemy own
    spirals.
    I use them as patterns for scrollsawing.
    I print the spiral and paste it to a piece of wood.
    Using the scrollsaw with the table tipped at a small angle I then make
    a continous line along the spiral.
    Now I have a wooden spiral.
    Because of the angle when I push the outer rings up they only go so
    far.
    I then glue the rings together in the pushed up position and I makes a
    small snack or candy dish.

    Once again thanks for your help.
     
    trvlnmny, Jan 10, 2009
    #6
  7. trvlnmny

    NstrumentsGuy

    Joined:
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    Hi strawberry - I am a new registree because I saw that you've offered to make trvlnmny a spiral. I have an urgent need to create a CAD spiral for adapting my miniature drill-stand from Proxxon to advance my workpiece more accurately into my cutting tool, can you set up a simple dwg file with a 4" wheel that runs its 9/32"spiral cam inward from radius (at center of slot) 1.800" as the wheel turns clockwise to finish 900 degrees of the spiral at 0.700"? My manufacturing engineer can take it from there. Since he's volunteered this job I don't want to take up a learning curve to put this together for me, but maybe you'll be motivated for me! Thanks!
     
    NstrumentsGuy, Jan 8, 2013
    #7
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