Solid of constant diameter

Discussion in '3D Design Requests' started by wingman_100, May 16, 2012.

  1. wingman_100
    wingman_100 New Member
    I'm a math teacher and would like a solid of constant diameter created. I don't know how to create 3-d models, but have made a 2-d model which needs to be spun around the red dotted line (see attached). The shape is made with an equilateral triangle and then arcs with a radius the same as the side lengths of the triangle. If anyone is willing to prepare this model so I can order several 3-d printings of this, that would be much appreciated. I would like the side lengths of the triangle to be 1 inch wide.

    Constant Width Triangle.JPG
     
    Last edited: May 16, 2012
  2. CADNinja
    CADNinja Well-Known Member
    .stl file is available
     

    Attached Files:

  3. pfeifferstylez
    pfeifferstylez New Member
    No offense, bro', but...

    NetFabb.png

    Isn't this one too fat ?
    Shouldn't it be 25,4 mm in all axis ?
     
  4. wingman_100
    wingman_100 New Member
    Thanks for your help. Would you accept another challenge to make a Reuleaux tetrahedron? Its made by the intersection of four spheres. If all four spheres could have radius 1 inch, that would be awesome. Thanks ahead of time for your contributions to my classroom! See the website below for details on this solid.


    http://en.wikipedia.org/wiki/Reuleaux_tetrahedron
     
  5. SGDesigns
    SGDesigns New Member
    Hi wingman_100, Try this. This is the Reuleaux tetrahedron.

    I made it using the 4 spheres with a 1" radius.

    Final size from corner to corner is 1" with a .5 radius.

     

    Attached Files:

    Last edited: May 17, 2012
  6. gibell
    gibell Well-Known Member
    Last edited: May 17, 2012
  7. CADNinja
    CADNinja Well-Known Member
    Good catch. Model has been updated and re-sent. Up too late i guess
     
  8. JACANT
    JACANT Well-Known Member
    Last edited: May 21, 2012
  9. JACANT
    JACANT Well-Known Member
     
    Last edited: May 21, 2012