How is the Min Escape Hole defined?

Discussion in 'Design and Modeling' started by PointHappy, Aug 7, 2013.

  1. PointHappy
    PointHappy New Member
    For Sand Stone, the property spec is Min Escape Hole: One hole: 25mm, Two holes: 15mm, Four holes: 10mm.

    Does 25mm mean: 25mm on a side, 25mm diameter hole, 25mm radius hole, or 25 sq mm hole.

  2. AmLachDesigns
    AmLachDesigns Well-Known Member
    I would say diameter.

    It is definitely not sq. mm as the dimension is mm.
    Normally a hole is round: if it is a polygon I believe that would have been specified.
    When we give dimensions for a hole we do not use radii but diameters - think drill bits (which create holes). The diameter is something which can be directly measured, a radius must be calculated in the real world.
  3. PointHappy
    PointHappy New Member

    Of course, the easiest hole to create in 3D would be a triangular hole or quadrilateral hole by just deleting a polygon.and adding walls.
  4. AmLachDesigns
    AmLachDesigns Well-Known Member
    That's true, but it would not make a very good looking aperture imo.

    But if you wish to go that route, I would try for a similar area of hole as any of the specified combinations (although confusingly they don't add up to the same area).