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<a name = "hj-top"> </a><table class = "table1" id = "table11"><tr><td><table class = "DocHeader"><tr><td class = "DocHeader1" colspan = "2"><h1>Prevention of Undercuts in the Model</h1></td></tr><tr><td class = "DocHeader4" colspan = "2"/></tr><tr><td class = "DocHeader3" colspan = "2"><table class = "DocThemeIntro" id = "table12"><tr><td class = "Intro1"><p class = "header"><p class = "abstract">
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      Casting restrictions can be used to prevent undesired undercuts in optimized models.
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</p><hr class = "header"/></td></tr><tr><td class = "Intro2"><span class = "run-in">In this section:</span><br/><ul class = "ulthemes"><li><a title = "This section gives information how undercuts in optimized models can be prevented using design variable constraints." href = "tso-c-user-TopOpt-DesArea-Undercut.htm">About Prevention of Undercuts in the Model</a></li><li><a title = "You can define demold restrictions to ensure a demoldable surface." href = "tso-t-user-TopOpt-DesArea-DemCon.htm">Defining Demold Restrictions</a></li><li><a title = "Alternatively to the previous, there is an additional method to ensure that the obtained design is castable, by parameterizing the design variables." href = "tso-c-user-TopOpt-DesArea-ManuFilter.htm">Demold Constraints with Parameterization Filter</a></li><li><a title = "The stamping restriction means the following: If one element is removed from the structure, all elements positioned either behind or in front of the element (with respect to the pull direction) are removed too." href = "tso-c-user-TopOpt-DesArea-StaRes.htm">Defining a Stamping Restriction</a></li><li><a title = "The manufacturing constraints for tightness represent a possibility to prevent the remaining structure from having holes and breakouts in the defined restriction area." href = "tso-m-user-TopOpt-DesArea-TighCon-sb.htm">Tightness Restriction</a></li></ul></td></tr></table></td></tr></table>
  

  
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