DXF import

QuickField can import 2D model geometry or its fragments from DXF files produced by most CAD systems. For details about the DXF import procedure, supported geometry, model units, and import tolerance, see Importing Models from CAD Systems.

CAD drawings may contain small geometric inaccuracies that are insignificant for drafting but can affect a finite-element model.

• Lines that should meet at a common node may cross or have slightly different endpoint coordinates. This may create unnecessary vertices and excessive local mesh refinement.
  
• Points that visually lie on the symmetry axis may actually have small coordinate offsets. In an axisymmetric QuickField model, a point slightly below the axis may cause the error R-coordinate cannot have negative value.
  

Therefore, it is recommended to inspect the geometry after DXF import and correct any remaining problems before generating the finite-element mesh.

• See examples of DXF file import:
  Cylindrical magnetic device (actuator)
  Heat losses through windows
  ISO 10211:2007 Thermal bridges in building construction. Test case A.2 validation
  Heating and cooling of a slot of an electric machine
  High voltage three phase cable ampacity
  MEMS stress sensor
  MEMS thermal actuator
  Tokamak solenoid
  Free tool: correct the model after DXF import.

^*We do not guarantee that articles in the section "Glossary" are full and exact or that they may be used as a reference of any kind. In fact - they are not! These are just informal hints, letting the students and amateurs better understand what the specific term is about. Experts should not read it at all! However, we will appreciate all expert recommendations about improving and extending our glossary.