Manufacturing Constraint dialog box

Modeling Object
Name	Sets a unique name for the manufacturing constraint modeling object.
Label	Sets a unique integer for the modeling object.This label also appears in the Modeling Objects Manager dialog box, and you can filter the objects listed on that dialog box by their label.
Properties
Description	Sets a description for the modeling object.You can optionally click Description to open the Description dialog box. This lets you see more of the text that you type, as well as cut, copy, or paste text.This description appears only on this dialog box.
Card Name	Displays the name of the Simcenter Nastran bulk data entry associated with this modeling object: DMNCON.
Constraint Type	Specifies the type of manufacturing constraint.For information about each constraint type, see Manufacturing constraints in topology optimization.
Point on Symmetry Plane	Appears when Constraint Type is set to Planar Symmetry (SYMP) or Cyclic Symmetry (SYMC).Lets you specify a point on the plane that will bisect the model (for planar symmetry) or a point at the center of the plane of rotation (for cyclic symmetry).To specify a point, click Point Dialog or select the point creation method from the list and then take the appropriate action in the graphics window.
Vector Normal to Plane	Appears when Constraint Type is set to Planar Symmetry (SYMP).Specify Vector Lets you specify the vector normal to the symmetry plane.To specify the vector, select the appropriate axis in the displayed triad. You can also click Vector Dialog or select the vector creation method from the list and then take the appropriate action in the graphics window.To reverse the direction of the vector, click Reverse Direction .Note: The mesh does not have to be identical on both sides of the plane, but if there are differences, the vector direction might affect the optimization results. You might want to solve the model twice (each time using a different vector direction) to see which recommended design best meets your needs.
Vector Normal to Plane of Rotation	Appears when Constraint Type is set to Cyclic Symmetry (SYMC).Specify Vector Lets you specify the axis of rotation (that is, perpendicular to the plane of rotation).
Vector Along Edge of Sector	Appears when Constraint Type is set to Cyclic Symmetry (SYMC).Specify Vector Lets you specify a radial vector perpendicular to the axis of rotation.The direction of the radial vector should point away from the axis of rotation.(1) Point on symmetry plane; (2) Vector normal to plane of rotation; (3) Vector along edge of sector
Number of Sectors	Appears when Constraint Type is set to Cyclic Symmetry (SYMC).Sets the number of sections in the circle.If the value is positive, the symmetry is repeated (that is, each sector is similar to every other sector). If it is negative, the symmetry is reflected (that is, every other sector is the mirror image of the previous sector).This value must be between -360 and 360.
Maximum Member Size	Appears when Constraint Type is set to Maximum Member Size (MAXS).Sets the maximum thickness for the trusses.This value should not be smaller than twice the length of the average element edge. Otherwise, the optimization process might create elements connected by only one or two nodes.
Minimum Member Size	Appears when Constraint Type is set to Minimum Member Size (MINS).Sets the minimum thickness of the trusses.This value should not be smaller than twice the length of the average element edge.
Point on Casting Plane	Appears when Constraint Type is set to Casting Die Direction (CDID).Lets you specify a point on the plane where the two halves of the mold separate (that is, the parting line) or where the part is removed from the mold.
Vector Normal to Casting Plane	Appears when Constraint Type is set to Casting Die Direction (CDID).Specify Vector Lets you specify the axis perpendicular to the plane where the two halves of the mold separate or where the part is removed from the mold.
Die Removal Direction Vector	Appears when Constraint Type is set to Casting Die Direction (CDID).Specify Vector Lets you specify the direction in which the mold is separated from the part.If the part has an undercut, this vector might be at an angle from the casting plane. Use Second Casting DirectionIncludes another vector in the optimization process when the part is manufactured by separating two halves of a mold.
Second Die Removal Direction Vector	Appears when Constraint Type is set to Casting Die Direction (CDID) and the Use Second Casting Direction check box is selected.Specify Vector Lets you specify the direction in which the second half of the mold is separated from the part.(1) Point on casting plane; (2) Vector normal to casting plane; (3) Die removal direction vector; (4) Second die removal direction vector
Specify Vector	Appears when Constraint Type is set to Extrusion (EXTC).Lets you specify the extrusion direction.
Checker Board Radius	Appears when Constraint Type is set to Checker Boarding Control (CHBC).Sets a value that controls the checker boarding behavior of Simcenter Nastran.Note: The actual value of the checker board radius is not currently used. It simply indicates to Simcenter Nastran whether or not to use the checker boarding control.If you type a positive value or omit a value, Simcenter Nastran automatically averages the material density values of adjacent elements, which prevents the removal of elements in an alternating pattern similar to a checker board.To allow checker boarding to occur, type a negative value.
Point on Plane for Base Plate	Appears when Constraint Type is set to Additive Manufacturing Overhang Angle (ADDM).Lets you specify a point on the plane that represents the base plate where the first layer is built.
Base Plate Normal Vector	Appears when Constraint Type is set to Additive Manufacturing Overhang Angle (ADDM).Specify Vector Lets you specify the vector normal to the base plate plane.
Maximum Angle for Overhang	Appears when Constraint Type is set to Additive Manufacturing Overhang Angle (ADDM).Sets the maximum size of the angle between the base plate and the normal vectorAny trusses, protrusions, or slopes created by the optimization process must have angles equal to or less than the specified value.(1) Plane for base plate; (2) Base plate normal vector; (3) Maximum angle for overhangIf you omit the maximum overhang angle, you must specify a minimum allowed dimension.
Minimum Allowed Dimension	Appears when Constraint Type is set to Additive Manufacturing Overhang Angle (ADDM).Sets the minimum thickness for any portions of the body.If you omit the minimum allowed dimension, you must specify a maximum overhang angle.

How do I

Create a manufacturing constraint

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Manufacturing constraints in topology optimization

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Manufacturing Constraint dialog box, Simcenter 3D 2021.1 Series

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