A report can be generated when running a Simulation to show the Contributors that affect the model at measuring location. This output summarizes all the tolerances associated with the model and their affect to each measurements in terms of percentage. The analysis is based on the principle where each tolerance is varied to its different levels, one at a time, while holding all other tolerances at their nominal values.  A detailed description of each of the output parameters in the report is outlined below.The  Contributors Analysis calculation takes into account the distribution type for tolerances and for hole-pin float.

The Contributors can be show in the list by Tolerance or by their Feature.

Per Tolerance: If a tolerance has more than one feature used, Per Tolerance will combine all Features into one Contributor and calculates the RSS (Root Sum Square) results of all contributors in the list.

Per Feature: Will display all features used in the GD&T separately. Each feature will have a GeoFactor and 6-Sigma value.

See Also

High-Low-Median Contributor Analysis Analysis and Synthesis

Calculation Schematic

➢Holds all input variations at nominal and then deviates one contributor at a time to determine measured effects.

➢For each contributor, the two states that effect the measurement minimally and maximally are extracted from the set.

➢Once each individual contribution is known, a total amount of variation can be calculated for the measurement.

➢At last, when the total is known, the individual contributions are compared proportionally to the total variation in order to calculate the contribution percentage on the measurement for each contributor.

Table view

Histogram View

Feature Names

Description

SzFrm_CadSurf

Size GD&T contributor on feature

CadSurf1(SizeTol)

Circle Size tolerance from coordinate point.

CadSurf1(Bonus=+0.01)

Displays the bonus from tolerances with applied to the tolerance frame.

CadSurf1(Form)(Orientation)(Location)

Auto Refine: With Auto Refine active in the GD&T options dialog, the Form, Location and Orientation can be shown in the Contributor Features list, after the surface name.

CadSurf1_HlmPt3_1

Form tolerance on a surface: displays the point node or Point name, and index in Contributor feature (HlmPt3 = Point Node; 1 = Index)

CadSurf1_OrientPlane_9_5

Orientation on a rectangular plane: display the node out of 9 nodes; used to measure the orientation on a plane. (ref. 71327)

Pattern_Move_RT_A

Pattern Move contributors shows the Translation (TR), with the direction (X,Y,Z), and Rotations (RT), shows the deviation type (A = Angle deviation)

DRF_SEC

When  is applied to the Datum Reference Frame, 3DCS will show the simulated gauge as Primary (PRIM), Secondary (SEC), and Tertiary (TERT) locating features.

PtPair_1_1_1

Shown when points are used in GD&T: Straightness, Flatness, Circularity, Cylindricity, or Profile to No DRF, or Runout on a cone.

PtPair: is the HLM index, a grouped set of points; "_1_1_1" is the point names.

Plane example referenced in 3DCS: 3DCS will apply this grid of numbers on a planar feature.

GD&T Example: Showing the applied orientation tolerance.

Deviation/Visualize Effect: When shown through Visualize Effect, the node is shown where the deviation will occur from. For example: around Node 5.