Limit

• Seam

  • Name: Name of active seam

  • <List Box>: List of seams; click a seam name to activate it

  • Add…: Add a seam by indicating graphically

  • Replace...: Replace the active seam by another one indicated graphically

  • Remove: Remove active seam from list

  • Clear: Remove all seams from list

  • Move Up: Move active seam up in the list

  • Move Down: Move active seam down in the list

  • Developed plate limit: Limit number of the active seam in the idealised four-sided plate used in the development process.

• Excess

  • Type: Type of excess

  • <The fields to the right>: Excess values

  • For combination of excess and bevelgap, see below.

• Compensation and Grinding

  • Compensation: Compensation for the active seam.

    Compensation will extend the plate by a linearly increasing or decreasing value depending on the sign of the value. A positive value causes the extension to increase from zero at the start of the edge, to the given value at the end of the edge in the circulation direction of the plate. A negative value causes the extension to decrease from the given value at the start of the edge to zero at the end of the edge. An example is given below.

  • Grinding: Grinding for the active seam

Examples of compensation

The figures below show the effect on a top edge with the start point to the right.

Figure 2:5. Plate with positive compensation

Figure 2:6. Plate with negative compensation

• Bevel

  • Code: Bevel code. Click the button (…) to select from a list of available codes.

  • Variant: Bevel variant

  • E-Measure: Bevel e-measure

  • Use bevel defined in seam: Check this to use the bevel code defined in the active seam.

  • Custom: Specify a custom bevel with code, variant and e-measure.

  • Angle to Plate: Adjust bevelling by the given angle between this plate and a neighbouring one, sharing the active seam.

  • Plate Name: Name of a neighbouring plate used for adjustment of the bevelling. Click the button (...) to indicate the plate graphically. When the plate is created, the angle to the second plate will be calculated.

  • Bevel Code: Resulting bevel

If both bevel and excess has been defined along a certain edge of the plate then normally the bevel and bevel gap will be disregarded.

By setting the environment variable SBH_BEVELGAP_AT_EXC = <r> both bevel gap and excess will be accepted, provided the excess <=<r>.

Note: The Drafting default value HATCH_SCL_MODE should be set to 0 (zero) to make a sensible hatching.