SCEXTRUDE

SCEXTRUDE extrudes 2D curves (polylines, circles, etc.) into 3D solids. The direction is the curve normal by default, so a curve in the XY plane is extruded up or down. You can preselect several curves at once; the command remembers the last distance and direction used.

Starting

Type SCEXTRUDE on the command line, or use the button in the ribbon on the SCAD Draw / View tab, Mesh / Solids panel.

How it works

1. Preselect one or more curves, or pick one when the command asks: Select curve to extrude:. Objects that are not curves are rejected (Entity must be a curve.).
2. The command asks First point or distance:. You have three ways to answer:
   • Type a distance: type a number. If you have extruded before, the previous direction is used with the new distance; otherwise the curve normal (or Z if the curve is not planar).
   • Enter: repeats the previous distance and direction (only after an earlier extrusion).
   • Click two points: click a first point, then the command asks Second point:. The distance between the points is the extrusion height.
3. If the distance between the two points has more than one component (dX, dY, dZ), the command shows Distance: with the values per axis and asks Use distance. Choose which distance to use (see Options). The extrusion follows the curve normal.
4. A 3D solid is created for each selected curve in the current colour, and the command reports Extruded distance: .... The original curve stays in the drawing.

If the two points are identical, the command reports Points are identical. Cannot extrude. A distance of 0 or invalid input gives Invalid distance.

Options

At the Use distance prompt (only after picking two points):

Option	What it does
Real	Uses the full distance between the two points (default).
X	Uses only the difference in X.
Y	Uses only the difference in Y.
Z	Uses only the difference in Z.

Only the axes in which the points differ are offered. If the points differ in just one direction, nothing is asked.