You can define a coordinate system for a part. Use this coordinate system with the Surface and Solid modeling tools. Click View, RefGeom, Ref Coordinate System to toggle the display of reference coordinate systems.
To create a coordinate system:
Click Coordinate(Reference Geometry toolbar) or click Geometry, Reference Geometry, Reference Coordinate System .
Parameters. Create a coordinate system through an origin point, a Z-axis and a X-axis parameters.
Origin/Dir. Create a coordinate system by selecting an origin point, a Z-axis line, and a X-axis line. Defaultly, you can select only an origin point and Z-axis line, the X-axis line will be calculated by Z-axis.
In Cur/Surf. Create a coordinate system by select a point on the selected curve or the selected surface. The selected point is firstly projected to the curve or surface. For the curve, the projected point will be treated as the origin, the tangent vector of the project position on the curve will be treated as the Z-direction. And the X-axis is choosen randomly. For the surface, the projected point will be treated as the origin, the X-axis and the Y-axis are the U and V tangent vectors of the project position on the surface.
a. Select the vertex from the helix, using In Cur/Surf method to create a local coordinate system. |
b. Use this coordinate system to create a circle |
c. Select the circle and the helix, use Surface, Sweep to create the spring surface. |
3 Points. Create a coordinate system by 3 points. You can choose type as XOY, YOZ, or ZOX.
Sample Cur. Create a series of coordinate systems in the selected curve.
Sample Surf. Create a series of coordinate systems in the selected surface.