![SURFACES
• A three dimensional curved line Can be represented in an
analytical form With the pair of functions:
Y = f (x)
Z = g(x)
• Can then be represented by the Vector function:
P(u) = (x(u), y(u), z(u))
The parameter (u) is defined in The range from [0 to 1]](https://image.slidesharecdn.com/rpt-29-141031063413-conversion-gate01/85/rapit-prototyping-12-320.jpg)
![Parametric equations for surfaces are Formulated with
two parameters [ u and v], A coordinate position on a
surface are Then represented by the parametric vector
Function:
P(u,v)=(X(u,v),Y(u,v),Z(u,v)
In design applications, a surface is often defined by
interactively specifying a set of control points which
indicate the surface.](https://image.slidesharecdn.com/rpt-29-141031063413-conversion-gate01/85/rapit-prototyping-13-320.jpg)
rapit prototyping
- 1. RAPID PROTOTYPING AND TOOLING MODEL SLICING
- 4. THE PART IS DIVIDED INTO SLICES
- 6. REASONS FOR USING DIRECT SLICING •Reduced file Size (Over-faceted Models); •Greater Model Accuracy; •Reduced RP Machine Pre-processing Time; •Elimination Of Repair Routines DISADVANTAGES OF DIRECT SLICING •Supports Cannot Easily Be Added To Nested Sections. •Beam Compensation And Offsets Still Require Processing. •More Designer Knowledge Is Required
- 10. TOOL PATH GENERATION • To generate and control the tool direction and speed in part manufacturing • Two different approaches to generate the tool path • Normal surface and offset surface, approximation are always used to the offset surface
- 11. TOOL PATH ALGORITHM • The tool path generation algorithm is to efficient tool path to machine object surfaces, classified tool path generation into isoperimetric and non-isoperametric paths. the accuracy of the surface depends on the desired tolerance.
- 12. SURFACES • A three dimensional curved line Can be represented in an analytical form With the pair of functions: Y = f (x) Z = g(x) • Can then be represented by the Vector function: P(u) = (x(u), y(u), z(u)) The parameter (u) is defined in The range from [0 to 1]
- 13. Parametric equations for surfaces are Formulated with two parameters [ u and v], A coordinate position on a surface are Then represented by the parametric vector Function: P(u,v)=(X(u,v),Y(u,v),Z(u,v) In design applications, a surface is often defined by interactively specifying a set of control points which indicate the surface.
- 14. THANKING YOU