014 Fork Modeling

In this tutorial, a simple fork is modeled using the modules generative surface design and part design in Catia. The fork is shown in the following image:

The fork modeling is done through following these ten steps:

1. In the generative surface design the side profile is sketched using the spline tool.
2. Surface is extruded using the surface extrusion tool.
3. Cutting surface is modeled through another profile perpendicular to the first profile.
4. The cutting surface is mirrored to the opposite side of the fork.
5. The two cutting surfaces are used to cut the first extruded surface.
6. The two cutting surfaces are hidden to continue modeling.
7. The fork gaps are created through drawing a section that gets extruded then used as a cutting surface to the fork.
8. The fork surface is extruded using the pad tool in the part design module.
9. The fork edges are filleted using the fillet feature in the pard design module.
10. Further modifications are done according to your design shaping desire.. enjoy !!

The following two videos show the modeling of the fork:

013 Gear Modeling

In this video tutorial, a simple Gear is modeled using Part Design Module in Catia. Here is the image of the final Gear.

The following video explains how to model a simple gear in 4 steps:

1. The inner and outer races are sketched then extruded using the Pad command.
2. The four edges are round filleted using the edge fillet command.
3. The tooth profile is sketched and using the pocket command, it is negatively extruded.
4. The profile is repeated around the whole peripheral of the gear using the circular pattern command.

012 Cap Surface Modeling - Part #3

In this tutorial, the Cap that had been started in the first tutorial and the second tutorial is finalized using Generative surface design. Finalizing of the cap is about giving it a final color through multiple selections of the cap surfaces and then applying the preferred color.

Here is the video that shows the finalizing operations of the Cap:

011 Cap Surface Modeling - Part #2

In this tutorial, the visor of the cap that was started in the first tutorial is created and the whole cap is finalized. The visor of the cap is also modeled using Generative surface design module in Catia.

The Visor is modeled in ten steps:

1. The profile of the visor is sketched and the visor surface is extruded using the extrude command.
2. The Visor surface is split into two pieces using the split tool.
3. The remainder of the visor surface is again split into two surfaces removing the one in the bowl.
4. This part is mirrored and the fill surfaces (at the visor side) are joined to create one surface.
5. The visor is used to cut this one surface removing the part below the visor.
6. A 3D round corner is applied at the sharp corner of the visor.
7. A split surface is created through extrusion from the 3D corner and the visor is split once more.
8. A line is drawn through the visor at the bowl side and a split surface is created to remove the outer part.
9. Boundary curves are created to define the skeleton structure of the Fill surface operation.
10. Fill Surface is created and mirrored.

Here is the video that shows in full details how to create the visor:

010 Cap Surface Modelling - Part #1

In this tutorial, a cap is modeled using Generative surface module in Catia. Its design is simple and divided into two parts the bowl and the visor. The bowl is modeled in this tutorial, while the visor is modeled in another tutorial. The bowl is modeled using Generative Surface Design.

The Bowl is modeled in three steps:

1. A circular surface is created using the fill surface command.
2. Another Perpendicular surface is created and trimmed to create half circle.
3. The half circle is rotated several times using the rotate command while keeping the original half circle. This creates the skeleton of the bowl upon which the surfaces will be built using the fill surface command.

Here is the video that shows the modeling of the bowl part of the cap: