We are going to create a bathtub from scratch, with the necessary cross sections and
guides, by following these steps:
1. Create a rectangle of 2.2 x 1.2 units.
2. Create another rectangle of 1.8 x 0.9 units with a fillet radius of 0.2 in all
corners and center its width with the first rectangle.
3. Copy both objects by 0.6 units in the Z direction.
4. The inner rectangle at the bottom is moved by 0.15 in the Z direction.
5. The rectangle that is selected last is scaled by 0.92 units to a point near the
right-hand edge.
6. Just to test, apply LOFT without guides. Then create and activate a layer
called BATHTUB with a different color.
7. If we want to undo the previous steps, apply the UNDO command (type UNDO
to access this command; do not confuse this with the U command) and select
the
Mark
option.
8. Applying the LOFT command, select, in this order: the bottom rectangle, top
rectangle, top-inner rectangle, and bottom-inner rectangle. Pressing the
Enter
key twice will get us an interesting object, but not what we want. Even trying
other loft shapes, the result is not famous.
9. Apply the UNDO command and select the
Back
option to cancel the
LOFT function.
10. With the current layer set to 0, draw four guides that will mold the loft.
Create a UCS that is vertically aligned at the middle of length and draw a
spline with the wanted section that intersects all four sections. Then mirror
once and rotate with copy to obtain all four splines. Adjust all vertices with
the adequate UCS.
11. Finally, activate the BATHTUB layer and apply the LOFT command; first select
the four cross sections in the same order, press the
Enter
key, and choose the
Guides
option, and then select each of the four splines. As we select each
spline, the lofted object adjusts accordingly. Then press the
Enter
key to exit
the command.
12. Save the model with the name A3D_04_04FINAL.DWG.