Three-dimensional space
Fig. 17.8 Second example UCS – step 11 rendering
Fig. 17.9 Second example UCS – steps 12 and 13 rendering
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11. Turn layer 0 back on and move the top into its correct position relative to the main part of the valve. Then with the Mirror tool, mirror the top to produce the bottom of the assembly (Fig. 17.8). 12. While in the UCS X view construct the three parts of a 3D model of the extrusion to the main body. 13. In the UCS *WORLD* view, move the parts into their correct position relative to each other. Union the two filleted rectangular extrusions and the main body. Subtract the cylinder from the whole (Fig. 17.9). 14. In the UCS X view, construct one of the bolts as shown in Fig. 17.10, forming a solid of revolution from a pline. Then construct a head to the bolt and with Union add it to the screw. 15. With the Copy tool, copy the bolt 7 times to give 8 bolts. With Move, and working in the UCS *WORLD* and X views, move the bolts into their correct positions relative to the 3D model. 16. Add suitable lighting and attach materials to all parts of the assembly and render the model. 17. Place the model in the ViewCube/Isometric view. 18. Save the model to a suitable file name. 19. Finally move all the parts away from each other to form an exploded view of the assembly (Fig. 17.11).
Fig. 17.10 Second example UCS – pline for the bolt
Fig. 17.11 Second example UCS
Third example – UCS (Fig. 17.15) 1. 2. 3. 4.
Set UCSFOLLOW to 1. Place the drawing area in the UCS X view. Construct the outline (Fig 17.12) and extrude to a height of 120. Click the 3 Point tool icon in the View/Coordinates panel (Fig. 17.13):
Command: _ucs Current ucs name: *WORLD* Specify origin of UCS or [Face/NAmed/OBject/ Previous/View/World/X/Y/Z/ZAxis] <World>: _3 Specify new origin point <0,0,0>: pick point (Fig. 17.14) Specify point on positive portion of X-axis: pick point (Fig. 17.14) Specify point on positive-Y portion of the UCS XY plane <-142,200,0>: enter .xy right-click of pick new origin point (Fig. 17.14) (need Z): enter 1 right-click Regenerating model Command:
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