Technical Illustration - CorelDRAW verses CAD

TDT - Productivity solutions for tech illustrators.

	Those of you familiar with these tutorials know that CorelDRAW’s extrude function can be made to work like a 3D CAD extrude. Choose the larger object. (TDT and IT users choose the Top Extrude from the Isometric Menu and enter 0.265 inches.) and fill with white. The depth of this object is 0.265 inches. Use the Extrude tool with the following settings: Back Parallel, VP Locked to Object, Object center, Horizontal 0.0, Vertical –0.265. There are some extra lines that need to be smoothed using the Node Edit Tool and Roll-up. Choose the control curve and smooth the offending nodes.
	Choose the middle object . (TDT and IT users choose the Top Extrude from the Isometric Menu and enter 0.154 inches.) and fill with white. The height of this object is 0.154 inches. Use the Extrude tool with the following settings: Back Parallel, VP Locked to Object, Object center, Horizontal 0.0, Vertical -0.154. The position must be fixed. Simply add 0.154 inches to the "y" position (Mine says –0.077 to which I add the +0.154 thickness to come up with +0.077 vertical "y" move) on the Property Bar and click on the page.
	Before you can render, you must separate and ungroup both extrusions. Once you have done that, apply a solid fill of C=4, M=1, Y=0, K=5 to both top surfaces. The outside of the large cylinder is now in three pieces. To render it properly you must combine it. Shift click select the objects and combine (Ctrl+L). Apply a custom linear fill with the following settings: Position 0; C=8, M=2, Y=0, K=70, Position 65; C=0, M=0, Y=0, K=0, Position 100; C=8, M=2, Y=0, K=50. Select the outside of the inside cylinder and repeat (Ctrl+R). Apply the following to the inner surfaces, the cutouts, and all of the holes (16 objects): Custom linear fill, Position 0; C=8, M=2, Y=0, K=50, Position 35; C=0, M=0, Y=0, K=0, Position 100; C=8, M=2, Y=0, K=70.

Next months tutorial will continue the CAD like instructions. However, at this point you may be asking if this level of accuracy is necessary. If you haven’t looked under the Tip’s and Tricks section of this site yet you might explore the Converting paper Engineering Drawings to…

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