Engineering Drawing
This type of rapid prototyping system uses a laser to fuse powdered metals, plastics, or ceramics:

Stereo lithography apparatus
Fused deposition modeling
Solid ground curing
Selective laser sintering

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Engineering Drawing
When using the direct entry method to create a horizontal line exactly three inches long the drafter should ________ first.

Insure that Ortho is on
Read the coordinate position on the Dynamic Readout
Pull the line from away from the starting point very carefully
Enter 3 for the length of the line

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