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How to create a perforated sheet metal

0 0 Intermediate
could be that you want to use rectangular patern. by creating one hole and copying it over the surface of the sheet. i actually never use sheet metal parts but here it goes.

Tutorial: How to create a helix along a 3D curve

0 0 Beginner
Look the video. Important moments: - The orientation of cross section - Twist profile angle must be more then 360 Angel: 360*15 = 5400, Where 15 - number of coils Result file: http://grabcad.com/library/tutorial-how-to-create-a-helix-along-a-3d-curve-1