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Before you express your indignation at me that I posted your pattern, file an industrial patent for your pattern. Almost all patterns have a commonly used solution or are shamelessly copied from normal manufacturers.

Free pattern Large backpack from Workshop Crane.

Folded size: 300x440x160 mm and 300x440x135 mm.

Number of patterns: 17 pcs and 24.

Marking for the punch with a step of 6 mm (+\- 0.15).

Calculations for bends were made for skin with a thickness of 2.2-2.4 mm.


narrow backpack run in 002

narrow backpack run in 003 thumbs

narrow backpack run in 004


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