Craft ruler with laser guide
作者： Javier Verdura , Amy Campagna , Michael E. Peterson , Evin G. Prather , Man For (Cody) Ma
DOI:
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摘要: A craft ruler employs a laser module which is longitudinally positionable along the ruler. emits beam defines crafting guideline on an adjacent surface. The angular position of may also be adjusted relative to straight edge In addition, more than one ganged together form orthogonal lines or grid.
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