| 摘要 |
The material holding fixture has a base, which is slidably engaged with a rotatable holding platform. There are a pair of levers attached at one end to a base end and at the opposite end to a holding platform pivot position intermediate the ends of the holding platform. There is a back guide attached to the holding platform that is located to retain a material object in a position to engrave a surface. When the holding platform at a hinge end is moved relative to the base the holding platform opposite end is raised and lowered. The location of the levers maintains the holding platform opposite end and the base end in adjustment with an imaginary plane perpendicular to the base. This mechanism allows positioning of a surface of an object to be engraved perpendicular to a laser cutting device in instances where the object surface opposite is other than parallel to the surface to be engraved.
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