Ideas for fool-proofing an activity in order to prevent a previously detected defect from recurring often involve a new work standard.
A technique called fool-proofing guarantees that components are loaded properly. This idea guarantees that the component will only fit into the work holder when it is in the proper position. The placement devices make it challenging or impossible for the operator to mistakenly load a component into a fixture or jig. Fixtures should only accept the workpiece in one position to ensure precise machining.
By including some design elements that do not obstruct component loading and unloading, fool-proofing is accomplished. To do it, blocks and fool-proof pins are used.
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