The quality of the individual parts are also inspected just after exiting the mold. Since thousands of parts are made daily, a complete inspection would be difficult. Consequently, line inspectors may randomly check the plastic parts at fixed time intervals and check to ensure they meet size, shape, and consistency specifications. This sampling method provides a good indication of the quality of the overall Rubik's cube production run. Things that are looked for include deformed parts, improperly fitted parts and inappropriate labeling. While visual inspection is the primary test method employed, more rigorous measurements may also be performed. Measuring equipment is used to check the length, width, and thickness of each part. Typically, devices such as a vernier caliper, a micrometer, or a microscope are used. Just prior to putting a cube in the packaging it may be twisted to ensure that it holds together and is in proper working order. This can be done by hand or by a turning machine. If a toy is found to be defective it is placed aside to be reworked later.
If you were around in the 1980’s and did not live under a rock, you had a Rubik’s cube.  It was the 3D combination puzzle that had children and adults mesmerized trying to solve the impossible puzzle.  We would spend hours twisting and turning the cube to figure the solution. The cube was invented by an Hungarian professor of architecture, Erno Rubik, in 1974.  Although it took Erno over one month to solve his very own puzzle, it  became a fad and everyone had one. Consequently, it became the world’s best selling toy ever at that time. Rubiks Build It Solve It Instructions
If there are no more edges left on the top layer, then they are probably either inserted in the right place but flipped, or inserted in the wrong place. To get an edge out of somewhere it shouldn't be, just insert one of the yellow edges into that slot. This should get the edge out and on the top layer, ready for you to use the above instructions to insert correctly. Rubix Build
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