apple explains why some lte ipad pros might come bent

Tidur, Iina, Focos, and other unpronounceable apps of the week...   Photo Charlie Sorrel Cult of Mac A recent support document from Apple describes manufacturing process that's apparently the cause of complaints that 2018 iPad Pro units sometimes arrive new from the store already slightly bent..   iPad Pro unibody enclosure design seems to be intended to address complaints about the the straightness of this device..   Much of the document talks about how the cellular wireless antennas are added.   To provide performance,  small vertical bands or splits in the sides of iPad allow parts of the enclosure to function as cellular antennas.   For the time ever on iPad, these bands are manufactured using process called co-molding. In this high-temperature process, plastic is injected into milled channels in the enclosure where it bonds to micro-pores in the aluminum surface...   Without saying so, Apple implies this high-temperature process sometimes causes iPad's unibody casing to bend.   This is clear because the very next step after adding the antennas is inspection to be sure the device still meets Apple's flatness requirement. .   This flatness specification allows for no more than 400 microns of deviation across the length of any side  — than the thickness of four sheets of paper, the company says.   The company has answer to those who say their new iPad is too bent return it.   Read more