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Dude Makes His TI-89 Graphing Calculator ‘Tonka-Tough’ With Custom Milled Aluminum Housing

Aluminum TI-89 Graphing Calculator (Image courtesy Hack a Day)
By Andrew Liszewski

What do you do when you drop your expensive graphing calculator on the floor, irreparably damaging the outer housing? Well since it’s not made of recycled paper like a certain alarm clock, you can either buy a new one or salvage and install the innards in a replacement housing made from custom milled aluminum. That’s exactly what University of Iowa industrial engineering student ‘Howard C.’ did, which cost him $50. And even though the calculator’s new housing might be a bit bulkier and heavier than the original, rest assured the next time it’s knocked to the floor the only think breaking will be Howard’s toes.

[ Hack a Day – Indestructible TI-89 ]

  • Tekunoloji

    What's the point though? Graphic calculators are already built to withstand 20 lb textbooks…