Mackinac Bridge Turns 60!

Whats 5 miles long, 500 feet tall and turns 60 today?  The Mighty Mac!  The Mackinac Bridge opened to traffic on November 1, 1957.opens a new window  We've been testing our newest 3D printer by printing mini versions of the bridge, using a design createdopens a new window by Thingiverse user Brad Nichollsopens a new window.  Great design Brad!

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