Forty full-size replicas of machines crafted from Leonardo da Vinci’s own technical drawings will be on display from noon to 8 p.m. daily, beginning Jan. 2, at California University of Pennsylvania.Leonardo da Vinci: Machines in Motion continues through May 6 in the South Conference Wing of the new Convocation Center at Cal U. Doors are open seven days a week.The traveling exhibition invites interaction. Visitors can manipulate and activate most of the machines — the revolving crane, armored car, printing press, working robot and more.Machines in Motion has drawn record-breaking crowds to museums across the United States and around the world. This is its only scheduled appearance in western Pennsylvania.Admission to the exhibition at Cal U is free. The public is welcome to attend. Tickets are not required; doors are open from noon-8 p.m.,seven days a week, from Jan. 2 through May 6, 2012.Visitor parking is available in the Vulcan Garage, off Third Street near the campus entrance. Parking rates begin at $2 for the first hour.Visitors may ride the free campus shuttle to and from the Convocation Center. For information, including a slide show and video, visit www.calu.edu.