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Decorative Clock Partially Manufactured with 3D Printing

Decorative Clock Partially Manufactured with 3D Printing. Final Individual Project DESN204 MiraCosta College Fall 2013 Stephen Gallant. The Clock. The Clock Inside. Project Summary. A decorative clock is manufactured using, metal, plastic, and electronics. Metal

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Decorative Clock Partially Manufactured with 3D Printing

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  1. Decorative Clock Partially Manufactured with 3D Printing Final Individual Project DESN204 MiraCosta College Fall 2013 Stephen Gallant

  2. The Clock

  3. The Clock Inside

  4. Project Summary • A decorative clock is manufactured using, metal, plastic, and electronics. • Metal • Hand crafted sheet metal with weathering techniques. Off the shelf fasteners, machined rods, and bearings. • Plastic • Gears and gear case designed using Solidworks, and 3D printed in Dimension printer. • Electronics • Circuit designed using Altium, Atmel microcontroller programmed in C using Atmel Studio. Off the shelf motor driver, and stepper motor..

  5. Details • Minute Hand • With the microcontroller pulsing at 3 1/3 step/s, the motor step/rot of 200, and the gear gains of 10/50, 10/40, and 10/30 we have, (3 1/3 step/s)(60 s/min)(1/200 rot/step)(10/50)(10/40)(10/30) = 1/60 rot/min . Thus, for one motor rot/min we have 1/60 rot/min for the minute hand.

  6. Details Continued • Hour Hand • With the microcontroller pulsing at 3 1/3 step/s, the motor step/rot of 200, and the gear gains of 10/50, 10/40, 10/30, and 10/120 we have, (3 1/3 step/s)(60 s/min)(1/200 rot/step) (10/50)(10/40)(10/30) )(10/120) = 1/720 rot/min . Thus, for one motor rot/min we have 1/720 rot/min for the hour hand. Or (1 rot/min)(60 min/hr) is 60 motor rotations in an hour giving (1/720 rot/min)(60 min/hr) = 1/12 rot/hr for the hour hand.

  7. Gear Case and Hands

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