ENGR-1020 INTRODUCTION TO ENGINEERING AND TECHNOLOGY

Picoturbine Construction Notes

1. Read the kit instruction booklet PDF version and consider the following construction notes

2.Place additional tape around the coils to minimize the thickness (height) between coils and determine the average inner coil area in sq-meters.

3.The kit-supplied wooden shaft is often not sharpened to a point uniformly. Use a pencil sharpener to produce a centered point at one end of the wooden shaft.

4. Straighten the kit-supplied wirer and create a loop for the wooden shaft in the center (work from the center). Bend the wire to support the shaft and insure that at least one inch is exposed above the wire frame.

5.Position the magnets with alternation polarity on the extra thick cardboard (supplied by the instructor)

6.Sand the enamel off the end of the wires and connect the coils in alternating directions. Do not cut the wires too short (leave one and half inches).

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7.Notice the direction the wires leave the original black tape. This will aid you in alternating the connections of the coils. The additional tape could mask the the wire entry and exit points.

8.If we make a mistake in connecting the coils the induced voltages will cancel out. Passing a current through the coils and using a small magnetic compass will help you troubleshoot the coil orientation. The compass north needle will alternate directions if wired correctly.

9. Minimize (approximately 1/8 inch) the distance between the coils and the moving magnets without producing any contact when the shaft is spun. This is not easy with the kit-supplied clips and hot glue attachment of the shaft should be considered.

Tools and additional Material:

1. #2 Philips head screw driver

2.Scissor

3.Tape

4.Glue stick

5.Straight edge

6.Utility knife