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Simple Motors Kit 5, Assembly Instructions Manual, Page: 10 / 10

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Simple Motors Kit 5 Assembly Instructions Manual Download Page 10

Assembly instructions for kit #5
All rights reserved. 2001 Simple Motors, LLC 

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www.simplemotor.com

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10

20. Follow these steps using the wiring diagram for Kit #5 below. You may trim the wires if

necessary.

o

Glue the transistor with branded side down to the board using a small drop of super

glue.

o

Solder the negative (black) wire of the battery holder and one of the reed switch

wires to the collector of the power transistor. You may twist the wires together

before soldering.

o

Solder the other reed switch wire to the base of the transistor.

o

Before soldering the electromagnet wires insert batteries into the battery holder.

Briefly connect one wire from the electromagnet to the positive (red) battery holder

wire and the other electromagnet wire to the emitter as shown below. If the

electromagnet doesn’t repel the permanent magnets away, switch the wires.

o

If the motor works, remove the batteries and solder the electromagnet wires.

o

You may tape the wires to the board using scotch tape.

21. You may connect a capacitor as shown in the diagram above. Do not forget to remove the

insulation from the magnet wire before soldering. It is not a required part for the motor to

work, but it may prolong the life of the reed switch. However using the ZNR as shown in

step 15 usually provides better results.

Start with 1.5 V. If the motor does not work, increase voltage to 3 V. If it still doesn't work, ensure

that the rotor can rotate freely and check all the connections – it is important to clean the

insulation thoroughly before soldering. Make sure the batteries are fresh and connected properly. If

the motor still does not work – check Troubleshooting section of our web site.

CAUTION: Do not leave the motor connected to the batteries if the rotor is stalled. High current

through the transistor will make it very hot. It may burn your fingers if you touch it and eventually

may destroy the transistor.

It is easy to change and control the speed of this motor with only a few additional parts.

Experimentation kits allow you to add a speed control unit and conduct other experiments.

Summary of Contents for Kit 5

Page 1: ...ed 2001 Simple Motors LLC www simplemotor com Assembly Instructions Kit 5 1 Insert the T pin into one of the caps 2 Insert the rotor core into the same cap as shown below Apply some pressure to push the rotor core approximately 1 2 10 12 mm into the cap ...

Page 2: ... magnets to the flat surfaces of the rotor core with the letter S facing outside or a dimple facing inside Your kit includes 4 magnets If you want to try 2 magnets first glue them to the opposite sides Straighten the T pin if necessary You can check it by spinning the rotor between your thumb and index finger Again be very careful All kits have magnets with one of the poles marked with either a le...

Page 3: ...letely Align the marks on the stand with the line on the board as shown below Note that the star s position and the marks are approximate sometimes you need to move the stands slightly to achieve the lowest friction Keep in mind that super glue bonds instantly so try to be as accurate as possible in these procedures 9 Insert the rotor into the stand marked with the blue star Glue it to the board t...

Page 4: ...een the tape and the head of the nail o Tape one end of wire leaving about 6 15 cm open You may use the tape that is already on the nail o Wind all the wire in one rotational direction either clockwise or counterclockwise moving back and forth along the nail Try to be as accurate as possible Do not let the wire slide off the end of the electromagnet o Tape the second end of the wire using the same...

Page 5: ... it generates 14 You may add a ZNR if you want to experiment with higher voltages or make more reliable motor The ZNR is a small electronic part that absorbs the spark inside the reed switch In our experiments the ZNR provided an additional reed switch protection even in the motor with the transistor The ZNR is not required for the motor to work You may also add it later However if you decided to ...

Page 6: ...pieces of wire you cut earlier and clean the wire tips using sandpaper to remove the insulation Clean about 3 8 10 mm on both ends of each wire piece Solder these wire pieces to a reed switch and the ZNR as shown in the first picture If you did not use a soldering iron before it is a good idea to practice on soldering two pieces of wire to each other See the Links page at our web site for tips on ...

Page 7: ...he gold star on the board However disregard the gold star position for Kit 8 as in this case the universal stand should be located in front of the magnets Check the rotation of the rotor to see that it does not hit the reed switch IMPORTANT The most sensitive part of the reed switch is not in the middle of it but more to the side as shown below You should hear the clicking sound when each magnet p...

Page 8: ...V DC You will need 4 AA size batteries To understand how the jumper wire works let s take a look at the connections inside a typical battery holder The following diagram shows how to get 1 5 3 4 5 and 6 Volts using 1 2 3 or 4 batteries and a jumper wire shown in blue color Arrows show the current flow for 1 5 3 and 4 5 Volts settings Could you trace the current when all 4 batteries are inserted th...

Page 9: ...and hold them in place This is how the jumper wire is actually used for 1 5 Volts experiments one end is disconnected and may serve as on off switch 19 Locate the base B collector C and emitter E leads on the transistor IMPORTANT do not overheat the transistor when you solder it The soldering iron heat may destroy the transistor If you were unable to attach the wire in 4 seconds let the transistor...

Page 10: ...ou may tape the wires to the board using scotch tape 21 You may connect a capacitor as shown in the diagram above Do not forget to remove the insulation from the magnet wire before soldering It is not a required part for the motor to work but it may prolong the life of the reed switch However using the ZNR as shown in step 15 usually provides better results Start with 1 5 V If the motor does not w...

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