Guide

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Setthearmaturefirmlyintothemotorcase.
Holdthe200-turnelectromagnetbetweenthe
frontandbackarmatureparts,thenputthe
startingknobonit.
Referringtopage3,
windeachsideofthe
enameledwireonto
eachbobbinstopperof
the200-turn
electromagnet.
Putthebatteriesinit,thenturntheswitch
on.Turnthestartingknobandcheckthat
themotorstartstorotate.
Cuttheplastic
wireat30cm
andremove
theplastic
coverfora
lengthof4cm
fromeachend.
Thenattach
thewiresto
theplugsas
shown.
Wecanseethattherearelotsofelectric
appliancesthatuseelectromagnets.Almostallof
themarebuiltwithamotorintheappliancewhich
usestheforceofanelectromagnet.Tolearnabout
themotorwhichisusedinanappliance,let'smake
amotor!
Front
armaturepart
Commutator
Awire
Awire
Batteryholder
Startingknob
Motor
Startingknob
Back
armaturepart
Shaftretainer
Armature
Motorcase
Commutation
brush
Electromagnet
with200turns
Finished
Howtoattachtheconnecting
plugstothecoatedwire
1.
3.
2.
Insertalltheway
②Motorcase③200-turncoil⑦Enameledwire⑧Coatedwire
⑨Armature⑩Shaftretainer⑪Connectingplug⑫Sandpaper
AssemblyAssembly
Whatyouneed
fromthekit:
Let'smakeyourmotor!
Finished
Threadtheendof
thewirethrough
theholeabout4
cmandfoldit
back.
Winditaround
theplugseveral
times.
★Windtightly
sothewirewill
notstickout.
Turn
ON!
●Checktheconnectionsofthewires→Seepage11andrecheckhowtomakeamotor.
●Checkthebatterylevel→Ifitislow,changetoanewbattery.
●Isthereanironcoreinthecoil?→Checkthatthecoilhasanironcoreinit.
●Checkthattheenameloftheenameledwireisstrippedoff
→Bufftheenameledwirewithsandpaperagain.
●Turnthestartingknobeasilywithyourfingers→Seepage11andchecksection.
●
Makesuretheenameledwirewhichiswoundaroundthestopperofthecoilistouchingthe
commutatorofthearmature
→Seepage11andchecksection.
●Makesurethecommutatorandcommutationbrusharetouchingeachother
→Seepage11andchecksection.
Whenthemotordoesnotstarttorotate
Motorpartnamesandfunctions
T h e co m m ut a t o r h a sa m e t a l li c p a r t a n d a
no n - m et a ll ic  pa r t .E v er yh a lf r ot at i ono f th e 
el ec tr oma gne t c han gest hedi rec ti o n o f t he
currentflow.
W he nt h e c om mu t a t io nb r us h t o u ch es t h e
commutator,currentflowstothearmature.
Repulsingorgettingattractedbythemagnetic
forceoftheelectromagnet,themagnetmakes
thearmaturerotate.
Thearmatureismadebywindingcoilsaroundan
ironcore.Ifelectriccurrentflows,itbecomes
electromagnetic.
Commutator
Magnet Armature
Commutationbrush
Beforestudyinghowtorotatethe
motor,learnthepartnames.
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Metallicpart
Non-metallicpart
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Mechanism of the motor