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————————————————————————————————————————————NEWLOWERPRICED,REVISEDKITHASADJUSTABLECONTROLThissimpleelectronickitusesmagneticlevitationtosuspendsmallobjectsuptoabout1/2ounce(15Grams)orsoinmidair.ThisisanidealScienceProjectforages12andup!Detailed6pageinstructionsincludetheoryandclearimages.Seebelowtoordereitherthecompletekitofparts,orfullyassembledandtestedversions.Theairgapisabout3/8.Theelectromagnetstabilizesthepositionofthesuspendedrareearthmagnet(s)attachedtothelevitatedobject.FeedbackisprovidedbyalinearHallEffectsensormountedundertheelectromagnet.Oncecalibratedproperlyusingthecircuitboardmountedcontrolknob,suspendedobjectsarestableaftersettling.Theknobiscanbeusedtoadjusttheairgapbyabout1/4.NOTE!Iamoftenaskedifthedesigncanbemodifiedtoliftmoreweight,orifthegapcanbeincreased.TheanswerisNO.Thereareinherentlimitationsduetothesizeoftheelectromagnetandhowquicklyitsfieldcanbeswitched.Themostweightthatcanbeliftedwiththistypeofdesignisabout1ounce(30grams).Theairgapcanbeextendedupto1/2(13mm)dependingonweight.Gettinganobjectinplaceisrelativelyeasy.Itisaneeriefeelingwhenyouoffertheitemuptothesweetspotasthecontrolsgrabthemagnet-pullingitslightlyintoposition.Itfeelslikesomekindofsciencefictionforcefield.Objectssetspinningwillcontinuetospinforseveralminutes!Ifyoudon'tseeavideoclipabove,thenclickheretoseeitonYouTube.Thekitassuppliedhasalimitedrangeofweightthatitcanliftwhichisnomorethan.5ounceincludingthemagnets.Itemslikeapingpongballwouldbetoolight,andextraweightwouldneedtobeaddedinsidelikemoremagnetsorsmallwashers.Thedesignrequiresthatthemagnetbeatthetopofthesuspendedobjecttokeepthemagnetfromflippingover.Ifpoweristurnedoff--themagnetwilldropaway.Returningittopositiontakesalittlepractice--ifyoumissthesweetspotthemagnetwillgoupandsticktotheelectromagnetaboveit.SECUREON-LINEORDERINGSECUREONLINEORDERING:Orderthekitusingyourcreditcard,PayPalaccount,oreCHECK.MAILORDER:Clickheretodownloadmyorderform,andmailitwithyourMoneyOrderorbankcheck.SHIPPING:IshipviaUSPSPriorityMailinUnitedStatesfordeliveryin1-3days,$5.50-$7.00dependingonweight.Foreignshipping(outsidetheUS),shipsviaUSPSGlobalExpressMail.$30.00-$35.00USdependingonweightandcountry.Deliveryin5-8days.Pleaseincludeyourphonenumberwhenplacingorder.Emailmeifyouhaveaquestion.ORDERSTYPICALLYSHIPWITHIN24HOURSOFPAYMENT.Youwillreceiveanemailconfirmationwhenyourorderships.Allsalesarefinal,norefundsorexchangesotherthanfordamagedormissingparts.EDUCATIONALDISCOUNT:15%offforordersofmorethan15kitswith2weeknotice.Icancustomconfigurekitsperyourrequest.Sorry,nopurchaseorders.Basickitofpartsaspictured,includesdetailedinstructionsREQUIRES12VDC200mApowersupply-orderseparatelybelow$38.00TheKitincludesallpartstomaketheelectroniccircuit,andincludestheelectromagnet,and2strongpermanentmagnets.Pleasenotethatassemblingthiskitrequiressomebasicknowledgeofelectronics,tools,andsomepreviousexperiencesolderingelectronickits.OrdertheAssembledandTestedversionsifyouarenotsureyouareabletobuildthekit.Fullyassembledandtestedaspictured,includesdetailedinstructionsREQUIRES12VDC200mApowersupply-orderseparatelybelow$48.00Fullyassembledandtestedaspictured,includesdetailedinstructionsINCLUDESwallpowersupplyand2magnets(notshown)(runson120Volt60Hz)$55.00FullyassembledandtestedCLASSICKIT-just4left!previousdesignthatisnowdiscontinuedaspicturedREQUIRES12VDC200mApowersupply-orderseparatelybelow$67.00$45.00PARTSANDACCESSORIESotherpartsavailablebyrequestExtraNeodymiummagnetsaspictured(2providedwitheachkit)3/16X3/8(5X10mm)$1.50eachElectromagnetaspictured60Ohmcoil470feetof31gagewirewitha2boltandnutCoilmeasures1X11/4(24X29mm)$7.00eachPowersupplyaspicturedoutput:12VDC300mAinput:120Volt60Hz$8.00