布布Important:generalrulesforwiringSettingtheMotorTechnicalnoteonhowthecurrentsareregulatedWireThepowersupplyTheheatedbedTheXmotorTheYmotorTheZmotorstopTheXendstopTheYendstopTheZendstopTheextrudermotorThehot-endribbonConnectionstothecontrollerThepowerThebedpowerTheXmotorTheYmotorTheZmotorTheextrudermotorThehot-endheaterresistorwiresinthehot-endribbonTheXTheYTheZThebedtemperature Thehot-endfan

內XYZXYZXYZXZ

ofthisstage

目machinewillbereadytoAllthewiresfromelectriccomponentsinthemachineruntothecontrollerelectronics.Whatyouaregoingtostoroutethosewiresroundtheframefromeachcomponenttothecontroller,leavingagenerousextralengthwhenthecontrollerisreachedandnotatthattimeconnectingthewiretothecontroller.Then,whenallthewireshavebeenattachedtotheframewithcableties,youwilltrimthemandmakethefinalconnectionstothecontroller.Youcanroutewiresandattachthemwithcabletiesasyougo.Youwillthenhavetoclipoffthosecabletieswhenanewwirerunsonthesamerouteandaddanewoneholdingbothwires.Thisisslightlywasteful,buteasy.Alternatively,holdallthewirestemporarilywithstickytapewhenyouroutethem.Thengoroundthemachineremovingthetapeandholdingthewireswithcabletieswhenallthewiresareinplace.Thisismorefiddly,butmore

你將要做的是把這些線從一個元件圍繞狂也不是現在把線連接到控制器上。Ifyouclickonthepicturesbelow,youwillbetakentoahigh-resolutionversion.Thiswillhelptomakedetails

Ifyouneedtoidentifywires(therearequiteafew)thenyoucanusethetypeofstickytapecalled"invisible"tape.Thishasasurfacethatyoucanwriteonwithafelt-tippedpen.Justputaloopoftaperoundofawireandwrite"X-endstop"(orwhatever)onthetape.Youcaneitherremoveyourlabelswheneverythingisconnectedandtested(neat)orleavethemon(convenientifyoudismantlethemachinelater).Particularlyusefulistotapetogetherandlabelthefivesetsoffourmotorwiresattheirendsfurthestfromtheirmotors.Thishelpspreventtangleswhenyouarethreadingthewires,andyoucaneasilyidentifythemwhenyoucometowireupthecontroller. wiringupYouwilldoseriousdamagetoyourRepRapelectronicsifthepowerisconnectedbackwards.Otherdamagingmistakesaretoshortouthigh-currentdeviceslikemotorsandheaters,andtoconnecthigh-voltagedeviceslikestepper

endstop（，同時你也可以很簡單的重要：基本布線原driverstosignalinputsliketemperaturesensors.So-inthesectionsbelowwhere lsyoutocheckthings-pleasecheckthemthoroughly.Itisworthtakingthetime...Alsoimportantforthestepsbelow:whenattachingwirestoscrewconnectors,stripabout5mmofinsulationoffthem,twistthembetweenyourfingers,andtinthemwithsolder.Thetinningisneededforgoodcontact,andtoensurethatfrayingdoesnotcauseshorts.Whenwiresleaveadevice(likeamotor)orarriveonnection(likethescrewconnectorsonthecontroller)leaveasmallslacklength(about20mmlong)forstrainrelief-don'thavethewirestaut.Finally,whenmakinganychangestothewiringoranyotherelectricalaspectofthemachine,disconnectboththepowerandtheUSB.WireSmall

時，剝離5毫米絕緣層，用你指彎曲他度（20毫米長）以消除應力，不要使性時，首先拔下USB并去除電源。工Youmayalsoneedareelof"invisible"

零1PrintedU3M3x25mm3M33M36cableabout物數13M3x253M33M36aboutSettingtheMotorTherearefoursmallpotentiometersontheMelziPCB.ThesesetthecurrentthatthestepmotordriverchipsonthePCBwillsendtothemotors.Itisveryimportanttosetthesecorrectly,astheMelziPCBisdeliberaydesignedtobeabletodrivebiggermotorsthanmostRepRapsuse(toallowforupgradesandenhancements).Thismeansthatitispossibletosetthecurrentstoohigh,whichwilldamagethemotors,andpossiblytheMelziPCB.ThewiperoneachpotentiometergeneratesaDCvoltagethatissenttothechip.Thebiggerthevoltage,thehigherthecurrentthatthechipwillsendtotheThesevoltagesshouldbeset0.4Vandthissectionlsyouhowto

設置電機電流設置這些正確很重要，MelziPCB是故意設Reprap使用的更大的電機置的電流太大，而隨壞電機甚至損壞PCBMakesureyouareworkingonaninsulatingsurfaceandthatnothingthatconductselectricitycantouchanypartoftheMelziPCB.Startbyputtingthejumper(redarrow)acrossthetwopinsclosesttoyouinthepicture.ThiswillpowerallthelogicoftheMelzifromtheUSB.Setyourmetertoreadvolts,andconnect monwiretothenegativepowerscrewterminalontheMelzi.Screwitinsecurely,butdon'tover-tightenit.PlugyourMelziintoyourcomputerusingitsUSBcable.TheMelzi'sLEDshouldcomeon.Puttheothermeterprobe(+volts)onthesinglesoldertabattheleftofeachpotentiometer.Takeverygreatcarenottoshorttoanyotherconnectionorcomponentwiththeprobe.Youmayhavetostabtheconnectionquitehardtogetareading-thesolderingofthcan

MelziPCB板。Melzi的邏輯電路，從USB中來。Melzi的負電壓端。將它固定，但是不要太MelziUSB接口插到電腦上，Melzi把萬用表的另一個表頭接到電位器的每一個焊上要，要表coatthesolderwithathininsulatinglayerofflux.Useasmallscrewdrivertoturnthepotentiometeruntilthemeterreads0.4volts.Thisdoesn'thavetobeaccurateto10decimals-somewherebetween0.39and0.41voltsisfine.Dothisforeachofthefourpotentiometersinturn.Thevastmajorityofpotentiometersincreasethevoltagebyturningclockwise.Butatinyfewworkbackwards...Notedownwhichwayyouneedtoturnthepotstoincreasethevoltage.Youmayneedthatinformationlater.WhenyouhavefinisheddisconnecttheUSB,andthenremovethescrewed-inmeterconnection. currentsareregulatedYoudon'tneedtoknowthis,butitisThestepmotorsarepoweredat12volts(Mendel)or19volts(Huxley).Ifyoumeasuretheofoneofthemotor'scoils,youwillfindthattheyarearound3ohms.Thisimpliesacurrentof4Aifyouweretodrivethemfrom,say,12V,whichisfartoomuch.Weneed1A.

數是0.4V。這不需要精確到0.0X，所以在0.39~0.41之間都OK。當你完成后，斷開USB，移除和萬用表的連關于電流控制的技術說明Mendel的步進電機是由12V電壓驅動（Huxley19V電壓驅動。如果你想要在3歐姆。所以可以得出驅動電流為4A，也就是說，12V太多了。因為需要的是1A的電流Thedriverchipcouldregulatethe12Vdownto3Vtogetthatcorrectcurrentof1A.Butthenitwouldbedissipating9Vx1Ax2coils=18watts.That'ssoldering-ironpower,andthechipwouldSowhatitdoesinsteadistopulse-widthmodulation( ):idsanultrasonicsquarewavetothemotorandvariesitsmark-spaceratiotogiveanaveragecurrentof1A.TheMOSFETsinthechiparetheneitherfullyoff(highvoltagebutzerocurrent,sonopowerdissipationatall)orfullyon(highcurrent,butverylowvoltage,soverysmallpowerdissipation).Thatwaythechipsstayatasensibletemperature.WhenyourRepRapisworkingproperlytheyshouldbearound10oCaboveambient.Thechipscanthenalsodocleverthingswiththe toenergisethecoilsinsmoothlyvaryingproportions.Theydothistogiveyoumicrostep.Themotorshave200stepsperrevolution,butthedriverchipscancausethemto'hang'part-waybetweentwopolestopositiontherotationmuorepreciselythan1/200ofarevolution.Thisbothgivesmuchfinerresolution,andmuchlessjerky

驅動可以把12V轉換成3V，從而得到正確的電流。但是當它散熱時，9Vx1Ax2coils=18瓦特。這是烙鐵的功率，這會所以改用：它傳送給電機，并且平均電流1AMOSFET完全關小的功率消耗。這種方式使處在一個Reprap工作正確時，它們應該比環境溫度高10攝氏度左右。可以做很多很棒的事通過，以變可以使它們比1/200更加精確。這既提Why,youmaywonder,notusemotorswithahigher toavoidallthisfancyfootworkneededfromthecontrollerchips?Theansweristhatfinecontrol-thechipscansensetheinstantaneouscurrentthatthemotorsaredrawing,andalsothebackEMFthattheygeneratewhentheymove.Becausetheyhavelotsofdrivecurrenttospareandaredrivingalow,theycandoclevertrickstoethedelaysthatwouldotherwisebecausedbysuchthingsasthemotor'sinductances.Ifyouexaminetheactualsignalthatthedriverchipssenddownthewirestothemotorsonanoscilloscopeyouwillseethatitisverycomplicatedindeed.Thiscomplexitymeansthatyoucan'trealisticallymeasurethemotorcurrentsusing-say-asimplemeter.Butyoucansetthecontrolvoltagegoingintothechipsthatdecidesitsaverage.Thatiswhatyoudidabove.Youwillseethroughoutthesethatwegoonandonaboutdisconnectingthepowerbeforechanginganywiring.Thisisincrediblyimportant,especiallygiventhewaythesteppermotorsarecontrolledasjustdescribed.Asyoucannowimagine,ifyoudisconneteppermotorwirewhilethemotordriverchipispoweredup,thechipseesthecurrentfalltozero,soitcompensatestoincreasethe

你可能想知道為什么不使用一個大電阻的電機去避免控制器的苛刻要求？答案是精細的控制——可以察覺微小的電這也就是說你不能使用簡單的電流計測量電的流是可設入電然決它均，就果你連接步進電機線，當電機驅動器上電以后，發現電流變成0以后，開始增加電current.Butit'swellnighimpossibletodisconnectanymechanicalconnectorcleanly-thecontactsalwaysmakeandbreakasthewireissliding.Sowhena esamakethechipistryingtodrivethemotoratfullblast,withtheresultthatoneorbothofthemwillgoBANG!,thennevertalktoyouWireInwhatfollowsyouwillfindtheroutestheindividualconnectionssuperimposedonthispicture.Itistakenfromthebackofthemachine,andthesideofthemachineonthepicture'srightisthereforetheleftsideofthemachinewhenitisviewedfromthefrontinitsnormalworkingposition.Almostallthewiringrunsdownthetrianglethreadedrodtotheforeofthepicture,andthenalongthetrianglethreadedrodatthebottom.

AttachthethreeUclipstotheframeasshown.Thecontrollerboardgoesonthelefthandsideofthemachineatthefront(thatis,oftheframethatisonthesamesideastheXLRpowerinputconnector,butattheotherend).Usingasharpbladecutthe3mminternal-diameterplastictubeintothreepiecesofequallengthofabout7mm.Thesewillformspacersbetweentheprintedcircuitboard(PCB)ofthecontrollerandtheUclips.AdjustthepositionsoftheUclipssothattheylineupwiththeholesinthePCBandthePCBisvertical.

安裝控制電路在XLR電源輸入接口的另一端。器的PCB板和U形夾之間的墊片。對齊，并且PCB是垂直的。Attachth totheclipswiththescrews,washersandnuts.Theorderscrew7mmplasticUFacingthemachinefromthefront,thecomponentsonthePCBshouldbeawayfromthetriangleframeandtheUSBconnectorandSDcardholdershouldbeatthetopofthePCBpointingtothefront.ThepowersupplyDetachtheXLRplugfromtheframevertexattheback.

PCB7UUSB接口，SD卡槽應該在PCB頂部并指向電源InwhatfollowstakegreatcarethatthereareNOfilamentsofwirethatarestickingoutfromtwistedbundles.Thesecancauseshorts.Barethehigh-currentwireends,andspliteachendintwoequalhalves.Twistthosehalvesseparay.Solderthetwofromthewirewiththeblackstripe(theGround-GNDwire)toPin1andtheplugstab.Solderthetwofromtheplainwire(the+12voltwire)toPins2and3.Thepinnumbersareembossedontheplug.ThepictureshowstheGNDconnectionsmade,andthe+12voltconnectionsabouttobemade.TheunsolderedforkinthepicturegoingtoPins2and3isshownalittlelong;thebaredwiresneedtobeabout2/3thelengthTrimtheexcesswirefromthetabwithside

已經完成，+12V的連接將要被完成。長。露的線需要大約2/3的長度。FittheXLRplugbackinthemachine.Thepictureaboveshowstherouteofthepowerwirecolouredcerise.LeaveasmallloopattheXLRplugfreeforstrainrelief.Attachitwithtapeorcableclipstothebottomrungofthetriangle,butleavethecontrollerboardendfreeforthemoment.TheheatedbedBaresofthetwothinwiresfromthebed(thethermistorwires)anduseyourmetertocheckthebetweenthem.Itshouldbeabout10Kohms(thoughthiswilldependonroomPushthemeterprobesinsofthethickwires(thebedheaterPCB).Theshouldbeabout1.5ohms.Runthepowerwireandthethermistorsignalwirefromtheheatedbedalongtherouteshown.Cable-tiethetwotogetherwheretheyloopfreeintheair.Asyoucansee,theloopjoinstheframeabouthalfwayup.

熱床的導線把萬用表的表筆放在厚線（PCB熱床）的末端，電阻應該在1.5歐左右。CheckthatthebedofthemachinecanrunfreelyfromoneYextremetotheotherwithoutthewirespullingtaughtandwithouttheircatchingonanything(particularlytheM5screwthatdrivestheZAgain,don'tattachthewirestothecontrollerforthemoment.TheXmotorRuntheXmotorwiresalongtherouteshown.(ThelittlebitofcerisecolouralongtheXaxisisfortheXendstop.Thatwillbedonelater.)Leaveagenerousloopinfreeair.RememberthattheZaxishastobeabletomoveupanddownitsfulllength.Don'tattachthewirestothe

的M5螺絲）X沿著布X電機線。（圖中X軸上一小點鮮紅色是，在后面用到TheYmotorRuntheYmotorwiresalongtherouteshown.Theyattachtothebottomthreadedrodoftheframeattheback.(ThelittlebitofcerisebytheYendstopswitchisthewireforthat.Thatwillbedoneinaminute.)Again,don'tattachthewirestotheTheZmotorThetwoZmotorsarewiredinseriesasshowninthediagramabove.Itdoesn'tmatterwhichmotorinthediagramistheleftoneandwhichtheright-theresultwillbethesame.

Y（那一小點鮮紅色的部分是Y停止末端的導Z RuntheZmotorwiresalongtheroutesshown.Makethejoinswhereindicated.Tomakethejoinbareabout10mmofeachwire.Putashortlengthofheatshrinkonone.FormeachendintoaV(bluewire),hookthemtogether,andthenclosetheVs(redwire).Solderthejoin(withtheheatshrinkfurtherawaythanshown-youdon'twanttoshrinkitprematurely).Movetheheatshrinkoverthejoinandshrinkitwiththehotbarrelofthesolderingiron(don'tusethetip-thatwillmakeamessofsolderontheoutsideoftheDon'tattachthewirestothe

stop soffthemotorwiresatthecontrollerboardend.Makesureyouleaveagenerouslengthoneachtoconnecttothecontroller.Ifyoutapedandlabelledyoumotorwires,putnewlabelsjustonthemotorsidesofthecutsbeforeyoumakeConnectyourendstopsusinowireseach.Itisagoodideatouseadifferentcolourforeachaxisasthiswillmakeiteasiertoget stopsconnectedtothecorrectinput.Youshouldnowhaveplentyofmulti-colourwirestrimmedfromthesteppermotors.Thediagramshowsaswitchwithalever.RepRapProMendelworksequallywellwithleveredandun-levered

停止末端線圖中顯示為一個帶桿的開關，Mendel可以Youwillprobablyfinditeasiesttoconnectthewiresto stopswiththemremovedfromthemachine.Unscrewthethreeh-shapedclips.Foreachendstopswitch,crimporsolderaterminalonto ofthewires,thencoverwithsomeheatshrinktoinsulatetheterminal.Connecttotheouterpinsofthelimitswitches(theNC=NormallyClosedconnections;RepRapexpectstheswitchtoopenwhen stopishit.)TheXendstop stopsandtheirhTheXendstopTheXendstopwiresrunalongthesamepathastheXmotorwires.Leaveareasonableloopbetweentheswitchandtheframe-youmaywanttoadjustthepositionoftheXendstop.Cableclipallthewirestogetherwheretheyloopfreeintheair.Getallwiresinthe

將更加簡單。旋松那3個h形夾。到開關的外側引腳（NC意味著常閉連接，XXX想要調節X停止末端的位置。loopthesamelengthforneatness(Hint:don'tpullthecabletiesfullytight.Thenyoucanslidethewiresthroughthemtogeteverythingneatbeforetightening.)Don'tattachthewirestotheTheYendstopTheYendstopwiresrunalongthelastpartoftherouteoftheYmotorwires.Don'tattachthewirestotheTheTheZendstop

Y停止 Z停止 TheZendstopwiresrunalongtherouteshown.Leaveagoodloopfromtheswitchtothepointwhereit connectswiththeframe.Youwillneedtoadjusttheheightoftheswitch.Don'tattachthewirestotheTheextrudermotorRuntheextrudermotorwiresalongtherouteshown.Don'tattachthewirestotheThehot-endribbon

Z停止末端線沿著路線。在開關和擠出電機線熱端帶狀線 Thehot-endribboncableshouldalreadybelooselywoundroundthePTFEfilamentfeedtube.AttachittotheframealongtherouteDon'tattachthewirestothe makesurethatallthemovingpartsofthemachinecanmovefreelyfortheirfulltravelwithoutfoulingorsnagginganyofthewiring.Ifyouhaveattachedallthewireswithtape,nowisthetimetogoroundthemachinecuttingoffthetape(don'tcutthewires...)andattachingthewirespermanentlywithcableties.

PTFE進連接到控制板 Whatyouaregoingto stotrimthewirestolength,twistthem,tinthem,andattachthemtotheappropriatescrewconnector.Whenawireisinitsconnectortheinsulationshouldabut(butnotenter)themetalpartoftheconnector.Thereshouldbenobarewirevisible.Whenyoutwistandtinsofthewires,putthemintheirconnectortocheckthelength.Ifanyarealittlelong,trimthemwithsidecutters.Whenyoutightenthescrewsinthecontrollerboard'sconnectorstakecareYourscrewdriverdoesn'tslipanddamageth,Youdon'tputexcessivetwiststressonthorpushagainstittoohard-supportitwithyourfreehand.ThepowerBeforeyouconnectthese,checkthewires'polarity.Separateabout30mmofofthetwopowerwires(don'tgetthebedwiresbymistake).Setyourmetertoreadvoltage.ConnectthepowersupplyintotheXLRplugontheframeandpluginthemainscable,butdon'tturniton.

你的不能滑動以及板過多的扭轉應力施加電源30毫米左右（不要和熱PuttheCOMorGroundprobeofyourmeteronthecopperat ofthewirewiththeblackstripe.PuttheVolts-Amps-Ohmsprobeonthecopperintheplainwire.Turnonthemains.Yourmetershouldreadabout+12volts.Ifitreads0or-12volts,youhavemadeamistake-finditandfixit.TurnoffanddisconnectthepowerCutthewirestolengthsothattheywillreachthepowerconnectoronth TheGNG(blackstripe)wiregoestothetopoftheconnectorandwillhavetobealittlelonger.Barethenendsofthewiresandtwistthemtight.Tinthem.Don'tusetoomuchsolder,ortheresultwillbetoofattofitintheScrewthewiresintothepowerconnector.AsmentionedtheGNDwirewiththeblackstripegoestothetop,theplainwiretotheDon'tdothepowerconnectoruptight-youaregoingtohavetoconnectsomethingelsetothesameconnectorinaThisisthesinglemostimportanconnectioninthemachine.Ifyouget

把萬用表的地表筆接到帶黑色條紋的導線開啟電源，你的讀數應該在+12伏左右，如wrongexpensivebadthingswillhappen.Takeamomenttodoublecheckit.ThebedpowerThesegototheconnectorjustabovethepowerinputconnector.Againtheblackstripeisthelowvoltageoneandgoestothetop.Theplainwireisthe+12voltswireandgoestothebottom.Connectthewiresinexactlythesamewayasthepowerwires.TheXmotorThesegotothebottomconnector.FromthebottomupwardsthesequenceisBlack,Green,Blue,Red.TheYmotorThesegototheconnectorabovetheXmotorconnector.FromthebottomupwardsthesequenceisRed,Blue,Green,Black(thatis,theoppositeofX;rememberthatitistheYcarriagethatmoves,whereasXandZmovethehead;thereforeYneedstoturnbackwards).TheZmotorThesegototheconnectorabovetheYmotorconnector.FromthebottomupwardsthesequenceisBlack,Green,Blue,Red(thatis,thesameasX).TheextrudermotorThesegototheconnectorabovetheZmotorconnector.FromthebottomupwardsthesequenceisBlack,Green,Blue,Red(thatis,thesameasX).

熱床電源線部。電源線是+12V線，連接到底部。XYY托架移動時，XZY和Z部往上是黑，綠，藍，紅（和X一樣擠出電機線部向上是黑，綠，藍，紅（和X一樣Thehot-endheaterresistorwiresinhot-endribboncableAreminderfromwhenyouwiredthehotend:thewiresacrosstheribboncableinordergolikethis:Wirewiththecolourstripe:Fan+FanHeaterresistorwireHeaterresistorwireHeaterresistorwireHeaterresistorwireThehot-endheaterresistorwirescomeinpairs-youwillrememberthatyouconnectedtwotoeachendoftheresistortogetagoodcurrentcarryingcapacity.Thehot-endheaterresistorwiresgototheconnectorabovethebedpowerwires.Splitthemofffromthehot-endribboncable,bares,twistthepairstogether,tinthem,andfitthemintheconnector.Thepolaritydoesn'tmatter-youcanconnectthemeitherwayUnusedTheconnectorabovethehot-endheaterresistorwireconnectorisnotused.

帶狀線中的熱端加熱電阻線沒有使用的連接器TheXTheXendstopwiresconnecttotheconnectorabovetheunusedconnector.Thepolaritydoesn'tmatter-youcanconnectthemeitherwayround.TheZTheZendstopwiresconnecttotheconnectorabovetheYendstopconnector.Thepolaritydoesn'tmatter-youcanconnectthemeitherwayround.ThebedtemperatureThewiresthatrunalongwiththebedpowerwiresconnectthebed'stemperature-measuringthermistor.TheyconnecttotheconnectorabovetheZendstopconnector.Thepolaritydoesn'tmatter-youcanconnectthemeitherwayThehot-endtemperatureTherearetwowiresfromthehot-endribboncablethatconnectthehot-endtemperature-measuringthermistor.Theyconnecttotheconnectorabovethebedtemperatureconnector.Thepolaritydoesn'tmatter-youcanconnectthemeitherwayround.Thehot-endfanThehot-endfanwiresinthehot-endribboncableconnecttothepowerconnector-thefanisonallthetime.Makesureyougetthepolarityright.Youshouldhavemarkedthefan's+and-connectionswhenyouwiredupthefan.Tracethemthroughbycountingwiresacrosstheribboncable.

X停止末X停止末端連接線連接到不被使用的連接器Z停止末ZY停止末端連接器熱床溫度線Z連接器上的連接器，極性熱端溫度線熱端風扇線在熱端帶狀線中的熱端風扇線連接到電源SlackenthepowerwirescrewsandconnectthefanwiresinparallelwiththeTightenthesescrewsfirmly-thisconnectorhastocarryalargecurrent.NeveroperateyourRepRapwithoutthefanconnectedandrunning.Theextruderneedsthecoolingatalltimes.Setyourmetertomeasure Shorttheprobeends.Youmayfind(particularlyifyourmeterisnotthemost