Objet Connex500 Installation and operation manual

DOC-13000 Rev. E 7–1
Operating & Maintaining the
Connex500/350 3-D Printer
StartingtheConnexPrinter ............................................................... 2
LoadingModelandSupportCartridges.......................................... 4
ProducingModels ............................................................................... 5
PrinterInterfaceColor Key.................................................................. 7
PrintingIndicators ................................................................................ 8
ResumingProductionAfterPrintinghasStopped......................... 9
ChangingtheModelMaterial ......................................................... 10
KeepingtheConnexPrinterinIdleMode..................................... 15
ShuttingDowntheConnexPrinter ................................................ 16
MaintainingtheConnexPrinter ..................................................... 18
RoutineMaintenanceSchedule......................................................... 18
CleaningthePrintHeads................................................................... 19
PatternTest........................................................................................... 21
ImprovingPrintQuality .................................................................... 22
CleaningandReplacingtheWiper................................................... 23
ReplacingtheRollerScraper(Knife) ................................................ 28
AligningthePrintHeads ................................................................... 30
CalibratingPrintHeads ..................................................................... 34
ReplacingPrint Heads........................................................................ 40
TestingandCalibratingtheUVLamps ........................................... 49
CalibratingtheLoadCells ................................................................. 51
ReplacingtheOdorFilter................................................................... 52
ReplacingtheUVLamps ................................................................... 52
Built‐inTests......................................................................................... 57
ReplacingtheWasteContainer ......................................................... 62
CleaningtheExteriorPanels ............................................................. 64
All manuals and user guides at all-guides.com
all-guides.com

Operating & Maintaining the Connex500/350 3-D Printer
7–2
DOC-13000 Rev. E
Figure 7-1: The Connex500 3-D Printer
Starting the Connex Printer
1. Turnonthemainpowerswitch,locatedatthebackoftheConnex
printer.
Figure 7-2: Main power cable and switch
ThemainpowerswitchturnsontheConnexprinter,whichincludes
thebuilt‐inConnexcomputer.
Printer cover
Printing-materials &
storage compartment
CAUTION!
•Do not attempt to operate the Connex printer before being trained by
an Objet customer-support representative.
•Observe all safety warnings and follow the safety guidelines described
in chapter 2.
All manuals and user guides at all-guides.com

DOC-13000 Rev. E 7–3
Connex500/350 User Guide
2. Afterthecomputerboots,logintoWindowsandlaunchtheConnex
controlapplication:
•Onthecomputerdesktop,double‐clicktheConnexprintericon.
or—
•FromtheStartmenu,selectObjet > Connex500/350Connex500/350.
TheConnexprinterinterfacescreenopens(seefigure 7‐3).Allmonitoring
andcontrollingoftheConnexprinterisdonefromthisinterface.
Figure 7-3: Connex500 interface
A valid HASP key is required on the printer computer for the application to
open. This key should be installed during printer installation. If the
application does not open and a HASP message appears, contact your
dealer or Objet Customer Support.
Printer mode Current activity
Support material
cartridges
Display
toggle button
Pause button
Stop button
Online/offline
button
Model material
cartridges
Connex installations utilize one monitor for displaying both the computer
running Objet Studio / Job Manager and the computer installed inside the
printer. Make sure that the KVM (keyboard-video-mouse) switch is in the
correct position so that the Connex printer interface is displayed.
All manuals and user guides at all-guides.com

Operating & Maintaining the Connex500/350 3-D Printer
7–4
DOC-13000 Rev. E
Loading Model and Support Cartridges
Connexprintersusetwocartridgesofmodelmaterialandtwocartridgesof
supportmaterial,eachweighing3.6kilogramswhenfull.Agraphical
representationofthecartridgesandtheircurrentweightappearsinthe
printerinterface(seefigure 7‐3).
——
Important:Ifyouneedtoreplacethemodelmaterialcurrently
installedwithanothertype,see“ChangingtheModelMaterial”
onpage 7‐10.Otherwise,makesuretoreplacethemodel
cartridgewithonecontainingthesametypeofmaterial.
To load model and support cartridges:
1. OnthefrontoftheConnexprinter(seefigure 7‐1),pullopenthedoors
ofthestoragecompartment.
2. Ifyouarereplacingacartridge,graspitshandleandpullthecartridge
out,takingcarenottotwistorturnit.
3. Loadmodelandsupportcartridgesintotheirrespective
compartments—themodelcartridgeontheright,andthesupport
cartridgeontheleft.(Notethatthecartridgesonlyfitintotheircorrect
compartments.)
Youshouldfeelsomeresistance,asaneedlepiercesthecartridge.
4. ChecktheConnexprinterinterfacetomakesurethatthenewcartridge
isdetectedandthatitsweightisdisplayed(seefigure 7‐3).
5. Closethestorage‐compartmentdoor.
The printer uses RFID technology to automatically identify the material
cartridges. For this purpose, an RFID module is part of the printer hardware.
Tampering with this module will render the printer inoperable and may void
Objet warranties and service contracts.
Tips about replacing cartridges:
•You can replace material cartridges either before or during printing.
•You can replace partially used cartridges to avoid the need for replacing
them during printing.
•You can load partially used cartridges, as long as they contain more
than 100 grams of material.
All manuals and user guides at all-guides.com

DOC-13000 Rev. E 7–5
Connex500/350 User Guide
Producing Models
TheConnex500/350printerproducesmodelsbyprintingtrayfiles
preparedintheObjetStudioapplicationandsenttotheprinterfromthere.
Forinformationaboutpreparingmodelfilesforprinting,see”UsingObjet
Studio”orObjetStudioHelp.
To prepare the Connex printer for producing models:
1. MakesurethatthebuildtrayintheConnexprinterisemptyandclean.
Ifnot,removeoldmaterialwiththescraper,andcleanthetray
thoroughlywithcleaningfluid.
2. Makesurethatthereissufficientmodelandsupportmaterialloaded
intheprinter,asindicatedintheConnexprinterinterface(see
figure 7‐3).Youmaywanttoreplacethecartridgesofmodeland
supportmaterialcurrentlyloadedintheprintertoavoidtheneedfor
replacingthemduringprinting.
3. AtthebottomoftheConnexprinterinterface,clicktheredbuttonto
switchtheprintertoonlinemode.
Thecolorofthebuttonchangesfromredtogreen(seefigure 7‐4).If
thereisajobintheJobManagerqueue,itissenttotheprinter.
OntheConnexprinterinterface,theprintermodechangesfromIdletoPre‐
print,astheprinter’scomponentspreparethemselvesforproduction:
•Theprintblockisheated.
•TheUVlampsarepoweredandtheywarmup.
Whenprintingbegins,JobManagersendssevenslicestotheConnex
printer.ThisisthestandardbufferbetweentheJobManagerandthe
printer.Aseachsliceisprinted,theJobManagersendsanotherslicetothe
printer.
Dependingonthesizeofthemodel(s)tobeproduced,printingcantake
betweenseveralhourstoseveraldays.Aslongasthereisenoughmodel
andsupportmaterialinthesupplycartridges,printingproceeds
automaticallyuntilthejobisfinished.
Before beginning to produce models, it is recommended that you check the
current printing quality of the print heads by performing a pattern test (see
“Pattern Test” on page 21).
CAUTION: Use protective gloves when cleaning the build tray, and be
careful of the sharp edges of the scraper blade.
Forinstallingmaterialcartridgesandreplacingemptyones,see
“LoadingModelandSupportCartridges”onpage 7‐4.
Forchangingthetypeofmodelmaterialcurrentlyloaded,see
“ChangingtheModelMaterial”onpage 10.
During printing, the server computer must remain on and it must
communicate with the Connex printer. Do not log-off Windows until printing
is finished.
All manuals and user guides at all-guides.com

Operating & Maintaining the Connex500/350 3-D Printer
7–6
DOC-13000 Rev. E
TheConnex500/350printerusesoneortwomodel‐materialcartridgesand
onesupport‐materialcartridgetoproducemodels.Ifadditionalcartridges
areinstalledandtheyarenotneededforthecurrentprintjob,theprinter
interfaceindicateswhicharebeingused:
•Bluecartridge—usedfortheprintjob
•Graycartridge—notusedfortheprintjob
Youcanmonitorprinterstatusindicatorsbyswitchingtheprinterinterface
display.Todothis,clickthedisplaytogglebuttonintheprinterinterface
screen.
Figure 7-4: Connex printer indicators
Block temp.
in front of
support heads
Block temp.
behind
support heads
Waste weight
Display
toggle button
Printer set to
online mode
(green)
Temp. of each
support head
Chamber temp.
Left UV lamp
Right UV lamp
Block temp.
behind model
heads
Temp. of each
model head
Block temp. in
front of model
heads
Support/Model
material in print-
block reservoir
System
vacuum level
Pre-heating of
support & model
material
All manuals and user guides at all-guides.com
all-guides.com

DOC-13000 Rev. E 7–7
Connex500/350 User Guide
Printer
Interface
Color Key
Thebackgroundcolorsintheprinterindicatorfieldstellyouataglance
whetherornotthevalueoritemissuitableorreadyforprinting.
•Green—suitable/readyforprinting
Forexample,infigure 7‐4:
Ambient—Theambienttemperatureoftheprintingchamberis
withintheacceptablerange.
HeadsLiquid—Thelevelofmodelandsupportmaterialintheprint‐
blockreservoirisOK.
HeadsVacuum—Thevacuumlevelinthesystemiswithinthe
acceptablerange.
•Red—notsuitableforprinting(orindicatesawarning)
Forexample,infigure 7‐4:
Waste—Theweightofthewastecontainerisgrams,morethan
allowedwhenbeginningaprintjob.(See“ReplacingtheWaste
Container”onpage 7‐62.)
•Blue—notready
Forexample,infigure 7‐4:
UVlamps—TheUVnoton.
Heads(°C)—Theheadshavenotreachedthetemperaturerequired
forprintingmodels(inprintingmode).
Thecolorofthematerialcartridgesdisplayedintheprinterinterface
indicateswhichcartridgesareactiveforthecurrent(ornext)printjob.
•Blue—activecartridges
•Gray—reservecartridges
All manuals and user guides at all-guides.com

Operating & Maintaining the Connex500/350 3-D Printer
7–8
DOC-13000 Rev. E
Printing
Indicators TheprinterinterfacescreenchangeswhenyousendaprintjobfromJob
Managertotheprinter,andtheprinterisonline(seefigure 7‐5):
•ThemodechangesfromPre‐printtoPrinting.
•Thespecificactivitybeingperformedisshowninthe“currentactivity”
field.
•Currentjob‐printinginformationisdisplayed.
•Theprintingprogressbarisdisplayed.
•TheStopandPausebuttonsareenabled.
Whentheweightofacartridgedropsbelow100grams,thedisplayofthe
materiallevelintheprinterinterfaceisred.
Figure 7-5: Connex printer interface during printing
Current Activity
Job information
Progress bar
Pause button
Stop button
Printer mode
Job information
All manuals and user guides at all-guides.com

DOC-13000 Rev. E 7–9
Connex500/350 User Guide
Resuming Production After Printing has Stopped
Iftheprintingprocessisinterruptedforanyreason,JobManagerstops
sendingslicestotheConnexprinter.
To continue printing the model:
1. Switchtheprintertoonlinemodebyclickingtheredbuttonatthe
bottomoftheConnexprinterinterface(seefigure 7‐3onpage 3).
Thebuttonchangesfromredtogreen(seefigure 7‐4onpage 6).
2. MakesurethatthecomputernetworkconnectingtheprinterandJob
Managerserverisactive.
3. IntheJobManagerinterface,clicktheResumeicon.
4. IntheContinuefromSlicedialogboxthatappears,confirmtheslice
number,aftercheckingtheConnexprinterinterface.
Figure 7-6: Connex printer interface after interrupted printing
Figure 7-7: Continue from Slice confirmation dialog box in server
(Job Manager) interface
5. If,foranyreason,thecorrectnumberdoesnotappearinthedialog
box,enterthenumberandclickOK.
Youcannotcontinueprintingthemodelif:
•ThenumberofthelastsliceprinteddoesnotappearintheConnex
printerinterface,eveniftheservercomputerdisplaystheContinuefrom
Sliceconfirmationdialogbox.
•Therewasarelativelylonginterruptioninprinting,evenifthe“last
slice”and“continuefromslice”indicatorsarecorrect.Thepartofthe
modelalreadyprintedmaydeformorshrink,andtheremightbea
visibledifferencebetweenitandthenewlyprintedpart.Theeffectsofa
printingstoppageonamodeldependonthemodelsizeandstructure,
modelmaterialused,ambienttemperatureandthelengthofthe
stoppage.
Printer mode
Last slice
printed
All manuals and user guides at all-guides.com

Operating & Maintaining the Connex500/350 3-D Printer
7–10
DOC-13000 Rev. E
If you cannot continue printing:
1. CanceltheprintjobinJobManager.
2. Removethepartiallyprintedmodelfromthebuildtray.
3. SendthejobtotheConnexprinteragain.
Changing the Model Material
Beforeproducingmodelsusingadifferenttypeofmodelmaterialthanis
currentlyinstalled,runtheMaterialReplacementwizardtoflushtheprint
blockandfeedtubes.
To replace the model material:
1. StarttheMaterialReplacementwizardfromtheOptionsmenu.
Figure 7-8: Starting the Material Replacement wizard from the Options menu
2. Intheopeningscreen,clickNext.
3. Iftheprintercoverisnotclosed,ascreenappearsinstructingyouto
closethecover.ConfirmthatitisclosedandclickNext.
You can stop and later resume printing from either the Connex printer
interface or the Job Manager interface, since both applications are updated
when you use these commands. However, after clicking the Pausebutton in
the printer interface, you can only resume printing from the printer interface.
You should carefully plan printing models with different model materials to
avoid unnecessary waste of the material loaded in the printer. The amount
of material flushed depends on the flushing cycle chosen and if you are
replacing one or both cartridges.
All manuals and user guides at all-guides.com

DOC-13000 Rev. E 7–11
Connex500/350 User Guide
4. IntheCompartmentSelectionscreen,selectthecartridge(s)youwantto
replace,andclickNext.
Figure 7-9: Compartment Selection screen
5. Fromthedrop‐downmenu,choosethemodelmaterialyouwantto
install,andclickNext.
Figure 7-10: Material Selection screen
Note: This selection automatically affects the default material settings in
Objet Studio.
6. TheMaterialReplacementWizardcontinuesasfollows:
•If,accordingtoyourselectionsinthepreviouswizardscreens,you
arereplacingbothmodelmaterialcartridges,andtheprinterwillbe
loadedwithtwocartridgescontainingthesamemodelmaterial,the
Connexprinterflushestheentiresystem,andpreparesforprinting
inSingle‐Materialmode(seebelow).Continuewithstep8on
page 7‐13.
•If,accordingtoyourselectionsinthepreviouswizardscreens,you
arereplacingbothmodelmaterialcartridges,andtheprinterwillbe
loadedwithtwodifferentmodelmaterials,theConnexprinter
flushestheentiresystem,andpreparesforprintinginDigital‐
Materialmode(seebelow).Continuewithstep8onpage 7‐13.
•If,accordingtoyourselectionsinthepreviouswizardscreens,you
arereplacingonlyoneofthemodel‐materialcartridges,andthe
All manuals and user guides at all-guides.com
all-guides.com

Operating & Maintaining the Connex500/350 3-D Printer
7–12
DOC-13000 Rev. E
printerwillbeloadedwithcartridgescontainingtwodifferent
modelmaterials,thePrinterModeSelectionscreenappears.
Figure 7-11: Printer-mode selection
7. ChoosewhetheryouwanttoproducemodelsinSingle‐Materialmode
orinDigital‐Materialmode,andclickNext.
Continuewithstep8onpage 13.
•Single Material mode
Allfourprintheadsareusedtoprint,usingonemodelmaterial.
ThismodeisrequiredtoproducebuildtrayswiththeHighQuality
setting,andtoproducetrayswiththeHighSpeedsettingusingonly
onemodelmaterial.
•Digital Material mode
Eachofthemodelmaterialsloadedisusedintwoofthefourprintheads.
Ifonlyoneofthemodelmaterialsisrequiredforprinting,models
areproducedusingtwoprintheads.Thismakesitunnecessaryto
replacetheothermodelmaterialcartridge.
Ifmodel‐materialsubstitutionisallowed,theprinterproducestrays
withtheHighSpeedsettingusingamixtureofbothmodelmaterials
(see“ModelMaterialSubstitution”onpage 5‐37).
All manuals and user guides at all-guides.com

DOC-13000 Rev. E 7–13
Connex500/350 User Guide
8. IntheFlushingOptionsscreen(seefigure 7‐12),choosehowthoroughly
youwanttoflushthesystem.
Figure 7-12: Flushing Options screen
•Economy.Thiscyclecanbeusedwhenreplacingalight‐colored
modelmaterialwithadarkermaterial(suchasTangoBlack™or
VeroBlack™),oriftheexactcoloroftheprintedmodelsis
unimportant.
Thewizardflushesthesystemwiththeminimumamountof
materialneededtoensurethatmodelshavethemechanical
propertiesofthenewmaterial.
•Efficiency.Thisoptionisadequate,inalmostallsituations,for
printingmodelswithuniformandaccuratecolor.Itis
recommendedbecauseitcanpotentiallysave25to75percentofthe
materialusedtoflushouttheoldmaterial,comparedtotheHigh
Performancecycle.Note,however,thattheremaybetimeswhenthe
shade(color)oftheprintedmodelisslightlyaffectedbymaterial
previouslyused.
Thewizardidentifiesthefeedtubesandprintheadsrequiring
cleaning,basedonyourselectionsinthepreviousscreens,and
flushesonlythesepartsofthesystem.
•HighPerformance.Usethiscyclewhentheprintedmodelsmust
havetheexactcolorofthenewmaterial.
Thewizardthoroughlyflushesallofthefeedtubesandprintheads
neededforprinting,basedonyourselectionsintheprevious
screens.Thisisdoneevenifaselectedmaterialisalreadypresentin
thesystem,sinceitmightcontainsmallamountsofmaterial
previouslyused.
All manuals and user guides at all-guides.com

Operating & Maintaining the Connex500/350 3-D Printer
7–14
DOC-13000 Rev. E
9. ClickNext,andtakenoteofthewarningscreen.
Figure 7-13: Material Replacement warning screen
10. Tocontinue,clickNext.
11. Whenprompted,loadthenewcartridge(s).Confirmthisinthewizard
screenandclickNext.
Figure 7-14: Prompt to load new model cartridges
Afteridentifyingthenewcartridge(s),theConnexprinterbeginsfilling
theprintheadswiththenewmodelmaterial.
Figure 7-15: Material replacement: filling heads with new material
Once you start this procedure, you must complete it before you can produce
models with the Connex printer. To perform the procedure at another time,
click Cancel. If you continue (by clicking Next) and you do not complete the
procedure, you must start the Material Replacement wizard again before
producing models.
All manuals and user guides at all-guides.com

DOC-13000 Rev. E 7–15
Connex500/350 User Guide
12. Whenthefinalwizardscreenappears,makesurethatthescreen
displaysthenewly‐loadedmaterial(s).ClickDonetoclosethewizard.
Theprinter‐controlinterfaceisautomaticallyupdated,andshould
displaythenewmaterials.TheObjetStudiointerface(ontheprinter‐
serverworkstation)isalsoupdated,anddisplaysthenewmaterials.
Keeping the Connex Printer in Idle Mode
Betweenprintingjobs,theConnex500/350printercanbekeptonforupto
oneweek.Iftheprinterwillnotbeusedformorethanaweek,usethe
shutdownwizardtoautomaticallyperformtheproceduresthatmustbe
donebeforeturningofftheprinter(see“ShuttingDowntheConnex
Printer,”below).
WhentheConnex500/350printerstopsproducingmodels,theprinter
softwareautomaticallyreducesthetemperatureoftheprintheadsas
follows:
Note: The printer mode is indicated in the green field on the left of the
interface (see figures 7-3, 7-4 and 7-5 on pages 3, 6 and 8).
If,afterprintingajob,youknowthattheprinterwillnotbeusedfor10
hoursormore,youcanimmediatelyturnofftheheatingoftheprintheads
byputtingtheprinterintoIdlemode.
To put the printer into Idle mode:
¾FromtheFilemenu(intheprinterinterface)clickExit.
Note: The printer remains in Idle mode until you open the Connex printer
application and begin printing again.
CAUTION: Dispose of all material cartridges in accordance with all
applicable laws and regulations. If necessary, the cartridges can be
disassembled for recycling. If this is done, protect the person handling
the cartridges from direct exposure to uncured resins.
Time after printing Mode Change in heating of print heads
first15minutes Standby1none
next10hours Standby2heatingreduced(toroomtemp.)
after10hours Idle heatingstopped
When the printer is in Idle mode, do not turn it off. It can remain in this
mode—with the cover closed—for up to a week. For longer periods, shut
down the printer by running the Shutdown wizard (see below).
All manuals and user guides at all-guides.com

Operating & Maintaining the Connex500/350 3-D Printer
7–16
DOC-13000 Rev. E
Shutting Down the Connex Printer
YouonlyneedtoshutdowntheConnexprinterifitwillnotbeusedfora
weekormore.Otherwise,theprintercanremainon,inIdlemode.To
properlyshutdown,theprinterneedstoperformseveralprocesses.These
arecontrolledbytheShutdownwizard.Donotattempttoshutdownthe
printerbysimplyclosingthecomputerinterface(theprinter‐control
application),andneverdisconnectpowertotheprinterbefore
completingthiswizard.
Dependingonthelengthoftimetheprinterwillnotbeused,youcan
choosebetweenashortshutdownprocedure,andamorethorough
procedure.
•Upto10days:Thewizardemptiestheprintblockofmodeland
supportmaterial,topreventleaks.Thistakesabout10minutes.
•Morethan10days:Thewizardemptiestheprintblock,thenflushes
thesystemwithcleaningfluid.Thistakesupto35minutes,andyou
mustbepresenttoloadcleaning‐fluidcartridgeswheninstructed.
To run the Connex Shutdown Wizard:
1. SelectShutdown fromtheOptionsmenu,orpressF8.
Figure 7-16: Shutdown wizard, opening dialog box
2. Intheopeningwizardscreen,clickNext.
3. Choosetheappropriateoptionforthelengthoftimethattheprinter
willnotbeused—lessormorethantendays.
Note: Before selecting More than 10 days, make sure that cleaning-fluid
cartridges are available.
4. Inthenextscreen,verifythatthetrayisemptyandclickNext.
All manuals and user guides at all-guides.com
all-guides.com

DOC-13000 Rev. E 7–17
Connex500/350 User Guide
Theshutdownprocedurebegins.
Figure 7-17: Shutdown progress screen
5. Whenthefinalwizardscreenappears,closetheprinter‐control
applicationandshutdownthebuilt‐incomputer.
Figure 7-18: Final Shutdown Wizard screen
6. Aftertheprintercomputershutsdown,turnoffthemainpowerswitch
(atthebackoftheprinter)(seefigure 7‐2onpage 2).
All manuals and user guides at all-guides.com

Operating & Maintaining the Connex500/350 3-D Printer
7–18
DOC-13000 Rev. E
Maintaining the Connex Printer
Theperformanceofroutinemaintenancetasksisessentialforgetting
satisfactoryresultsfromConnex3‐Dprinters.Performthetasksat
specifiedintervalsforoptimumperformance.
Routine
Maintenance
Schedule
Frequency Task For More Information
Daily,beforeprinting Cleantheprintheads. See“CleaningthePrint
Heads”onpage 7‐19.
WeeklyCleanthebuildtrayand
thesurroundingarea.
Weekly PerformthePatterntest. See“PatternTest”on
page 7‐21.
Weekly Cleanandinspectthe
wiper. See“Cleaningand
ReplacingtheWiper”
onpage 7‐23.
Weekly RestarttheConnex
printercomputerand
theservercomputer.
Weekly Cleantherollerwaste
collector. See“CleaningtheRoller
WasteCollectorand
InspectingtheRoller
Scraper(Knife)”on
page 7‐25.
Every200hoursof
printing(Areminder
messageappears.)
TesttheUVlamps. See“Testingand
CalibratingtheUV
Lamps”onpage 49.
Monthly,andafter
replacingprintheads Checkthealignmentof
theprintheads. See“
AligningthePrint
Heads”onpage 7‐30.
MonthlyCalibratetheloadcells. See“Calibratingthe
LoadCells”on
page 7‐51.
Monthly Inspecttheexhaust
system(duct,fan,
connections).
Every2000hoursof
printing,oronceayear
Preventivemaintenance
visitbyauthorized
serviceengineer.
ContactyourObjet
supportcenter.
All manuals and user guides at all-guides.com

DOC-13000 Rev. E 7–19
Connex500/350 User Guide
Cleaning the
Print Heads Periodicinspectionandcleaningoftheorificeplatesonthebottomofthe
printblockensuresthattheprintnozzlesarenotclogged.Awizardguides
youthroughtheprocedure,andadjustscomponentsoftheConnexprinter
toenableyoutoperformit.Thisproceduretakesabout20minutes,and
shouldbedoneatthebeginningoftheworkdayorbeforeabigprinting
job.
To clean the print heads:
1. Prepare—
•isopropanol(IPA—isopropylalcohol)orethanol(ethylalcohol)
•disposablecleaninggloves
•anObjet‐suppliedcleaningclothorequivalent
•amirror
2. StarttheHeadsCleaningwizardfromtheOptionsmenuoftheprinter
interface(seefigure 7‐26onpage 23).
3. Followtheinstructionsonthewizardscreens,andselectthecheck
boxestoconfirmthat:
•youhavecheckedthatthetrayisempty.
•youhaveclosedthecover.
Figure 7-19: Head cleaning procedure—wizard screen
4. ClickNext.
Theprinterpreparesforyoutocleantheprintheads.
All manuals and user guides at all-guides.com

Operating & Maintaining the Connex500/350 3-D Printer
7–20
DOC-13000 Rev. E
5. Whenthefollowingscreenappears,openthecover.
Figure 7-20: Head cleaning wizard—steps 5–10
6. Placethemirroronthebuildtray.
7. Putonthegloves.
8. Soakthecleaningclothwiththecleaningfluid.
9. Cleantheorificeplates,withaback‐and‐forthmotion(seefigure 7‐21).
Usethemirrortomakesurethatyouhaveremovedalloftheresidue
material.
Figure 7-21: Cleaning the heads
10. Whenyouhavefinishedcleaning,selecttheconfirmationcheckboxin
thewizardscreen(seefigure 7‐20)andclickNext.
WARNING: The print head orifice plates (bottom surface) may be hot.
Do not touch them with your bare hands, and proceed with caution.
It is recommended that you use this opportunity to also clean the roller and
the UV-lamp lens (to the right of the print heads).
All manuals and user guides at all-guides.com
This manual suits for next models
1
Table of contents
Other Objet 3D Printer manuals