Stratasys J750 User manual

DOC-08040 Rev. E

3D Printing System

User Guide

J750

Copyright

This documentation contains proprietary information of Stratasys Ltd. This information is supplied solely to assist authorized

users of Stratasys J750 3D printing systems. No part of this document may be used for other purposes.

The specifications on which this document is based are subject to change without notice.

Trademarks

Stratasys, Objet, FullCure, PolyJet, J750, Connex, GrabCAD Print, GrabCAD PolyJet Server are trademarks of Stratasys Ltd.

and/or its subsidiaries or affiliates and may be registered in certain jurisdictions. All other product names and trademarks are

the property of their respective owners..

FCC Compliance

The equipment referred to in this guide has been tested and found to comply with the limits for a Class A device pursuant to

part 15 of the FCC rules. These limits provide reasonable protection against harmful interference when the equipment is

operated in a commercial environment. Stratasys 3D printing systems generate, use and can radiate radio-frequency energy

and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio

communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case the

user will be required to correct the interference at his own expense.

The 3D printer referred to in this guide contains a transmitter module, FCC ID YH6-DUPCAB.

NOTE: Stratasys is not responsible for radio or TV interference caused by unauthorized modification to this equipment.

Changes or modifications not expressly approved by the manufacturer could void the user’s authority to operate the equipment.

Equipment Recycling

In the European Union, this symbol indicates that when the last user wishes to discard a product, it must be sent to appropriate

facilities for recovery and recycling. For information about proper disposal, check your purchase contract, or contact the

supplier of the equipment.

Limitation of Liability

The product, software or services are being provided on an “as is” and “as available” basis. Except as may be stated

specifically in your contract, Stratasys Ltd. expressly disclaims all warranties of any kind, whether express or implied,

including, but not limited to, any implied warranties of merchantability, fitness for a particular purpose and non-infringement.

You understand and agree that Stratasys Ltd. shall not be liable for any direct, indirect, incidental, special, consequential or

exemplary damages, including but not limited to, damages for loss of profits, goodwill, use, data or other intangible losses (even

if Stratasys has been advised of the possibility of such damages), resulting from: (i) the use or the inability to use the product or

software; (ii) the cost of procurement of substitute goods and services resulting from any products, goods, data, software,

information or services purchased; (iii) unauthorized access to or alteration of your products, software or data; (iv) statements

or conduct of any third party; (v) any other matter relating to the product, software, or services.

The text and drawings herein are for illustration and reference only. The specifications on which they are based are subject to

change. Stratasys Ltd. may, at any time and without notice, make changes to this document. Stratasys Ltd., for itself and on

behalf of its subsidiaries, assumes no liability for technical or editorial errors or omissions made herein, and shall not be liable

for incidental, consequential, indirect, or special damages, including, without limitation, loss of use, loss or alteration of data,

delays, or lost profits or savings arising from the use of this document.

DOC-08040 Rev. E

Patents

This product is covered by one or more of the following U.S. patents:

6,259,962

6,569,373

6,658,314

7,209,797

7,225,045

7,300,619

7,364,686

7,369,915

7,500,846

7,604,768

7,658,976

7,725,209

7,896,639

7,958,841

7,962,237

7,991,498

7,996,101

8,219,234

8,278,866

8,323,017

8,469,692

8,781,615

8,865,047

8,932,511

9,017,589

9,020,627

9,031,680

9,227,365

Stratasys Ltd.

www.stratasys.com



DOC-08040

Revision E

December 2017

DOC-08040 Rev. E

Contents

1 AboutThisGuide

UsingThisGuide 1-2

ForMoreInformation 1-2

TermsUsedinThisGuide 1-3

2 Safety

SafetyFeatures 2-2

SymbolsandWarningLabels 2-3

SafetyGuidelines 2-4

PrinterInstallation 2-4

PrinterOperation 2-4

UVRadiation 2-4

PrinterMaintenance 2-5

ModelandSupportMaterials 2-5

UVLamps 2-6

FirstAidforWorkingwithPrintingMaterials 2-7

ContactwithSkin 2-7

ContactwithEyes 2-7

Ingestion 2-7

Inhalation 2-7

WasteDisposal 2-8

3 IntroducingtheStratasysJ7503DPrintingSystem

WorkConfigurations 3-3

SourceFiles 3-3

PrintingMaterials 3-4

Storage 3-4

ShelfLife 3-4

ExposuretoLight 3-4

SafetyConsiderations 3-5

Disposal 3-5

WorkEnvironment 3-5

WorkstationRequirements 3-5

4 OperatingandMaintainingtheStratasysJ7503DPrinter

StartingthePrinter 4-2

LoadingModelandSupportCartridges 4-4

ProducingModels 4-5

PreparingthePrinter 4-5

StartingPrinting 4-6

PrinterInterfaceColorKey 4-7

PrintingIndicators 4-8

ResumingProductionAfterPrintinghasStopped 4-9

ChangingthePrintingMaterial 4-11

ChangingModelMaterialsWithoutFlushing 4-16

AdvancedSettings 4-18

KeepingthePrinterinIdleMode 4-21

DOC-08040 Rev. E iii

ShuttingDownthePrinter 4-22

MaintainingthePrinter 4-25

RoutineMaintenanceSchedule 4-25

MaintenanceCounters 4-26

UVLampCheck 4-29

PatternTest 4-29

BackingupthePrinterConfiguration 4-31

ImprovingPrintQuality 4-32

CleaningthePrintHeads,RollerandWiper 4-32

CleaningtheRollerWasteCollectorandInspectingtheRollerScraper 4-36

ReplacingtheRollerScraper 4-39

AligningthePrintHeads 4-41

CleaningthePrint-HeadSplashShield 4-45

Optimizing(Calibrating)PrintHeads 4-47

ReplacingPrintHeads 4-54

TestingandCalibratingtheUVLamps 4-64

CalibratingtheLoadCells 4-71

FlushingthePrint-blockHeater 4-72

ReplacingtheWaste-PumpTubes 4-76

ReplacingtheVeroPureWhiteMaterialFilters 4-80

ReplacingtheOdorFilter 4-86

ReplacingtheUVLamps 4-86

Built-inTests 4-92

ReplacingtheWasteContainer 4-97

CleaningtheExteriorPanels 4-99

5 HandlingPrintedModels

RemovingModelsAfterPrinting 5-2

RemovingtheSupportMaterial 5-2

Post-PrintingTreatmentforModelsMadewithVeroClear 5-5

Photo-BleachingInstructions 5-5

StoringModels 5-6

DOC-08040 Rev. E iv

DOC-08040 Rev. E 1-1

1

About This Guide

UsingThisGuide 1-2

ForMoreInformation 1-2

TermsUsedinThisGuide 1-3

Stratasys J750 User Guide 1 About This Guide

DOC-08040 Rev. E 1-2

Using This Guide

Thisuserguideprovidesinstructionsforinstalling,operatingandmaintaining

J7503Dprintingsystems.Itexplainshowtousefeatures,andprovides

practicalexamplestoguideyouasyouusethesystem.

ThetextandfiguresinthisguidearebasedontheJ7503Dprinter,software

version85.1.0.

Thisguideassumesthat—

•allthehardware,software,andnetworkcomponentsofyourJ750system

areinstalled,configured,andoperatingcorrectly.

•theoperatorhasaworkingknowledgeoftheWindows

®

PCplatform.

For More Information

Visitwww.stratasys.comtodownloadadditionaldocumentsforthisprinter,

includingdocumentsinotherlanguages.Alsoavailableonthissite:details

aboutconsumablesandsupportcontacts.

Ifyouhaveanyquestionsorcommentsaboutthewayinformationis

presentedinthisdocument,orifyouhaveanysuggestionsforfutureeditions,

pleasesendamessagetoc-support@stratasys.com.

Stratasys J750 User Guide 1 About This Guide

DOC-08040 Rev. E 1-3

Terms Used in This Guide

Build tray

In the print preparation application:Thesurfacedisplayedon

thescreenthatrepresentstheactualbuildtrayintheprinter.

In the printer:Thesurfaceuponwhichmodelsareproduced.

Cleaning fluid Cleanserforflushingmaterialfeedtubesandtheprintingblock,

usedtocompletelyremoveModelandSupportmaterialfrom

thesystembeforeloadinganothertypeofmaterialinthe

printerandbeforelong-termshutdown.Thecleaningfluidis

suppliedinmaterialcartridges.

Client/user workstation Theworkstationonwhichsoftwareisinstalledforpreparing

buildtraysforproductiononPolyJetprinters.(Thereisnolimit

tothenumberofclientworkstations.)

Connex™ Thetechnologyofprintingmodelsbyjettingmultiplematerials

simultaneouslyfromtheprintheads.Thistechnologyenables

J750printerstoprintinDigitalMaterialmode.

Digital Material Combinationsofmodelmaterialsfabricatedintheprinterfrom

thebasicmodelmaterialsinstalled.

Digital Material Mode Theprintermodeusedtoprintajobusingtwoormore

differentmodelmaterials.(Thismodecanalsobeusedto

eliminatetheneedforperformingtheMaterialReplacement

procedurewhenprintingwithasinglemodelmaterial.)

GrabCAD Print Asoftwareapplicationforpreparingprintjobsonavarietyof

3Dprinters,includingtheStratasysJ750printer.

Mixed part Modelswhosepartsareprintedusingmorethanonemodel

material.

Mixed tray Abuildtraycontainingobjects,eachofwhichisdesignedtobe

printedusingadifferentmodelmaterial.

Model material Materialusedforbuildingmodels.



Printer computer ThecomputerinsidetheJ750printerthatoperatesit.

Printer interface

TheGUI(graphicaluserinterface)usedforcontrollingthe

J750printer.

Printer software,

printer-control

application

SoftwarerunningonthecomputerinsidetheJ750printer,that

controlsallprinteroperations.



Resin Thebasesubstancefromwhichphotopolymerprinting

materialsaremadeforuseinStratasysPolyJetprinters.

STL Afileusedforprinting3Dmodels.



Support material Materialusedforsupportingthestructureofmodelsduring

production.

DOC-08040 Rev. E 2-1

2

Safety

SafetyFeatures 2-2

SymbolsandWarningLabels 2-3

SafetyGuidelines 2-4

PrinterInstallation 2-4

PrinterOperation 2-4

UVRadiation 2-4

PrinterMaintenance 2-5

ModelandSupportMaterials 2-5

UVLamps 2-6

FirstAidforWorkingwithPrintingMaterials 2-7

ContactwithSkin 2-7

ContactwithEyes 2-7

Ingestion 2-7

Inhalation 2-7

WasteDisposal 2-8

Stratasys J750 User Guide 2 Safety

DOC-08040 Rev. E 2-2

Safety Features

Stratasys3DprintersaredesignedtocomplywithCEandFCC

standards.Theyareequippedwiththefollowingsafetyfeatures:

Cover Interlock Switch

ThepowersuppliedtotheUVlamp,thetrayheaterandthe

motionmotorsisturnedoffwhenthecoverisopened.

Warning

Do not defeat (override) the interlock switch. Doing so could

result in serious personal injury. If the interlock switch does not

function correctly, do not use the printer, and contact your service

provider.

Safety Lock

Thecoverislockedwhiletheprinterisworking.Ifyoudo

managetoliftit,theUVlampsandthemotionmotorsturnoff.

Warning

Do not defeat (override) the safety lock. Doing so could result

in serious personal injury. If the safety lock does not function

correctly, do not use the printer, and contact your service provider.

UV Screening

ThetransparentsectionofthecoverblocksharmfulUV

radiation,allowingtheoperatortoviewthemodelasitisbeing

made.

Figure 2-1 Front view of the Stratasys J750 printer

Circuit Breaker

Thepowertotheprinteristurnedoffincaseofelectrical

overcurrent.

Note: Thecircuitbreakerisonlyaccessibletoservice

personnel.

UV-Lamp Overheating

Protection

ThepowersuppliedtotheUVlampandthemotionmotorsis

turnedoffifthetemperaturearoundthelampreaches90°C

(194°F).AlabelontheUV-lampcoverindicatesifthe

temperaturehasexceeded65°C(150°F).



Stratasys J750 User Guide 2 Safety

DOC-08040 Rev. E 2-3

Grounded Chassis Thechassisoftheprinterisgrounded,topreventelectrical

shock.

Note:Thepoweroutletmustbeproperlygrounded,in

accordancewiththelocalelectriccode,toprovidethis

protection.

If the J750 3D printing system is not used as specified in this guide, the safety

features may not provide adequate protection.

Symbols and Warning Labels

ThisfollowingtableliststhewarninglabelslocatedonorinJ750printers.

Warning Symbol Meaning Location Comments

Hazard (general) On the name plate on the

back of the printer.

Read the instructions in

this document before

operating the printer.

Hot surface On the print block. Risk of burns. Do not

touch this surface after

printing.

High voltage Near the UV lamp

connectors.

Near the power-supply

enclosures.

Risk of electric shock.

Ultraviolet

radiation

Near the UV lamps. Risk of injury from

ultraviolet radiation.

Stratasys J750 User Guide 2 Safety

DOC-08040 Rev. E 2-4

Safety Guidelines

Thefollowinggeneralguidelines,togetherwiththeinstructionsprovided

throughoutthisuserguide,ensureusersafetywhileoperatingand

maintainingthesystem.If the system is not operated as specified,

the user's safety may be compromised.

Printer

Installation

➢ Installationandremovaloftheprintershouldonlybedonebyqualified

servicepersonnel.

➢ Connecttheprinter(andtheUPSunit)totheelectricoutletusingapower

cordthatissafety-certified.

➢ Theelectricoutletshouldbeeasilyaccessible,neartheprinter.

➢ Neverconnectthepowerplugtoanoutletthatdoesnothaveaground

(earth)wire,andneverdisconnecttheground.Doingsomightexposethe

operatortoseriousdangerfromelectricshock.

➢ ThefollowingsafetystatementisfollowedbytranslationstoFinish,

Norwegian,SwedishandDanish,asrequiredbylocalregulations:

“Themachinemustbeconnectedtoagroundedpoweroutlet.”

❒ FI:Laiteonliitettäväsuojakoskettimillavarustettuunpistorasiaan.

❒ NO:Apparatetmåtilkoplesjordetstikkontakt.

❒ SE:Apparatenskallanslutastilljordatuttag.

❒ DK:Apparatetsstikpropskaltilsluttesenstikkontaktmedjord,som

giverforbindelsetilstikproppensjord.

➢ Leaveaminimumof15centimeters(6inches)betweenventilation

openingsandwallsorotherobjects.

Printer

Operation

➢ TheprintershouldonlybeoperatedbypersonstrainedbyaStratasys

customer-supportrepresentative.

➢ Allpersonsoperatingormaintainingtheprintershouldknowthelocation

offirstaidandemergencyequipmentandhowtouseit.Never block

access to this equipment.

➢ Keepfingersandotherbodypartsclearoftheprintercoverwhenclosing

it.

➢ Neverattempttoopentheprintercoverwhileitisworking.

➢ Neveroverridetheinterlocksafetyswitch.

➢ Iftheinterlocksafetyswitcheverfails,do not use the printer.

➢ Severalpartsoftheprinterremainextremelyhotevenafterithasstopped

operating.AvoidtouchingtheUVlampsandtheprintblock.

UV Radiation

TheUVlampsusedintheprinteremitdangerousradiation.

➢ IftheUVlampsremainonwhentheprinterisopen,donotstaredirectly

attheUVlight.ShutdowntheprinterandcallyourStratasysservice

provider.

Stratasys J750 User Guide 2 Safety

DOC-08040 Rev. E 2-5

Printer

Maintenance

➢ Serviceoperationsshouldbeperformedonlybyqualifiedpersonnelwho

havebeeninstructedinrelevantsafetyprecautions.

➢ Notifyco-workersandthosewhohaveaccesstotheJ750systembefore

beginningnon-routineandhazardouswork.

Report any potential dangers and safety-related accidents to your safety

officer or to other appropriate authorities.

Model and

Support

Materials

ModelandSupportmaterialsaremadeofchemicalsubstances.Although

precautionsmustbetakenwhenhandlingthesematerialsdirectly,allModel

andSupportmaterialsusedbytheJ750systemarehandledinsealed

cartridges.Normally,operatorsoftheprintershouldneverbedirectlyexposed

tohazardousmaterials.Intheunlikelyeventofaleakorspill,followthe

instructionsthatareincludedwiththematerialcartridgesused.

➢ StoreModelandSupportmaterialsindoors,inadryareawithadequate

ventilation,between15-25degreesCelsius(59-77degreesFahrenheit).

Neverexposethemtoflames,heat,sparks,ordirectsunlight.

➢ KeepModelandSupportmaterialsawayfromareaswherefoodanddrink

arestored,preparedandconsumed.

➢ Uncuredprintingmaterialisconsideredahazardoussubstance,requiring

certainprecautionswhendirectlyhandlingit.Topreventskinirritation,

wearneopreneornitrile gloves.IfthereisanychancethatModeland

Supportmaterialsmightsplashintotheeyes,wearsafetygoggles.

Prolongeddirectcontactwithprintingmaterialscancauseanallergic

reaction.

➢ WhenhandlingUV-curedmodelsthatmaynotbecompletelycuredonthe

surface,commonlatexglovesareadequate.

➢ Topreventrespiratoryirritation,ventilateareaswhereModelandSupport

materialsareused.Iftheprinterisnotequippedwithanexhaustduct,the

roomventilationsystemshouldreplacetheairatleast20timesperhour.

➢ CleanupModel-materialandSupport-materialspillswithdisposable

towelsorotherabsorbent,non-reusablematerial,suchassawdustor

activatedcharcoal.Rinsethespillareawithdenaturedorisopropylalcohol

(IPA),followedbysoapandwater.Disposeoftheabsorbentmaterialin

accordancewithlocalregulations.

➢ Donotwashcontaminatedclothingathome;clothingshouldbe

professionallylaundered.

➢ Disposeofcontaminatedshoes,beltsandotherleatheritemsin

accordancewithanyapplicableregulations.Absorbedprintingmaterial

mayre-exposetheuserwhentheseitemsareworn.

Stratasys J750 User Guide 2 Safety

DOC-08040 Rev. E 2-6

UV Lamps

UVlampsusedbytheprintertocureprintingmaterialscontainasmall

amountofmercury.Intheunlikelyeventoflampbreakage,avoidinhaling

mercuryvapor,andventilatetheroom.Ifthelampruptures(breaks)during

operation,leavetheroomandventilateitthoroughlyforabout30minutes.

Useprotectiveglovestopreventcontactwithmercuryandotherlamp

components.Carefullyremovespilledmercurywithamethodthatprevents

thegenerationofmercuryvapor,suchasasyringe,packingtapeorpaper.

Placethebrokenlamp,mercuryandcontaminatedmaterialsinanair-tight,

non-metalliccontainer.Disposeofthecontainerinaccordancewith

applicableregulations.

Stratasys J750 User Guide 2 Safety

DOC-08040 Rev. E 2-7

First Aid for Working with Printing Materials

Ingeneral,trytoavoiddirectcontactwithuncuredprintingmaterial.Ifskin

oreyescomeintocontactwithit,washtheareaimmediatelyandthoroughly

withwater,andfollowthesefirst-aidinstructions.

The Material Safety Data Sheet (MSDS) that accompanies printing materials

contains important safety information. Keep this in an accessible place where

these materials are used and stored.

Contact with

Skin

Ifuncuredprintingmaterialcomesincontactwithskin,washtheaffected

areaimmediatelyandthoroughlywithsoapandcoolwater,thenremove

contaminatedclothing.Payparticularattentiontoflushingthehair,ears,

noseandotherpartsofthebodythatarenoteasilycleaned.

➢ Usecoolwatertopreventskinporesfromopening,sothattheliquid

materialdoesnoteasilypenetratetheskin.

➢ Donotusesolventstocleanskin.

➢ Iflargeareasofskinhavebeenexposed,orifprolongedcontactresultsin

blisters,seekmedicalattention.Inanycase,ifirritationpersists,seek

medicalattention.

➢ Avoidtheaccidentaltransferofprintingmaterialfromthehandstoother

areasofthebody,especiallytotheeyes.

➢ Ifprotectivecreamwasused,donotreapplyituntiltheskinhasbeen

completelycleansed.

Contact with

Eyes

Ifuncuredprintingmaterialcomesincontactwiththeeyes,flush

immediatelywithlargeamountsofwaterfor15minutesandseekmedical

attention.

➢ Avoidsunlight,fluorescentlight,andothersourcesofultravioletradiation.



Wearingcontactlenseswhenhandlingliquidprintingmaterialsisnot

recommended.Iftheliquidsplashesintotheeyeswhencontactlensesare

worn,immediatelyremovethelensesandflushtheeyeswithwater.

➢ Cleananddisinfectthecontaminatedlenses.

➢ Donotwearcontactlensesuntileyeirritationdisappears.

Ingestion

Ifprintingmaterialisswallowed,refertotheinstructionsincludedwiththe

cartridge.Seek medical attention immediately.

Inhalation

Vaporsfromprintingmaterialscanbeirritatingtotherespiratorysystem.If

respiratoryirritationoccurs,exposethevictimtofreshairimmediately.

➢ Ifthevictimhasstoppedbreathing,performartificialrespirationor

cardiopulmonaryresuscitation.

➢ Seekmedicalattentionimmediately.

➢ Keepthevictimwarmbutnothot.

➢ Neverfeedanythingtoanunconsciousperson.

➢ Oxygenshouldbeadministeredbyauthorizedpersonnelonly.

Stratasys J750 User Guide 2 Safety

DOC-08040 Rev. E 2-8

Waste Disposal

Fullycuredprintedmodelscanbedisposedofasordinaryofficetrash.

However,specialcareisrequiredwhenhandlingprinterwaste(uncured

printingmaterial).

Printing

Materials

➢ WhenremovingthewastecontainerfromtheJ750printer,wear

neopreneornitrilegloves.

➢ Topreventliquidwastefromsplashingintotheeyes,wearsafetygoggles.

➢ LiquidwastefromtheJ750printerisclassifiedashazardousindustrial

waste.Therefore,printing-materialwastemustbepackagedanddisposed

ofinamannerthatpreventshumancontactwithitandcontaminationof

watersources.

➢ EmptyModel-materialandSupport-materialcartridgescontainresidueof

theircontents.Someleakageofthisresiduemayoccurthroughthebroken

cartridgeseal.Therefore,handleandstoreemptycartridgeswithcare.

➢ Donotattempttoreuseemptycartridges,anddonotpuncturethem.

➢ Disposeofusedcartridgesandwastecontainersinaccordancewithlocal

regulations.

➢ Discardcontaminatedclothing,shoes,emptycontainers,etc.,in

accordancewithanyapplicableregulations.

UV Lamps

UVlampsusedbytheprintertocureprintingmaterialscontainasmall

amountofmercury,andareconsidered“UniversalWaste.”Recycleordiscard

usedlampsinaccordancewithapplicableregulations.

Brokenlamps:

Afterventilatingthearea,useprotectiveglovesandcarefullyremovespilled

mercurywithamethodthatpreventsthegenerationofmercuryvapor,such

asasyringe,packingtapeorpaper.Placethebrokenlamp,mercuryand

contaminatedmaterialsinanair-tight,non-metalliccontainer.Disposeofthe

containerinaccordancewithapplicableregulations.

DOC-08040 Rev. E 3-1

3

Introducing the Stratasys J750

3D Printing System

WorkConfigurations 3-3

SourceFiles 3-3

PrintingMaterials 3-4

Storage 3-4

ShelfLife 3-4

ExposuretoLight 3-4

SafetyConsiderations 3-5

Disposal 3-5

WorkEnvironment 3-5

WorkstationRequirements 3-5



Stratasys J750 User Guide 3 Introducing the Stratasys J750 3D Printing System

DOC-08040 Rev. E 3-2



Youcanachievethefollowingresultswhenprinting3DmodelsontheJ750

printer:

•Youcanstreamlineandeconomizetheprocessofproducingmodels.

❒ Printingmodelsmadefromdifferentmaterialsonthesamebuildtray

(“mixedtray”),inthesameprintjob,eliminatesthetime-consuming

needandexpenseofloadinganothermaterial,flushingthesystem,and

sendingaseparatejobtobeprinted.

❒ AlternatingprintjobsthatuseanyoftheModelmaterials(ormaterial

combinations)loadedsimilarlydoesnotrequirematerial

replacement—again,savingtimeandexpense.

•Youcanprintobjectswithcombinationsofbasicmaterials(digital

materials),enablingyoutochoosefromawiderangeofpossible

mechanicalproperties—fromflexibletorigid.

•Youcanprintparts(shells)ofthesamemodel—simultaneously—with

differentmaterials(ormaterialcombinations)

•Youcanprintobjectsthathavea“coating”madefromadifferentmaterial

thanthemainpartoftheobject.

•Youcanmixanycombinationofbasematerials,resultinginanextremely

widerangeofavailablecolors.

•Ifyoudesignatecolorsforpartsofamodelatthedesignstage(withCAD

software)andsavethemodelasaVRMLfile,thepartsareautomatically

assignedappropriatematerialcombinationsinGrabCADPrintforprinting

themodelwiththedesiredcolors.

•YoucanchoosethepreferredSupportmaterialforyourneeds.

GrabCADPrintsupportsmany3DCADfileformats,eliminatingtheneedto

convertthemtoSTLfiles.GrabCADPrintalsoautomaticallyrepairsdamaged

filesbeforesendingthemtotheprinter.

Stratasys J750 User Guide 3 Introducing the Stratasys J750 3D Printing System

DOC-08040 Rev. E 3-3

Work Configurations

TheStratasysJ7503Dprintingsystemcanbesetupasasingle-stationsystem

orasamulti-stationsystem.Whenconnectedtoalocalcomputernetwork,

thesystemcanservemultipleusers.Insuchconfigurations,eachuser(client)

preparesfilesforproduction.Asoftwareservice,installedontheprinter

computer,processesjobsandcontrolstheprinting.

Figure3-1showstheprintersetupinamulti-clientconfiguration.

Figure 3-1 Multi-client network configuration

Source Files

J750printingsystemsproducethree-dimensionalmodelsdesignedwithmost

CADtoolsandsomeother3Dapplications.

GrabCADPrintsupportsSTLand,VRMLfiles,and,inaddition,nativeCAD

formatsfromtheseprograms:Creo,SOLIDWORKS,NX,CATIAand

Inventor.ToseethecompletelistoffileformatssupportedbyGrabCAD

Print,goto:help.grabcad.com/print/file-formats.

J750systemsfeaturethecapabilityofproducingdifferenttypesofmodelfiles

simultaneously.

Stratasys J750 User Guide 3 Introducing the Stratasys J750 3D Printing System

DOC-08040 Rev. E 3-4

Printing Materials

J750printersproducemodelsbyjettingthinlayersofprintingmaterialson

thebuildtray,untilthecompletemodelisformed.Twotypesofmaterialare

usedinthisprocess:

•Modelmaterial—whichmakesupthefinishedmodel

•Supportmaterial—whichfillsgapsandspacesinthemodelduring

printing,andisremovedafterprinting

For up-to-date information about PolyJet printing materials and their

properties, go to www.stratasys.com/materials/polyjet.

Storage

MaterialsusedforprintingmodelswithJ750printersaremadeofresins,

whicharecomposedofreactivemonomersandoligomers.Althoughprinting

materialsaresuppliedinsealed,UV-proofcartridges,caremustbetaken

whenstoringandhandlingthem.Followtheseguidelinestoprotectoperators

andtheenvironment,andtoensureoptimumresults.

•Toensureproductstability,donotallowthesematerialstocomeinto

contactwithmetal.Plasticsmadefrommonomer-solublesubstances(such

aspolystyreneorpolyvinylchloride)arenotsuitableforstoringPolyJet

printingmaterials.

•Whennotinuse,keepmaterialcartridgestightlysealedtoprevent

contamination,theeffectsofexposuretoUVradiation,andaccidental

spillage.

•Storematerialcartridgesindoors,inadryareawithadequateventilation,

between15–25degreesCelsius(59-77degreesFahrenheit).Ifexposedto

heatorflames,cartridgesmightburstorignite.

•Signsofprematurepolymerizationinmaterialcartridgesincludebulging,

leaking,theemissionofheat,andunusualodor.Exposuretoheatcan

causeresintogelinthecartridges.

•Makesurethatmaterialcartridgesarestoredinaccordancewithalllocal

regulationsandotherapplicablerequirements.

Shelf Life

Materialsusedforproducingmodelshavealimitedshelflife.Theexpirydate

onthelabelisvalidwhenproperlystoredinanundamaged,unopened

cartridge.Alwaysrotateyourstock,sothatthecartridgewiththeearliestdate

isusedfirst.

Exposure to

Light

Ifprintingmaterialsarenotintheirsealedcartridges,makesuretoshield

themfromsunlightandothersourcesofUVradiation,suchasfluorescent

andmercury-vaporlights.ExposuretoUVradiationcausesanincreasein

viscosityand,eventually,solidification.

Stratasys J750 User manual

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