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Handling Printed Models

8–2

 

DOC-13000 Rev. E

Removing Models After Printing

After

 

printing

 

models,

 

you

 

should

 

allow

 

them

 

to

 

cool

 

as

 

much

 

as

 

possible

 

before

 

handling

 

them.

 

If

 

additional

 

models

 

do

 

not

 

have

 

to

 

be

 

produced

 

on

 

the

 

Connex

 

printer,

 

it

 

is

 

best

 

to

 

let

 

the

 

printed

 

models

 

cool

 

in

 

the

 

printer,

 

with

 

the

 

cover

 

closed,

 

as

 

long

 

as

 

possible.

 

If the Connex printer must be used to produce additional models as 
soon as possible:

1. Let

 

the

 

printed

 

models

 

cool

 

on

 

the

 

build

 

tray

 

for

 

at

 

least

 

10

 

minutes.

 

2. Very

 

carefully,

 

remove

 

the

 

models

 

from

 

the

 

tray

 

with

 

a

 

scraper

 

or

 

spatula

 

(supplied

 

in

 

the

 

tool

 

kit),

 

taking

 

care

 

not

 

to

 

pry

 

or

 

bend

 

the

 

model.

3. Place

 

the

 

models

 

on

 

a

 

flat

 

surface,

 

and

 

cover

 

them

 

with

 

a

 

cardboard

 

box

 

or

 

paper

 

hood.

This

 

allows

 

the

 

models

 

to

 

cool

 

slowly

 

and

 

evenly.

4. Let

 

the

 

models

 

cool

 

for

 

several

 

hours.

Removing the Support Material

After

 

printed

 

models

 

have

 

cooled,

 

the

 

support

 

material

 

must

 

be

 

removed.

 

This

 

can

 

be

 

done

 

by

 

different

 

methods,

 

depending

 

on

 

the

 

size

 

of

 

the

 

model,

 

how

 

delicate

 

it

 

is,

 

the

 

amount

 

and

 

location

 

of

 

the

 

support

 

material,

 

and

 

other

 

factors.

 

Use

 

the

 

following

 

methods

 

as

 

a

 

guide,

 

and

 

adapt

 

them

 

(or

 

a

 

combination

 

of

 

them)

 

for

 

finishing

 

the

 

models

 

you

 

are

 

handling.

Removing Excess Support Material by Hand

While

 

wearing

 

protective

 

gloves,

 

break

 

away

 

excess

 

support

 

material

 

on

 

the

 

outside

 

of

 

the

 

model.

 

For

 

delicate

 

models,

 

use

 

a

 

toothpick,

 

pin

 

or

 

small

 

brush

 

after

 

dipping

 

the

 

model

 

in

 

water.

Removing Support Material with Water Pressure

For

 

most

 

models,

 

the

 

most

 

efficient

 

way

 

to

 

remove

 

support

 

material

 

is

 

by

 

using

 

a

 

high

pressure

 

water

 

jet.

 

One

 

suitable

 

system

 

is

 

the

 

Balco

 

WaterJet

 

cleaning

 

unit,

 

shown

 

in

 

figure 8

1

 

on

 

page 8

3.

 

This

 

device

 

is

 

marketed

 

by

 

Objet.

WARNING:  

Wear protective gloves when handling printed models 

before they are washed.

Содержание Connex350

Страница 1: ...Shutting Down the Connex Printer 16 Maintaining the Connex Printer 18 Routine Maintenance Schedule 18 Cleaning the Print Heads 19 Pattern Test 21 Improving Print Quality 22 Cleaning and Replacing the...

Страница 2: ...nex printer Figure 7 2 Main power cable and switch The main power switch turns on the Connex printer which includes the built in Connex computer Printer cover Printing materials storage compartment CA...

Страница 3: ...ed 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...

Страница 4: ...t to twist or turn it 3 Load model and support cartridges into their respective compartments the model cartridge on the right and the support cartridge on the left Note that the cartridges only fit in...

Страница 5: ...e the printer mode changes from Idle to Pre print as the printer s components prepare themselves for production The print block is heated The UV lamps are powered and they warm up When printing begins...

Страница 6: ...print job You can monitor printer status indicators by switching the printer interface display To do this click the display toggle button in the printer interface screen Figure 7 4 Connex printer indi...

Страница 7: ...K Heads Vacuum The vacuum level in the system is within the acceptable range Red not suitable for printing or indicates a warning For example in figure 7 4 Waste The weight of the waste container is g...

Страница 8: ...The specific activity being performed is shown in the current activity field Current job printing information is displayed The printing progress bar is displayed The Stop and Pause buttons are enable...

Страница 9: ...6 Connex printer interface after interrupted printing Figure 7 7 Continue from Slice confirmation dialog box in server Job Manager interface 5 If for any reason the correct number does not appear in...

Страница 10: ...erial Replacement wizard from the Options menu 2 In the opening screen click Next 3 If the printer cover is not closed a screen appears instructing you to close the cover Confirm that it is closed and...

Страница 11: ...re replacing both model material cartridges and the printer will be loaded with two cartridges containing the same model material the Connex printer flushes the entire system and prepares for printing...

Страница 12: ...using one model material This mode is required to produce build trays with the High Quality setting and to produce trays with the High Speed setting using only one model material Digital Material mod...

Страница 13: ...r It is recommended because it can potentially save 25 to 75 percent of the material used to flush out the old material compared to the High Performance cycle Note however that there may be times when...

Страница 14: ...ad new model cartridges After identifying the new cartridge s the Connex printer begins filling the print heads with the new model material Figure 7 15 Material replacement filling heads with new mate...

Страница 15: ...field on the left of the interface see figures 7 3 7 4 and 7 5 on pages 3 6 and 8 If after printing a job you know that the printer will not be used for 10 hours or more you can immediately turn off t...

Страница 16: ...hort shutdown procedure and a more thorough procedure Up to 10 days The wizard empties the print block of model and support material to prevent leaks This takes about 10 minutes More than 10 days The...

Страница 17: ...n progress screen 5 When the final wizard screen appears close the printer control application and shut down the built in computer Figure 7 18 Final Shutdown Wizard screen 6 After the printer computer...

Страница 18: ...the wiper See Cleaning and Replacing the Wiper on page 7 23 Weekly Restart the Connex printer computer and the server computer Weekly Clean the roller waste collector See Cleaning the Roller Waste Col...

Страница 19: ...he work day or before a big printing job To clean the print heads 1 Prepare isopropanol IPA isopropyl alcohol or ethanol ethyl alcohol disposable cleaning gloves an Objet supplied cleaning cloth or eq...

Страница 20: ...nd forth motion see figure 7 21 Use the mirror to make sure that you have removed all of the residue material Figure 7 21 Cleaning the heads 10 When you have finished cleaning select the confirmation...

Страница 21: ...condition of the nozzles in the print heads Make sure therefore that you perform this test weekly and whenever you suspect a printing problem To perform the pattern test 1 Make sure that the build tra...

Страница 22: ...21 If the results are poor use the following procedure to improve print quality If the results of the last pattern test are poor 1 From the Options menu select Execute Purge Sequence or press F4 2 In...

Страница 23: ...t least once a week If the wiper is damaged or worn replace it To inspect and clean the wiper 1 Prepare isopropanol IPA isopropyl alcohol or ethanol ethyl alcohol disposable cleaning gloves an Objet s...

Страница 24: ...d and the cleaning cloth remove any material remaining on the wiper and the surrounding area 9 Inspect the wiper If the wiper is scratched torn or worn or if you cannot clean it completely replace it...

Страница 25: ...aste collector removes waste material scraped from the roller Suction removes this waste to the printer s waste container This assembly should be cleaned weekly to prevent a blockage in the tubes lead...

Страница 26: ...ock and then pull and lift up the UV lamp 4 Loosen the two screws securing the suction tube on the print block Figure 7 31 Lifting the suction tube 5 Lift the suction tube to secure it in a raised pos...

Страница 27: ...eaning gloves 2 Wet a cloth with isopropanol 3 Use the cloth to wet the bottom of the roller 4 Turn the roller slowly with your hand As the blade scrapes the roller make sure the isopropanol is spread...

Страница 28: ...ng the Roller Scraper Knife You should replace the roller scraper blade after 1 000 hours of printing if it does not effectively keep the roller clean To replace the roller scraper 1 Prepare a new rol...

Страница 29: ...roller scraper assembly Figure 7 37 Removing the roller scraper screws Figure 7 38 Removing the old roller scraper blade 5 Remove the scraper blade and discard it 6 Place the new scraper blade onto t...

Страница 30: ...placing one or more heads if model quality is not acceptable even after cleaning the orifice plate on the bottom of the print block see Cleaning the Print Heads on page 7 19 The head alignment procedu...

Страница 31: ...ing the transparency on the build tray 6 Make sure that the transparency sheet is lying flat and tape it to the tray 7 In the wizard screen select the check box to confirm that the transparency sheet...

Страница 32: ...lines use a magnifying glass or loupe to inspect pairs of consecutive rows printed on the transparency to see where the vertical lines align Figure 7 44 Comparing rows of alignment lines Note It does...

Страница 33: ...umbers the wizard adjusts the head alignment accordingly 12 Click Next to display the next head alignment screen and again select the number representing the most closely aligned vertical lines on the...

Страница 34: ...ion possible You do this by running the Head Optimization wizard During the optimization process 32 samples are printed on the build tray After carefully weighing each of them you enter the weight in...

Страница 35: ...g wizard screen click Next to begin The Wizard Conditions screen appears 4 Read the conditions select I Agree and click Next 5 Close the printer cover and confirm this in the wizard screen 6 In the fo...

Страница 36: ...with a back and forth motion Figure 7 51 Cleaning the print heads Use the mirror to make sure that you have removed all of the residue material 12 When the print heads are clean select the confirmati...

Страница 37: ...of each print head after inspecting each of the printed samples Figure 7 53 Weight Test Data Entry screen a Enter the number of faulty missing nozzles Faulty nozzles are seen in Weight Test samples a...

Страница 38: ...ess Enter The data entry indicator moves to the next position d Repeat these steps for all 32 samples To change an entry click Edit Data enter the correct data and click Save 17 When you have entered...

Страница 39: ...re 7 56 Defective print heads found 18 Choose Replace defective head s if you are prepared to replace the print heads now or Choose Abort wizard if you want to replace the print heads at another time...

Страница 40: ...d consists of the following phases A Identifying the head s needing replacement This is normally done by the Head Optimization wizard Otherwise evidence of physical damage to the head surface or a mal...

Страница 41: ...ion screen 5 Choose Replace faulty heads and click Next Preparing the print block 6 Select the print head s needing replacement and click Next Figure 7 58 Head selection screen The Connex printer heat...

Страница 42: ...afety Figure 7 60 Replace the defective head when this screen appears Removing the Defective Head 9 On the print block release the upper and lower screws that secure the print head in the block If nec...

Страница 43: ...print head driver card out of its socket so that the head is free A and remove it from the bottom of the print block B Figure 7 64 Releasing the print head driver card to remove the head 13 Make sure...

Страница 44: ...of the new print head 14 Inspect the replacement head and make sure that the O ring seals are in place see figure 7 65 15 Gently insert the replacement head into the vacant slot in the print block an...

Страница 45: ...the screws to lock it in place 18 Tighten the upper and lower screws that secure the print head in the print block see figure 7 61 on page 42 Note Hand tighten these screws Do not use a screwdriver 1...

Страница 46: ...hem If there are no installation problems the Head Optimization procedure begins see Calibrating Print Heads on page 7 34 If a vacuum leakage is detected or if there are other problems the wizard aler...

Страница 47: ...creens appear If the printer software does not sense the replaced head the following warning screen appears Figure 7 73 Incorrect installation screen If this happens a Open the print head compartment...

Страница 48: ...page 7 42 b In the wizard screen select the check box to confirm that you have installed another print head and click Next c Contact your authorized Objet Customer Support center about the unformatted...

Страница 49: ...evel is too low to be adjusted the wizard continues to the next phase the final wizard screen indicates that the lamp s radiation for the printing mode is unacceptable To test and calibrate UV lamp ra...

Страница 50: ...esults are displayed This shows the current condition of the lamps after the wizard has calibrated them Figure 7 77 Results and current condition of the UV lamps 3 Cover the UV sensor and confirm this...

Страница 51: ...e the load cells once a month with the Load Cell Calibration wizard To calibrate load cells 1 Start the Load Cell Calibration wizard From the Options menu of the printer interface see figure 7 26 on p...

Страница 52: ...cells are calibrated 6 Click Done in the final wizard screen Figure 7 82 Final wizard screen Replacing the Odor Filter The Connex500 350 printer has an activated carbon filter for removing odors from...

Страница 53: ...switch the printer to offline mode 2 Start the UV Lamp Replacement wizard From the Options menu of the printer interface see figure 7 26 on page 23 select Wizards UV Lamp Replacement 3 Make sure that...

Страница 54: ...mp Figure 7 86 Disconnecting the UV lamp Note Do not disconnect the power connection to the cooling fans 6 Loosen the screw securing the UV lamp cover A and pull the cover up B then out C Figure 7 87...

Страница 55: ...it in the new reflector as long as the black paint has not faded 9 Discard the old reflector and lamp 10 Insert the new UV lamp reflector unit into the housing next to the print block Figure 7 89 Prin...

Страница 56: ...confirm that you have replaced the lamp s and that the black strip is attached then click Next Figure 7 92 UV installation confirmation screen The wizard operates the lamps and checks if their power i...

Страница 57: ...e running the tests effects the operation of the printer you can only open the Built in Tests interface when the Connex system is not printing The test suite features The organization of printing rela...

Страница 58: ...een you select and run tests and the results are displayed Figure 7 96 Built In Tests screen Test List Test Name This column lists all of the tests together with selection check boxes Click the check...

Страница 59: ...uccessfully completed Test failed Unknown results The test has not been run yet All Click to select all of the tests in the list None Click to de select all of the tests in the list Unknown Click to s...

Страница 60: ...ML file You can save any number of reports for the tests you run the name of the file saved is BITReport date time htm By default these files are saved in the Connex installation folder but you can sa...

Страница 61: ...ace on disk Monitor resolution Failure of RAM memory allocation in the Eden computer Block Filling Analyzes the thermistor readings when the block is full and when it is empty Faulty thermistor Interl...

Страница 62: ...replace the waste container You can monitor the weight of the waste container in the Maintenance screen of the printer interface You can also visually inspect the level of waste in the container To ac...

Страница 63: ...o remove it from the printer 3 Place the new waste container next to the full container 4 Unscrew the cap securing the waste drain tube and connect it to the new container 5 Close the full container w...

Страница 64: ...of the printer Acceptable Cleaning Agents mild soap solution common household cleaners and window cleaners common commercial and industrial detergents 5 solution in water alcohol ethanol isopropanol...

Страница 65: ...DOC 13000 Rev E 8 1 Handling Printed Models Removing Models After Printing 2 Removing the Support Material 2 Storing Models 3...

Страница 66: ...dels cool for several hours Removing the Support Material After printed models have cooled the support material must be removed This can be done by different methods depending on the size of the model...

Страница 67: ...removed but it is typically between half an hour and several hours In any case you should remove as much support material as possible before the caustic soda treatment and rinse the model thoroughly w...

Страница 68: ...Handling Printed Models 8 4 DOC 13000 Rev E...

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