2012年7月23日

ProJet 1000/1500 POST PROCESSING

Application Summary

• The ProJet 1000/1500 produced durable parts with:

– Excellent surface resolution

– Excellent feature details.

• Overall part quality is determined by proper build setup and part orientation as well as good post processing

techniques.

How the ProJet 1000/1500 Works

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SHUTTLE PLATE

UV IMAGER

MATERIAL TRAY

LIQUID RESIN

MIRROR

BUILD PAD

COATER BAR

SHUTTLE PLATE

TRANSPARENT FILM

COATER BAR

ProJet 1000/1500 Support Generation

Build Pad

Lattice Supports

Material Tray

Liquid Resin Layer

Part

Post Processing Summary

• Remove excess

resin from part

surface

• Manually remove

supports and

smooth down

support nubs

Equipment for Post Processing

• ProJet 1000/1500 Finisher

– Two Tank System –

• 1st Tank holds 8-10 gals

of Clean-A-Part solution.

Wash excess resin

• 2nd Tank holds 8-10 gals

Water. Rinse

– Magnetic Motor with stir

bar to agitate liquid

– Timer

– Quick Connect Hoses for

filling and draining

Equipment for Post Processing

• ProJet 1000/1500 Curing

System

– Small UV oven that post

cures parts

– Timer and automatic

shutoff

– UV protective window with

safety interlock

Supplies and Hand Tools for Post Processing

Angled Snips (included with Finisher

System) Sandpaper, Files,

Sanding Blocks, etc.

Exacto Knife

Soft Bristle Toothbrush Small bin of water or

isopropyl alcohol for

wet sanding

Gloves if handling uncured

resin

Power Tools for Post Processing

• Dremel MultiMax

– Uses oscillation instead of rotation

– Rotary Tools can be too aggressive and remove too much material during sanding

– Recommended MultiMax Attachments:

• Sanding Block and pads for sanding

• Cutting Tool for removing supports

Cleaning Parts with the ProJet Finisher System

Figure 1: Load Print Pad onto holder

• Load Print Pad

• Slide the print platform into

the clips on finisher's on

each side of print pad

holder. Ensure that print pad

is fully seated in holder

(Figure 1).

• Wash Cycle

• Place the holder in the

solvent tank filled with 8-10

gal. (30L) of Clean-A-Part

solution. Press the timer to

start the 5 minute cycle

(Figure 2).

Figure 2: Wash Cycle

Cleaning Parts with the ProJet Finisher System

• Unload Wash

• Once cycle is completed, lift the print pad holder out and set it on the print pad clip to allow most of the solvent to drip off the part. Note: Allow the solvent to drip off the part completely before proceeding to the next step

• (Figure 3).

• Rinse Cycle

• Place the print pad holder into the water rinse tank and press the timer for the 5 minute cycle

• (Figure 4).

Figure 3: Unload Wash

Figure 3: Mineral Spirits will dissolve the

part material so rinse no longer than a few

seconds.

Figure 4: Rinse Cycle

Cleaning Parts with the ProJet Finisher System

• TIPS AND BEST PRACTICES

– Use both platform

holders as covers when

finisher not in use

– Take one out and set

aside and only use one

holder while cleaning

Cleaning Parts with the ProJet Finisher

• Unload Rinse

– Once cycle is completed,

lift the holder and set it

on the print pad clip to

allow most of the water

to drip off the part. Note:

for best quality, blot

excess water with a

paper towel, or use air to

remove water from the

part before curing

(Figure 5).Figure 5: Unload Rinse

Sanding and Finishing Parts

• Remove supports

– Use the snips that were

supplied with the

ProJet™ Finisher to snip

the supports connecting

the part and the build

foundation.

– Using Dremel MultiMax

and straight cutter or

yolk cutter, gently move

tool through supports at

lowest level

Sanding and Finishing Parts

• TIPS AND BEST PRACTICES

– Take care not to snip too

close to the part surface to

prevent a pit into the part.

Leave a small amount of

support on the part that

can be sanded down

– Support columns can fly

when snipped. Cover the

part with one hand while

snipping with another to

catch the flying support

Sanding and Finishing Parts

• Sand Parts to desired finish

– Sand excess support nubs

off part and finish to

desired smoothness.

– Wet sand with water or

isopropyl alcohol in a small

bin rinsing part

periodically to reduce

sanding dust and remove

debris from part.

Sanding and Finishing Parts

• TIPS AND BEST PRACTICES

– Excess resin can still remain

on part in crevices and along

edges. LOOK FOR SHINY

AREAS.

– Remove excess resin using a

soft bristle toothbrush

dipped in isopropyl alcohol

Sanding and Finishing Parts

• TIPS AND BEST PRACTICES

– Check holes and other crevices for excess resin

that may be trapped.

– Remove using pointed object (i.e. dental picks,

wooden sticks, paper clips, etc.)

Post Cure Parts

• Make sure parts are

completely dry and free of

sanding dust.

• Place uncured parts in the

ProJet Curing Oven for a 40

minute cycle. Parts will post

cure to a dry, hard finish. If

parts were post cured before

finishing, another curing

cycle is not required

Post Cure Parts

• TIPS AND BEST PRACTICES

– The Ivory material may

turn brown if post

cured for too long

– Reduce curing time to

25 minutes and check

to see if parts are hard

and dry to the touch

Refresh and Condition Parts

• Sanding colored parts can cause scratches

• Scratches can be masked to give part clean finish by wiping or dipping in oil

• Mineral oil, canola oil, vegetable oil and other similar oils

• Dip in a shallow bin, lightly spray on or wipe on oil

• Remove excess oil by wiping with towel or washing with soapy water

Parts and Supplies List

• ProJet 1500 Finisher

– Washing Unit – Part Number: 273267-00

– Curing Unit – Part Number: 273108-00

• Dremel MultiMax Power Tool

– Source: Amazon.com (Factory Reconditioned and reduced

price: $47.99)

– Attachments:

• Wood Flush Cut Tool

• Hook and Loop Sanding Pad and Sandpaper inserts

• Yolk Cutting Tool