Z Corporation 406 User Manual

Also see for Z 406: User manual

Contents

Z Corporation 406 User Manual Manual pdf 16 page image

Z Corporation Z406 System User Manual16 Z Corporation Service (781)852-5050/(877)88-ZCORPmm). This increases the binder to powder ratio and wets more of the resins in the powdersystem. As you increase the strength of the part in this manner you are also inceasing theamount of time to dry the part. Use of the removable build plate and oven drying the part arerecommended.1.6.1.2 Gross and Fine Depowdering• Become familiar with where the parts are placed and how they are oriented in the build boxso you do not accidentally bump or brush against a fragile part during the depowderingprocess.• When performing the gross depowdering (removal of excess powder in the build box) do notplunge the vacuum nozzle into the powder bed. Begin at the outer perimeter of the build box,slowly work your way into the build. Hold the tip of vacuum nozzle approximately 0.25” (6.4mm) to .375” (9.5 mm) away from the powder and allow the vacuum to pull the powder up.Slanting the vacuum nozzle will enable you to control the suction. This will decrease thechance of breaking a part that is hidden beneath the surface of the powder.• While fine depowdering in the depowderer, always start with a low air pressure and graduallyincrease the pressure as the fine details and features of the part become visible. When thetop and sides of the part are completely depowdered tilt the part onto one of its sides.Handle the part carefully. The part may be fragile and brittle before infiltration. If none of thesides of the part will be able to support the weight of the part you can apply a small amount ofresin or epoxy to strengthen it. You want to be careful not to let any of the infiltrant come intocontact with any unprinted powder that may still be on the part. Let the infiltrant dry beforecontinuing to depowder.1.6.1.3 Use of the Removable Build Plate• The removable build plate is an excellent tool for the new user. It allows you to quicklyremove the part from the build bed and begin printing again. The build plate also allows theuser to easily transport the part to the oven (at temperatures below 150 oF or 66 oC) or thedepowdering station without ever having to handle the part.• If you choose to use the removable build plate keep in mind that you want to orient the partsso that the part does not collapse when powder flows out from the sides of the part after theremovable build plate is lifted from the build bed.1.6.1.4 Oven Dry the Part• Although the part can be handled when it is not completely dried, the part reaches fullstrength when dried. Placing the part in an oven at temperatures less than 200°F (93 oC) for2-4 hours will dramatically increase the strength of the part. This is only recommended forplaster-based powders. If using the removable build plate, remove the part from theremovable build plate before placing in the oven.1.6.2 PART INFILTRATION1.6.2.1 When Using Z-Bond TM Resin• Always infiltrate the most delicate features of the part first. Z-Bond resin gives almostimmediate strength to the area of the part that has been infiltrated. As you handle the areasof the part that have been infiltrated it will be less likely to break it.• Try to avoid infiltrating the part by applying Z-Bond resin from spot to spot. Pick a goodstarting place hold that area upward relative to the rest of the part. With your free hand,place the tip of the Z-Bond bottle against the part and allow the cyanoacrylate (CA) to flowfrom the bottle. It is important that the CA flows at a uniform rate making it easier for you thejudge how quickly it will flow from the tip of the bottle before it wicks into the part. By seeinghow quickly it wicks into the part you will be able to judge where and how quickly to move the