Large or Bulky Parts

 The below procedure is a general guideline to help the customer process their printed VisJet® M3 Cast part in a large ultrasonic cleaner. Your results may vary slightly from the below procedure. Before proceeding with the procedure, confirm you have the following items in place. Also, make sure to perform this procedure in a well ventilated room or under a ventilation hood. 

 

Items Needed:

  • Hotplate 
  • (1) Large ultrasonic cleaner
  • 99%> Isopropryl Alcohol (IPA)
  • Safety goggles
  • Respirator mask
  • Nitrile gloves
  • Heat resistant gloves

 

  1. Put on safety goggles, an air respirator mask and a pair of Nitrile gloves while operating the Ultrasonic cleaner.
  2. Fill the ultrasonic cleaner with 99%> Isopropyl Alcohol(IPA) to the maximum fill limit for your cleaner. 
  3. Cover with lid and set temperature to 30° Celsius.

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  1. For large bulky parts, it is recommended to use the hot plate method to remove build parts off the build plate.
  2. Place build plate with build part onto hotplate pad.
  3. Turn on the hotplate between 200° to 275° Celsius.
Heat.png Caution: Hot plate is extremely hot and will cause build plate to become to hot to handle with Nitrile gloves. Use protective heat-resistant gloves when performing this step.

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  1. Within a few moments the support wax will begin to melt. Carefully touch each part(s) to see if it starts to slide across the build plate. Larger pieces will take a bit longer than smaller ones.  Once all the part(s) have released, turn off the hotplate and remove each part(s) off the build plate and place on a wax paper. 

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  1. Before lowering the part into the ultrasonic cleaner, confirm the IPA is at the recommended 30° Celsius temperature using a thermometer. The ultrasonic cleaner will slightly rise in temperature during the cleaning process so monitoring the temperature throughout the cleaning process is highly recommended for optimal part processing.
  2. Remove cover and place part(s) in Ultrasonic Cleaner. 
  3. Replace cover and turn on ultrasonic agitator.
  4. Observe your part every minute (+/-) to see the progress of the support material dissolving. 
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NOTE: As soon as the first part touches the IPA, you will start to create an IPA and Wax mixture. At some point this will become saturated depending on how many parts and how much support is on them. When it seems like the parts are taking too long to process, replenish the vat with fresh IPA.

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  1. The below part was removed from the Ultrasonic cleaner after 3 minutes. You can clearly see the support material dissolving away from the build material (M3 Cast). 
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Note: Depending on geometry of part(s), saturation of wax in alcohol (cloudy appearance) and agitation, results will vary moderately on the amount of time the support wax is removed from the build part.

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  1. Once the part(s) look free of support material, turn off agitator and remove part from Cleaner and place on dry paper towels.
  2. Place part(s) into a 2nd IPA bath (room temperature) to remove any residual support material off part. Swirl part around manually for no more than 10 seconds.
  3. Remove part(s) from 2nd IPA bath and place on dry paper towels.
  4. Finished processed parts below. As you can see there is white-ish residue left on the parts. This is evaporated IPA. This will have NO affect on casting.

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