Dissolvable Support Bath

This is a Dissolving Support Bath.

The Dissolvable Support Bath is used in conjunction with both Stratasys 3D printers, the Dimension and the F370. Since these printers use QRS support material, the support can be dissolved in a heated, agitated, diluted solution of Sodium Hydroxide.

Sodium Hydroxide can be dangerous when handled incorrectly, therefore there are various safety procedures associated with the use of the Dissolvable Support Bath.

The Dissolvable Support Bath Ace is Gabi Lorenzo.

Safety Procedures

• Only Prototype Lab Mentors are allowed to use the Bath for safety concerns
• Required safety attire is a lab coat, safety goggles, and heat/chemical protecting gloves
• Only the Ace of the Bath and the Aces of the Prototype Lab are allowed to drain the tank and replenish it with a new solution of diluted Sodium Hydroxide
• Wash your hands after using the bath and after touching parts that have been removed from the bath within the past 24 hours
• All parts that come out of the bath should be washed and left to dry/drain excess fluid for at least an hour
• All spills should be immediately reported to Justin and the Aces of the Prototype Lab
• Follow the MSDS procedure in the event of getting Sodium Hydroxide on your skin, in your eyes, or if you ingest it

MSDS Knowledge (soon to be switched to SDS)

• The MSDS is located next to the sink in a bright yellow binder hanging on the wall
• It includes the fluids the Prototype Lab uses that could be dangerous when humans are exposed to it, and it details what to do if the fluid is ingested, gets in your eyes or on your skin, and other pertinent information.

Mentors Only

• • How to use bath:
    • ALWAYS USE SAFETY ATTIRE.
      

      Bath Controls Panel.
      • Flip the black switch (inside the yellow rectangle) to turn the bath on
      • Then press the button circled in red to start the heating process
      • The red knob (circled in cyan) should always be set to 70 degrees Celsius
      • Keep the lid shut as often as possible
      • Place the part inside of a mesh bag, tie the strings of the mesh bag to the side handles, allow the part to soak in the bath for several hours
        • Mesh bags are located in the small drawer next to the sink
      • When removing parts:
        • If needed, the basket can be lifted out and removed so that parts can be sifted through in the air instead of the solution. If you do remove basket, removed the lid first and place it in the sink. Next, lift the basket, let it drain above the bath so that it drips into the bath, then once it is barley dripping, the basket can be transferred to the sink.
        • Wash the mesh bag and part thoroughly. Use paper towels to dry the part and let the part sit on paper towels and drain for a couple hours. Always inform the part's creator to wash their hands after handling the part and before eating or touching their eyes/face.
        • Replace the basket and lid.
  • What to do if the bath is beeping:
    • This means the bath is low on water (below 1.5 horizontal holes of the basket inside)
    • Take the clear bucket under the sink and use it to fill the bath until the fluid level inside is only 1.5 horizontal basket holes from the top
  • Tell Ben, Gabi, or Justin if you think the solution should be switched, do not do it yourself
  • What to do if the bath appears to be leaking:
    • Immediately inform the Aces of the Lab and/or Justin
    • This would mean there is a collection of water inside of the grey catch tray underneath the bath.
  • What to do in the event of a spill:
    • Evacuate the lab and shut it down until the spill has been properly cleaned
    • Immediately inform the Aces of the Lab and/or Justin; if unavailable and the spill is large then contact Security
    • Use the spill kit
      • There should be instructions inside
      • Make sure you are wearing safety attire

For Prototype Lab Aces and Bath Ace Only

• How to change the solution in the bath:
  • Wear safety attire during the entire process
  • Retrieve a barrel to drain the fluid into
  • Unscrew the top of drain spout (make sure the drain spout is completely pushed in before unscrewing)
  • Swivel the drain spout to face down
  • Align the barrel opening to be underneath the drain spout
  • Pull the drain spout out so that the fluid begins to drain
  • Completely drain all of the fluid
  • Clean the inside of the tank
    • Use water to rinse out the inside of the tank then use paper towels to wipe out and gunk
    • Be sure to also clean the basket thoroughly
    • Replace the basket
• How to fill new Sodium Hydroxide bottles: