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Line 115: − + − |+ − + − # '''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 the gunk.+ − #**Be sure to also clean the basket thoroughly.+ − #**Replace the basket.+ − #*Fill the bath up with water (use the clear bucket under the sink, fill this with water from the sink, pour the water into the bath) until the water level reaches 1.5 horizontal basket holes from the top.+ − #*Turn the bath on and have it heat up to 70 degrees Celsius.+ − #*Take a pre-filled bottle of Sodium Hydroxide (located in the thin cabinet underneath the counter the bath sits on) and sprinkle some into the heated water.+ − #*Allow the sprinkled amount to dissolve and repeat until all of the Sodium Hydroxide in the bottle has been dissolved in the bath.+ − #*Refill the Sodium Hydroxide bottle if there is only one filled bottle left.+ − # '''How to fill new Sodium Hydroxide bottles:''' − #* Wear a lab coat, nitrile gloves, and safety goggles. This is very important. The granule Sodium Hydroxide (undiluted--undissolved) is much more dangerous. − #*There should be a mini funnel in the lab somewhere (it tends to move around some). Use the large Sodium Hydroxide bottle and mini funnel to refill the small bottles up to where the level in the last remaining bottle is. Always leave one bottle filled as a gauge for where to refill to. If a bottle has not been left filled, then fill the small bottle to about 1.5 inches below where the narrowing of the bottle begins.
no edit summary
====Terminology====
====Terminology====
* Look up support info
* There is no unique terminology associated with this machine.
==== User Manual ====
==== User Manual ====
==Training==
==Training==
====Overview====
====Overview====
====Demonstration====
====Demonstration====
====General maintenance====
====General maintenance====
Like many machines in the Maker Hub, the bath must be periodically wiped down to keep it clean and working properly. This also removes spots created by the hydrogen peroxide. Also, there is a limit to how much support material can be dissolved and once it has been reached the tank must be emptied and refilled with new hydrogen peroxide solution.
====Specific Maintenance Tasks====
====Specific Maintenance Tasks====
|-
|-
|1
|1
|Wipe down the machine
|As neeeded
|Lab Volunteer
|N/A
|-
|2
|Change the Bath Solution
|Change the Bath Solution
|When the bath starts taking a very long time to dissolve support material
|When the bath starts taking a very long time to dissolve support material
|
|
|-
|-
|2
|3
|Refill Sodium Hydroxide Bottles
|Refill Sodium Hydroxide Bottles
|If there is only one full bottle remaining
|If there is only one full bottle remaining
|Lab Volunteer
|Lab Volunteer
|}2. '''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 the gunk.
**Be sure to also clean the basket thoroughly.
**Replace the basket.
*Fill the bath up with water (use the clear bucket under the sink, fill this with water from the sink, pour the water into the bath) until the water level reaches 1.5 horizontal basket holes from the top.
*Turn the bath on and have it heat up to 70 degrees Celsius.
*Take a pre-filled bottle of Sodium Hydroxide (located in the thin cabinet underneath the counter the bath sits on) and sprinkle some into the heated water.
*Allow the sprinkled amount to dissolve and repeat until all of the Sodium Hydroxide in the bottle has been dissolved in the bath.
*Refill the Sodium Hydroxide bottle if there is only one filled bottle left.3. '''How to fill new Sodium Hydroxide bottles:'''
* Wear a lab coat, nitrile gloves, and safety goggles. This is very important. The granule Sodium Hydroxide (undiluted--undissolved) is much more dangerous.
*There should be a mini funnel in the lab somewhere (it tends to move around some). Use the large Sodium Hydroxide bottle and mini funnel to refill the small bottles up to where the level in the last remaining bottle is. Always leave one bottle filled as a gauge for where to refill to. If a bottle has not been left filled, then fill the small bottle to about 1.5 inches below where the narrowing of the bottle begins.