Frequently Asked Questions

Look here first for an answer to your SCA problem. If you cannot find what you need here, do not hesitate to contact Technical Support for further assistance.

  • Which types of Stratasys 3D printers does the SCA work with?

    Any of the Stratasys printers that use the Soluble Support Technology (SST) material for part supports. There are soluble support materials compatible with ABS,  ASA, PC, and nylon part materials. Visit the Stratasys website to learn more.

  • How does the SCA clean support material off of 3D printed parts?

    To clean your 3D printed parts the SCA circulates them in heated water containing a small amount of cleaning solution. The solution dissolves the soluble support material off of the parts. The SCA has been optimized to minimize the time needed to remove support material from 3D printed parts.

  • What cleaning solutions are used in the SCA?

    The SCA tank is filled with water and a small amount of either a sodium hydroxide-based cleaning solution (WaterWorks) or an eco-friendly cleaning solution (EcoWorks). You can use tap water to fill the SCA tank, there is no reason to use distilled or filtered water. For fastest soluble support removal use WaterWorks Soluble Concentrate P400SC; for gentler cleaning, use the EcoWorks cleaning solution. Both cleaning solutions are provided by Stratasys through their reseller network. For the cleaning solution, you must use product provided by Stratasys.

  • How much of the cleaning solution do I need to use?

    Use one bottle of WaterWorks or 6 packages of EcoWorks for an SCA-1200HT.  For the SCA 3600, 2 bottles of WaterWorks  or 13 packages of EcoWorks are recommended.

  • Is there a way to tell if the cleaning solution needs to be changed?

    Typically an SCA-1200HT can process 2.4 lb. of support material and the SCA 3600 5 lb. of support material before the solution needs to changed.

     

    Any of the following may indicate it is time to change the cleaning solution in the SCA.

    • The tank begins to cloud or exhibit low clarity. Some white parts (ABS) may turn brown or yellow.

    • Parts have a sticky residue and/or stick together in the tank due to excess dissolved solids in the tank.

    • Functional parts with moving features are not functioning properly.

    • Support material is not fully removed after a long cleaning cycle.

    • The tank’s solution exhibits a low pH

     

  • What temperature setting is best for dissolving soluble support from my ABS parts? ASA parts? PC parts? Nylon parts?

    Recommended temperatures for most efficient cleaning:

    ABS

    ASA

    PC

    Nylon

    70C

    70C

    85C

    50, 60 or 70C**

    WaterWorks or EcoWorks

    WaterWorks only

    WaterWorks only

    WaterWorks or EcoWorks

    **depending on part wall thickness and desired dimensional accuracy

    Download PADT's  Best Practices Guide for more information on post-processing these materials.

  • How long will it take to remove the support material from my 3D printed parts?

    Removal time is highly variable and depends on part geometry, part size, cleaning solution used, pH of cleaning solution, and material type. Until some experience is gained, estimate four to five hours. Parts can be checked during the cleaning cycle and removed from the SCA if support is dissolved before the end of the set time.

  • I have an older cleaning system. Do I need an SCA?

    If you have an existing support removal tank and it is working reliably and quickly enough for your needs, then you probably don’t need an SCA. If you need a cleaning tank with more reliability and efficiency, contact your Stratasys distributor to find out more about the benefits of using the SCA.

    The SCA-1200HT offers versatility in designing your own cleaning cycle. The user controls the time and temperature, and can check on the status of the parts at any time during the cleaning cycle. Either of the Stratasys cleaning solutions may be used in the SCA, WaterWorks or EcoWorks.

  • Can I run the SCA overnight or continuously without any safety issues?

    Yes. All SCA systems have been tested for continuous use at temperature and have been designed to include safety features that allow unattended operation.

  • How do I dispose of used cleaning  solution?

    Every location is different. Consult the Material Safety Sheet that came with the concentrate used in the solution or the local authorities to determine the best method.

  • Who is PADT and what is their relationship to Stratasys?

    PADT is an engineering services company located in the Phoenix, Arizona area. The company has been a user of Stratasys technology and a distributor of Stratasys 3D printers in Arizona for many years. The development of the SCA allowed PADT to combine their experience using Stratasys 3D printers with their extensive product development skills to create an optimized solution for the user community. Learn more about PADT at www.padtinc.com.

Troubleshooting Guide

Look here first for an answer to your SCA problem. If you cannot find what you need here, do not hesitate to contact Technical Support for further assistance.

Problem Probable Causes What to Do

Power Indicator is not Lit after pressing the button

Power switch is not “On”

Press rocker switch on the right-hand side of the unit to the “On” position.

Power cord is not connected to unit or wall

Check the power cord and make sure it is pushed all the way in to the receptacle on the system and is securely connected to a grounded wall socket.

Fuse is blown

Contact technical support.

Power circuit has tripped

Check your building circuit breakers, and any power strips that the unit is plugged into for a tripped circuit breaker or blown fuse. Reset or replace the breaker or fuse as required. 

Power indicator has failed

If the time and temperature displays are lit, and the rocker switch on the side of the unit is ON, the power indicator has probably failed.  Contact technical support.

Pump and heater will not start

Power is not on

Check the power indicatorpower indicatoron the front control panel.  If it is off press the power indicatorbutton. If still unlit, then proceed to the “Power Indicator is not Lit” Problem.

Timer has not been set and started

The system will only run when the timer is counting down. Check the timer display on the control panel.

  • If it is not counting down, press the power indicator button.
  • If the time being displayed is 00:00, then add time and start the system as described in the “Operating your SCA” portion of this manual.

Liquid level is too high or too low

Check the indicator lights on the right side of the display control panel.  If either level indicator is on, add or remove water from the tank until the indicator turns off.
ALWAYS WEAR PROTECTIVE GLOVES AND EYEWEAR WHEN ADDING OR REMOVING LIQUID FROM THE TANK.

Liquid temperature is too high

Check the indicator lights on the right side of the display control panel.  If the Alert light is on, open the lid and lift the part basket from the tank.
ALWAYS WEAR PROTECTIVE GLOVES AND EYEWEAR WHEN MANIPULATING THE PART BASKET.
NEVER PLACE YOUR FACE NEAR THE TANK WHEN REMOVING THE LID, VAPORS FROM THE CLEANING SOLUTION MAY CAUSE EYE AND RESPIRATORY IRRITATION.
Let the liquid cool and try starting the cycle again. 
If it overheats a second time, contact technical support.

Over-temperature sensor has tripped

A resettable over temperature sensor located on the back wall of the tank turns off the unit if the temperature of the bath exceeds 95ºC.  For instructions on resetting this sensor, contact technical support.

Pump or Heater have failed

Contact technical support.

Buzzer is going off

Liquid level is too high or too low

Check the indicator lights on the right side of the control panel.  If either level indicator is on, add or remove water from the tank until the indicators go off.
ALWAYS WEAR PROTECTIVE GLOVES AND EYEWEAR WHEN ADDING OR REMOVING LIQUID FROM THE TANK.

Liquid temperature is too high

Error Code:
EO = over temperature

Check the indicator lights on the right side of the control panel.  If the Alert Indicator light is on remove the lid and lift the part basket from the tank.
ALWAYS WEAR PROTECTIVE GLOVES AND EYEWEAR WHEN MANIPULATING THE PART BASKET.
NEVER PLACE YOUR FACE NEAR THE TANK WHEN REMOVING THE LID, VAPORS FROM THE CLEANING SOLUTION MAY CAUSE EYE AND RESPIRATORY IRRITATION.
Let the liquid cool and try starting the cycle again. 
If it overheats a second time, contact technical support.

Sensor failure, power supply failure, or pump failure.

Error Codes:
EP = pump motor current fault
EH = heater current fault
ES = Vcc out of range, power supply error
EO = over temperature
r1 = temperature sensor failure
r2 = High level sensor failure
r3 = Low level sensor failure

If the Alert Indicator light is also illuminated this is indicative of one of several types of failures.

Contact technical support.

Basket is raised or lowered too quickly

If the basket is lowered into or raised out of the cleaning solution too quickly, the solution does not fill or empty out fast enough to maintain even water level throughout the tank. This causes a temporary high or low water level condition. The alarm will silence once the water level reaches acceptable limits but the unit will not operate again until thepower indicatorbutton is pushed.

Flow in tank appears less than normal

Nozzle is clogged

Remove the nozzle and clean with water.  If necessary, clean holes in nozzle with wire brush or small pin.  Verify that all nozzle holes are clear before replacing.
ALWAYS WEAR PROTECTIVE GLOVES AND EYEWEAR WHEN WORKING INSIDE THE TANK OR HANDLING COMPONENTS THAT ARE COVERED IN CLEANING SOLUTION.

Pump intake screen is clogged

Drain the tank as instructed in the section "Maintaining your SCA". Clean the intake screen with a toothbrush until debris is removed from the holes.

ALWAYS WEAR PROTECTIVE GLOVES AND EYEWEAR WHEN WORKING INSIDE THE TANK OR HANDLING COMPONENTS THAT ARE COVERED IN CLEANING SOLUTION.

Flow from nozzle is not uniform

Nozzle is clogged

Remove the nozzle and clean with water.  If necessary, clean holes in nozzle with wire brush or small pin.  Verify that all nozzle holes are clear before replacing.
ALWAYS WEAR PROTECTIVE GLOVES AND EYEWEAR WHEN WORKING INSIDE THE TANK OR HANDLING COMPONENTS THAT ARE COVERED IN CLEANING SOLUTION.

White deposits noticeable on dark-colored parts

The white-colored support material may have saturated the cleaning solution.

Drain the tank and add fresh water and cleaning solution as described in the “Operating your SCA” portion of this manual. Re-clean the parts using the fresh cleaning solution.

The cleaning solution has a strong odor

The cleaning solution is likely saturated with support material.

Drain the tank and add fresh water and cleaning solution as described in the “Operating your SCA” portion of this manual.

After several hours parts don’t appear to be much cleaner

The cleaning solution is likely saturated with support material.

Drain the tank and add fresh water and cleaning solution as described in the “Operating your SCA” portion of this manual.

Type of cleaning agent.

If using EcoWorks, try switching to WaterWorks. Both are sold by Stratasys resellers. WaterWorks is a more efficient cleaning concentrate.

Liquid Level indicators did not turn off when liquid was added/removed from the tank

Sensors or Indicators have failed

Contact technical support

System is draining slowly

Drain strainer is clogged

While wearing gloves, reach into the water and remove any large pieces of debris from the drain strainer. If necessary, clean the drain strainer with a toothbrush without removing the strainer.
ALWAYS WEAR PROTECTIVE GLOVES AND EYEWEAR WHEN WORKING INSIDE THE TANK.
Resume draining. 
Do not drain without the strainer.

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