The Stratasys Balco WaterJet Cleaning System is designed for the easy and fast removal of support material from models produced on Stratasys 3D printing systems. This system is equipped with two types of nozzles, allowing users to select the appropriate flow rate and pressure for cleaning both delicate and robust models.
Function Description:
The Balco WaterJet operates by using pressurized water to remove support material from 3D printed models. The cleaning process involves placing a model inside the WaterJet cabinet, selecting the appropriate nozzle (jet or spray), and activating the water flow via a foot pedal. The system is designed to collect waste water and removed support material in a dedicated waste collector located underneath the cabinet. The cleaning process can be tailored based on the model's size, delicacy, and the amount and location of support material. For models with hard-to-reach areas or requiring a smoother finish, a post-cleaning soak in a caustic soda solution is recommended, followed by a thorough rinse with the WaterJet.
Important Technical Specifications:
The Balco WaterJet system consists of a cabinet and a stand.
- WaterJet Cabinet Dimensions: 72 cm (W) × 86 cm (H) × 85 cm (D) or 28.5" (W) × 33.9" (H) × 33.5" (D).
- WaterJet Cabinet Weight: 85 kg (187.5 lb).
- WaterJet with Stand Dimensions: 72 cm (W) × 192 cm (H) × 85 cm (D) or 27.5" (W) × 75.5" (H) × 32.8" (D).
- WaterJet with Stand Weight: 95 kg (209 lb).
- Power Requirements:
- 18 A for 110-120 V system (for running load).
- 15 A for 220-240 V system (for running load).
- Water Pressure Pump: Requires a water supply pressure of at least 2 bars, delivering 12 liters of water per minute. Insufficient water pressure can cause the pump to operate improperly, overheat, or fail.
- Cabinet Types: Available in "Standard" and "Large" sizes, differing in door opening dimensions to accommodate models from various Stratasys printers (e.g., Objet260, Objet350, Eden260V, Connex260 for Standard; Objet500, Eden500V Connex500, Stratasys J750 for Large).
Usage Features:
- Nozzle Selection: The system offers two types of nozzles:
- Jet Nozzle: A high-pressure nozzle suitable for removing large support-structure areas, clearing material from cavities, pipes, tubes, and cylinders. It is recommended for large models without thin walls or fragile sections. Note: Not suitable for flexible materials like Tango™ and Agilus30™ as it may leave noticeable marks.
- Spray Nozzle: A medium-pressure nozzle ideal for cleaning delicate parts, parts with thin walls or fragile areas, and models made from TangoPlus, TangoBlack, and TangoGray materials. Examples include jewelry and dental appliances.
- Side Door Access: Models are placed into the cabinet via a side door, which can be raised, lowered, and secured with a locking screw.
- Foot Pedal Activation: The WaterJet pump is activated by pressing a foot pedal. For optimal results, the pedal should be pressed down completely and continuously.
- Built-in Gloves: Users operate the nozzles by inserting their hands into built-in gloves on the front of the cabinet, ensuring protection from the water jet.
- Waste Management: A waste filter is placed over the water outlet inside the cabinet to collect removed support material. A two-bucket waste collector (round inside square) underneath the cabinet gathers waste water and material, with overflow directed to the building's drainage system.
Maintenance Features:
- Fuse Replacement: The system includes a 5A fuse. Before replacement, the WaterJet must be switched off, and the power plug disconnected from the wall socket to prevent electrical hazards.
- Water Pressure Pump Maintenance:
- Water Leaks: Regular checks of water pressure pump, hoses, and connections are necessary. Leaking hose connections may require O-ring replacement, while leaking connectors may need new thread-seal tape (PTFE or Teflon® tape).
- Oil Level: The oil level in the water pressure pump should be checked every six months and maintained at no lower than the middle of the sight glass. If the oil appears grayish due to condensation, it must be changed. The pump requires 0.25 liters of motor oil W 15/40.
- Waste Collector Emptying: The waste collector should be emptied weekly to prevent waste build-up.
- Troubleshooting:
- Pump turns off every 10-15 seconds: This often indicates air or dirt trapped in the pump or supply hose. Detaching the spray nozzle tip and letting water run for five minutes can resolve this. A clogged or damaged nozzle tip should also be checked.
- Pump stops working: Check the water pressure supplied to the pump (minimum 2 bars). Low pressure can cause overheating. Also, check and reset the motor safety overload switch on the water pressure-pump motor, and inspect the main fuse.
- Water Supply Management: Always turn off the water supply to the WaterJet when not in use, especially for extended periods, to prevent leaks and damage to the water hose and connections. Ensure the water supply is open before activating the WaterJet.
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