WAZER PRO¶

Machine Orientation: WAZER Pro (High-Pressure Desktop Abrasive Waterjet System)¶

This orientation module introduces the WAZER Pro high-pressure abrasive waterjet platform featuring a 12” \times 18” \ (305 \times 460\text{ mm}) cutting area, 4,500\text{ PSI} - 10,000\text{ PSI} ultra-high pressure hydraulic pumping engine, fine garnet abrasive metering, and cold-cutting mechanical erosion used for precision metal brackets, glass diffusers, carbon fiber plates, and heat-sensitive smart light enclosure chassis.

View 1: Kinetic Micro-Erosion & High-Pressure Hydraulic Flow¶

Conceive¶

The WAZER Pro changes the physical state of solid sheet stock (metals, glass, composites, ceramics) from intact raw plate to precision erosion-cut structural profiles, intricate internal cutouts, and stress-free mechanical parts.

Actors: Student operator, WAM slicing software, high-pressure hydraulic pump module, 80\text{ mesh} garnet abrasive hopper, tungsten carbide mixing nozzle, high-pressure orifice (0.015”), dual-stage water filtration assembly, and corrugated polypropylene bed.

Actions: High-pressure water acceleration, kinetic abrasive mixing, mechanical micro-erosion material removal, spent slurry separation, and automated nozzle offset tracking.

Context¶

Abrasive waterjet machining introduces cold subtractive cutting into Unit 1 of the course, providing sub-millimeter precision across materials that cannot be cut with thermal lasers (thick aluminum, stainless steel, glass, carbon fiber) due to heat-affected zones (HAZ) or toxic off-gassing.

Course Documentation Link: [Unit 1: Subtractive Waterjet Machining & Cold Material Cutting](../../unit-1/waterjet-cutting.md)

Course Documentation Link: [Unit 1: Waterjet Safety & Abrasive Handling Policy](../../unit-1/waterjet-safety.md)

Official Manuals: [WAZER Pro Operations & Maintenance Guide](https\://www.wazer.com)

Comprehend¶

The WAZER Pro accelerates incoming tap water through a high-pressure pump system, forcing it through a microscopic sapphire or diamond orifice to create a supersonic water stream. Inside the mixing chamber, this vacuum stream draws in 80\text{ mesh} garnet abrasive particles, focusing them through a tungsten carbide nozzle tube to micro-erode the target substrate.
[ Tap Water Supply & Dual Filtration Stage ]
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[ High-Pressure Hydraulic Pump (4,500 - 10,000 PSI) ]
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▼ [High-Pressure Line]
[ Sapphire Orifice (0.015” Supersonic Stream) ]
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▼ [Vacuum Mixing Chamber] ◄── [ 80 Mesh Garnet Hopper ]
[ Focused Abrasive Mixing Nozzle ]
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[ Kinetic Micro-Erosion Kinetic Jet Stream ]
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[ Substrate Material Vaporization/Erosion ]
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[ Spent Slurry & Used Garnet Collection Tank ]

State Change Mechanics:

Supersonic Acceleration: Water forced through the micro-orifice reaches speeds up to Mach 2, creating a low-pressure Venturi vacuum in the mixing chamber.

Kinetic Energy Transfer: Dry garnet abrasive is sucked into the chamber, mixing with the water stream. The high-speed garnet particles act as microscopic cutting teeth, shearing away material at the grain level.

Zero Thermal Stress (No HAZ): Unlike laser or plasma cutting, waterjet machining is a purely cold mechanical process. Materials suffer zero heat distortion, micro-cracking, or structural weakening along cut edges.

take Care¶

Human Risk (High-Pressure Cutting & Flying Debris): The cutting jet operates at pressures up to 10,000\text{ PSI} and will instantly sever skin and tissue. NEVER reach into the enclosure while the pump is active. Safety glasses and ear protection are mandatory due to noise levels and potential abrasive spray.

Human Risk (Hazardous Waste Slurry): Spent garnet slurry mixed with heavy metal particles (brass, leaded steel, copper) must be dried and disposed of according to hazardous waste guidelines. Never dump raw spent slurry down municipal drains.

Machine Risk (Nozzle Clogging & Orifice Wear): Wet garnet or moisture in the hopper line causes abrasive clogs. Running the high-pressure stream without abrasive flow will rapidly score and ruin the tungsten carbide nozzle.

Calibrate¶

Nozzle Height Gauge Calibration:

Place raw stock onto the corrugated bed.

Lower the nozzle carriage manually until the metal calibration touch plate resting on top of the substrate just slides snugly under the nozzle tip (0.060” / 1.5\text{ mm} gap).

Abrasive Flow Rate Verification:

Perform an abrasive pinch valve flow test before cutting. Collect dry garnet for 60 seconds; verify flow rate measures 0.33\text{ lb/min} \ (150\text{ g/min}) to ensure clean cutting without nozzle flooding.

Control¶

DXF/SVG Prep: Design 2D vector profiles in CAD. Ensure closed loops for vector cutouts and set inner cutouts to run before outer perimeter profiles.

WAM Slicing Setup:

Import DXF into WAM online/desktop software.

Select material type (e.g., 6061-T6 Aluminum, 304 Stainless, Borosilicate Glass) and thickness.

Set cut quality per edge: Fast (rough profile), Medium (standard structural), or Fine (smooth mating surfaces).

Save output file to SD Card / Direct USB.

Hardware Execution:

Confirm water supply tap is open and drainage filter bags are clean.

Check garnet hopper level (minimum 5\text{ lbs} dry 80\text{ mesh} garnet).

Secure stock with material hold-down clamps to prevent floating or shifting.

Select file on WAZER control panel, confirm nozzle height, and press START.

Create¶

Heat-Sink Enclosure Baseplate: Cut a 1/4” \ (6.35\text{ mm}) T6-6061 Aluminum structural bottom plate with intricate heat-dissipating fins and mounting holes for the smart light project—achieving clean metallic edges with zero thermal warping.

View 2: Substrate Mechanics & Edge Quality Tuning¶

Conceive¶

Substrate material stock transitions from thick raw plate stock to finished structural components or tapered/gouged scrap based on cutting speed, abrasive density, and substrate hardness.

Actors: 6061-T6 Aluminum, 304 Stainless Steel, Carbon Fiber Sheet, Borosilicate Glass, 80\text{ Mesh} Garnet, Water Pressure.

Actions: High-speed rough profiling, fine edge finishing, pierce delay sequencing, delamination prevention.

Context¶

Selecting appropriate cut quality modes prevents edge taper (\sim 1^\circ - 2^\circ at high speeds) and prevents composite delamination during initial jet piercing passes.

Course Documentation Link: [Majik Faktory Material Safety Data Sheets (MSDS)](../../unit-1/material-safety.md)

Course Documentation Link: [Unit 1: Waterjet Kerf & Taper Compensation](../../unit-1/waterjet-taper.md)

Comprehend¶

The erosion rate varies directly with material hardness and density (80\text{ Mesh} Garnet baseline):

Substrate Material	Thickness	Cut Quality Setting	Pierce Method	Operational Result & Rules
6061-T6 Aluminum	1/8” \ (3.17\text{ mm})	Medium	Standard Jet	Fast, burr-free cuts. Ideal for internal chassis brackets.
6061-T6 Aluminum	1/4” \ (6.35\text{ mm})	Fine	Standard Jet	Smooth edge finish; minimal kerf taper (\approx 0.005”).
304 Stainless Steel	1/8” \ (3.17\text{ mm})	Fine	Direct Pierce	Dense material; slow feed rate prevents jet deflection gouging.
Carbon Fiber (CFRP)	3\text{ mm}	Fine	Low-Pressure Low-Vacuum	Prevents resin-matrix delamination at pierce entry points.
Borosilicate Glass	6\text{ mm}	Fine	Soft Pierce / Water First	Prevents thermal shock cracking; requires rubber under-bed mat.
Copper / Brass	1/8” \ (3.17\text{ mm})	Medium	Standard Jet	Easily cut without thermal reflection hazards seen in lasers.

take Care¶

Delamination Hazard (Composites): Direct high-pressure piercing can force water into carbon fiber or fiberglass layers, splitting the laminate. Always use the Low-Pressure Pierce or Pre-Drilled Hole technique for composites.

Brittle Fracture Hazard (Glass/Ceramics): Hardened glass cannot be cut (it will shatter instantly). Always verify glass is non-tempered annealed or borosilicate before cutting.

Calibrate¶

Taper Measurement & Kerf Calibration:

Cut a test square (1.000” \times 1.000”) in target material stock at Medium quality.

Measure top dimension and bottom dimension with digital micrometers.

Taper Angle calculation: \Delta T = \text{Top Width} - \text{Bottom Width}. Adjust WAM cut speed to Fine to reduce edge taper when tight tolerance assembly is required.

Control¶

Always clamp materials down tightly—water turbulence inside the tank will lift unclamped sheets.

Ensure water level in the tank covers the substrate by 0.25” during cutting to reduce operational noise and spray.

Inspect abrasive supply lines for kinks or condensation before executing multi-hour cutting jobs.

Create¶

Water-Cut Tempered-Aesthetic Diffuser Plate: Cut an intricate 6\text{ mm} glass faceplate with internal mounting cutouts to serve as the front faceplate for the Unit 4 smart light housing.

View 3: Maintenance & Hydraulic System Integrity¶

Conceive¶

The WAZER Pro transitions from a high-precision cold cutter to a flooded, low-pressure mechanical breakdown if abrasive lines clog, pump seals wear out, or filter bags fill with waste slurry.

Actors: Student operator, lab technician, high-pressure seal kit, replacement orifice, nozzle tube, particulate filter bags, hopper drying agent.

Actions: High-pressure seal replacement, nozzle unclogging, slurry filter pouch cleaning, pump oil level checks.

Context¶

Routine preventive maintenance ensures continuous high-pressure hydraulic output and protects sensitive pump components from abrasive contamination.

Course Documentation Link: [Lab Maintenance Log & WAZER Pro Service Records](../../lab/wazer-maintenance.md)

Comprehend¶

High-pressure water carrying abrasive particles eventually wears down even tungsten carbide nozzles and sapphire orifices. As the orifice wears larger (>0.018”), hydraulic pressure drops below effective cutting thresholds, causing incomplete cuts and severe edge taper.

take Care¶

High-Pressure Line Danger: Never disconnect high-pressure stainless steel lines while the pump system is pressurized. Relieve system pressure via the control panel before servicing.

Electrical Hazard: The pump box operates on high-voltage AC circuits near water. Keep all electrical enclosures sealed and dry at all times.

Calibrate¶

Nozzle Wear Inspection:

Periodically check the nozzle exit bore with a pin gauge. If the bore diameter expands beyond 0.050” \ (1.27\text{ mm}) due to garnet erosion, replace the nozzle tube to restore cut precision.

Filter Bag Differential Pressure:

Inspect water drainage filter bags. Replace or flush filter pouches when drainage rate drops below incoming water supply volume to prevent tank overflow.

Control¶

Daily Pre-Flight: Verify dry abrasive hopper is free of moisture or clumps. Empty spent slurry bucket.

Post-Cut Flush: Run a 30-second water-only flush cycle after every job to clear lingering abrasive grains from the nozzle chamber.

Weekly Maintenance: Inspect high-pressure pump oil sight glass; check inlet water filters for sediment buildup.

Create¶

Custom Material Clamping Jig: Waterjet-cut a set of heavy-duty stainless steel edge-clamps designed to slide into the WAZER bed channels for rapid sheet setup without interfering with the nozzle path.

The video below demonstrates setup, abrasive loading, stock clamping, and nozzle height calibration on a desktop abrasive waterjet system.