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Changes for page Desktop Waterjet Cutting

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Summary

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1 1  |=(((
2 -(((
3 -WAZER Desktop Waterjet Cutting Machine
4 -)))
2 +{{{WAZER Desktop Waterjet Cutting Machine}}}
5 5  
6 -(((
7 7  [[Specs>>https://www.matterhackers.com/store/l/wazer-desktop-waterjet-cutter-machine/sk/MVN5VKM5]]
8 -)))
9 9  )))|=Working Area
10 10  (LxW)|=(% style="width: 376px;" %)Max Allowable Working Pressure|=(% style="width: 307px;" %)Max Working Flow Rate
11 11  |[[image:WazerPhoto.png||alt="omtechaf3555.jpeg" width="200"]]|(((
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21 21  (1.7 L/min)
22 22  \\(at 4,000 psi)
23 23  
20 +While CO2 laser cutters can cut a variety of materials, we stock sheets of Acrylic and Birch Plywood in 12x24 inch sizes, and 1/8" and 1/4" thicknesses. Keep in mind these dimensions are nominal, and may not be precisely accurate.
24 24  
22 +== ==
25 25  
26 26  = About the Waterjet =
27 27  
28 -[[Waterjet cutting>>https://en.wikipedia.org/wiki/Water_jet_cutter]] is the process of using a high pressure jet of water to cut a material. 
26 +[[Waterjet cutting>>https://en.wikipedia.org/wiki/Water_jet_cutter]] is the process of using a high pressure jet of water to cut a material.  --laser to vaporize a material, so that the laser beam cuts through the material. When this is combined with a CNC tool head and both power and speed are balanced properly, this process allows the user to create flat parts from sheets of material, using 2D CAD drawings.--
29 29  
30 30  The waterjet has a hydraulic power output of 820 W. There are a variety of materials that the waterjet can cut, example of allowed materials include acrylic, agate, aluminum, borosilicate, brass, carbon fiber, ceramic tile, copper, gabbro, fused glass, graphite, granite, HDPE, marble, memory foam, mild steel, neoprene, polycarbonate, polyethylene, polyurethane, porcelain tile, silicone, spring steel, stained glass, stainless steel, titanium, and tool steel. Materials that are water soluble or shatter under high pressure are not suitable for waterjet cutting.
31 31  
32 -**Advantages:**
30 +**Advantages: (Needs to be edited still)**
33 33  
34 -* Waterjet cutting is a cold cutting process, meaning there is no heat-affected zone (HAZ), so the material’s mechanical and microstructural properties remain unchanged.
35 -* It can cut a wide variety of materials, including metals, ceramics, composites, glass, and polymers, making it extremely versatile.
36 -* It allows for thicker material cutting compared to many other methods (including laser cutting).
32 +* Laser cutting tool heads never touch the material, leave fairly clean cuts, and are highly accurate and repeatable.
33 +* Laser cutting is far faster than manual cutting of the material, especially with repeated cuts in bulk materials.
34 +* Laser cutting allows for very small and intricate designs, which would be difficult or impossible with traditional cutting tools.
35 +* Laser cutting allows for much more efficient material usage than hand cutting in many cases.
37 37  
38 38  **Disadvantages: (needs to be edited still) **
39 39  
40 -* Waterjet cutting is generally **slower than laser cutting**, especially for thinner materials.
41 -* The equipment and operation costs can be **high**, particularly due to maintenance and abrasive material use (e.g., garnet).
42 -* There can be a **taper (slight angle) in the cut**, especially in thicker materials, affecting edge perpendicularity.
39 +* Our CO2 lasers can't cut metals, or materials that reflect/poorly absorb its wavelength at powers below 130W.
40 +* Laser cutters create a fine cutting spot size by focusing the laser through a lens, and as a result, cuts can never be completely perpendicular to the material.
41 +* In most cases, CO2 lasers have difficulty penetrating cleanly through materials greater than 1/4 inch thick.
43 43  
44 44  = Software and Usage Instructions =
45 45  
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63 63  
64 64  **Rotation:** the angle which the part needs to be rotated to
65 65  
66 -**X & Y positions:** The top left of the screen represents 0. All X and Y movements are from the top left of your part. 
65 +**X & Y positions:** The top left of the screen represents 0, and all movements are positive. The top left of a selected part can be moved to a specified position.
67 67  
68 68  **Scale:** Scale of parts can be changed by any magnitude
69 69  
70 70  **Height & Width**: Similar to scale, height and width can be changed independently.
71 71  
72 -(Be aware of total physical space that the waterjet will occupy on a material, taking into account the width of the cut itself (kerf) )
71 +(Be aware of total physical footprint that atwill occupy on a material, taking into account the width of the cut itself (kerf)
73 73  
74 -[[image:1772478615037-166.png||height="266" width="554"]]
73 +[[image:1772478615037-166.png]]
75 75  
76 76  == Materials Selection ==
77 77  
78 78  Using the first dropdown menu, select the material category. Using the second dropdown menu, select the specific material you are cutting. If the specific material is not listed, consult an RPS studio staff member. Once category and material type are selected, input the material thickness in either millimeters or inches.
79 79  
80 -[[image:1772478775055-319.png||height="264" width="550"]]
79 +[[image:1772478411142-741.png||height="281" width="234"]]
81 81  
82 -== Cutting Path Adjustments ==
81 += Machine Setup (not done :0 ) =
83 83  
84 -Change the cutting path to match the design of your file.
83 +The Long focal length lens in our large-format OMTech laser cutter allows for more efficient cuts in thicker materials. However, this comes at the cost of a slightly large spot size, and thus, less fine engraving abilities.
85 85  
86 -**Outside:** Part will be cut outside the designated lines by a user given offset.
85 +Use the table below to input the correct values for your material. Note that for engraving, the thickness does not matter, because it won't cut all the way through. We also have sample engravings at various settings in the RPS if you would like to change the depth or darkness of the engraving. Keep in mind that the depth and color might not be exact, as they depend highly on laser focus and various other environmental parameters that cannot be controlled.
87 87  
88 -**Centerline:** Part will be cut directly on the lines of your part.
87 +**Cutting Table**
89 89  
90 -**Inside:** Part will be cut inside the designated lines by a user given offset.
89 +|=**Material**|=Speed|=Max Power|=Min Power|=Passes
90 +|1/8" (3 mm) Birch Plywood|45 mm/s|70%|35%|1
91 +|1/4" (6 mm) Birch Plywood|15 mm/s|70%|35%|1
92 +|1/16" (1.5 mm) Cast Acrylic|90 mm/s|70%|20%|2
93 +|1/8" (3 mm) Cast Acrylic|55 mm/s|70%|20%|2
94 +|1/4" (6 mm) Cast Acrylic|20 mm/s|70%|70%|2
95 +|1/16" (1.5 mm) Buna N Rubber|80 mm/s|70%|20%|1
91 91  
92 -**No Cut:** Lines will not be cut
97 +**Engraving Table**
93 93  
99 +|=**Material**|=Speed|=Max Power|=Min Power|=Passes
100 +|Birch Plywood|475 mm/s|50%|35%|1
101 +|Cast Acrylic|550 mm/s|20%|20%|1
94 94  
95 -[[image:1773683954161-404.png||height="254" width="527"]]
103 +Settings can be changed within Lightburn or on the physical OMTech Laser in the highlighted portion on the display screen. Please consult with a technician before changing speeds and power on the machine.
96 96  
97 97  
98 -== Tabs and Leads ==
106 +[[image:omtech12.jpg||alt="https://wiki.rapidprototypingstudio.com/learning/omtech12.jpg" height="40%" width="40%"]]
99 99  
100 -Tabs are a connection point between your part and where it's being cut on the material. Tabs keep your part in place while being cut, and improve the overall cut accuracy by preventing your part from popping up or out of place. The default settings are that all cut paths receive a single tab, with the size based on the material, however tabs can be manually adjusted as well.
108 +== Dremel Laser Settings ==
101 101  
102 -A Lead refers to the distance that a cut will made away from the Cut Path. This is done to make sure that the pierce at the start of a cut does not remove any excess material on your part. The Lead’s location and size are designated with a blue indicator.
110 +All settings are preset within the Dremel's IP address site.
103 103  
104 -[[image:1773683858499-270.png||height="255" width="534"]]
112 +== Unsafe Materials for Laser Cutting ==
105 105  
106 -[[image:1773683891726-308.png||height="257" width="534"]]
114 +* ABS
115 +* Beryllium oxide
116 +* Carbon
117 +* Chlorinated plastics
118 +* Coated carbon fiber
119 +* Coated materials
120 +* Epoxy-based or phenolic resins
121 +* Fiberglass
122 +* Fluorine-based plastics:
123 +** PTFE (Teflon)
124 +** Fluorinated ethylene propylene (FEP)
125 +* Galvanized metal
126 +* HDPE (High-Density Poly Ethylene)
127 +* Leather, Artificial or Chrome tanned
128 +* Materials containing:
129 +** Astatine
130 +** Bromine
131 +** Chlorine
132 +** Fluorine
133 +** Formaldehyde
134 +* Wood containing:
135 +** Flame-retardants
136 +** Halogens
137 +** Iodine
138 +* Wood that has been:
139 +** Coated
140 +** Fumigated
141 +** Pressure-treated
142 +** Stained
143 +* Mirrored surfaces
144 +* Nylon
145 +* Painted material
146 +* Varnished materials
147 +* Particleboard, paneling
148 +* Polycarbonate
149 +* Polychloroprene (CR or chloroprene rubber, marketed under the brand name Neoprene)
150 +* Polypropylene foam
151 +* Polypropylene sheet
152 +* Polystyrene foam
153 +* Polyurethane
154 +* Polyurethane foam
155 +* Polyvinyl chloride (PVC)
156 +* POM Delrin/acetyl
157 +* Rubber
158 +* Styrofoam
107 107  
108 -== Cut ==
160 +== Post Processing ==
109 109  
110 -There are three setting selections for cut quality: Coarse, Medium, and Fine. Cut rate and cut quality have an inverse relationship, a faster Cut leads to lower quality, and better quality requires a slower Cut. The page includes cut details such as rate, time, abrasive use, cut cost, and cut extents.
162 +**Required PPE** for woods and acrylic:
111 111  
112 -This is the final step in file preparation, and file naming and downloading are done at this stage. A virtual cut path simulation will also be available for viewing. 
164 +* None
113 113  
114 - [[image:1773688664148-514.png||height="257" width="534"]]
166 +Once the job has concluded, allow the fumes to be vented for a minimum of 10 seconds. Please note that woods will have charring which is not harmful but may transfer to your hands or anything else it touches. If desired, you may sand the wood with the sandpaper we have in stock or use a sander. For acrylic sheets, peel off the protective film once ready for personal/project use.
115 115  
116 -= =
168 +**Required PPE** for rubber:
117 117  
118 -= Machine Setup =
170 +* Latex or Nitrile gloves
119 119  
120 -== Turning Machine On ==
172 +[[image:ppe_gloves.png||height="100"]]
121 121  
122 -1. Place SD card with part file into the right side of the wazer jet machine. **(SD cards are not provided)**
123 -1. Twist the E-Stop button to where it releases, the screen should begin to turn on.
124 -1. Check that the button on the bottom right of the machine is set to "On" (if screen is still not turning on, consult a staff member)
174 +Once the job has concluded, allow the fumes to be vented for a minimum of 30 seconds. Please note that rubber materials will char as well and it is best practice to wear gloves while handling them. Rinse the rubber cuts under water to wash off as much charred edges as possible.
125 125  
126 -== Setting Up ==
127 -
128 -1. On the starting screen there will be two options, "Select Cut File" and "Setup & Maintenance". Press the OK button to Select the Select Cut File option.
129 -1. Scroll down until the cursor is next to the file you created earlier, and hit OK
130 -1. Loosen the Nozzle securing knob, pull the nozzle up, and retighten the nozzle securing knob, press OK to home the nozzle
131 -1. Fill the grit hopper on the left side of the machine, hit OK
132 -1. Check to make sure the blue water valve is in line with the vertical pipe, hit OK
133 -1. Secure the material to the cut bed using the screws and a screwdriver, hit OK
134 -1. Now that the arrow keys can be used to move the nozzle over the material, remove the plastic cover off of the cutting head.
135 -1. Loosen the nozzle securing knob, and place the tab side of the plastic cover underneath the nozzle.
136 -1. Lower the nozzle until it makes contact with the plastic tab, and tighten the nozzle securing knob and place the plastic cover back on top of the cutting head. Hit OK.
137 -1. The next screen will have several options. Before doing anything else, **move the origin to the location of your choosing**
138 -1*. Move Origin - allows you to move the origin for the program to a location of your choosing. **DO THIS FIRST.**
139 -1*. Cut - sends you to the next screen where you must press the Start button to begin cutting.
140 -1*. Dry Run - Follows the exact cutting path of the program without firing the waterjet.
141 -1*. Check Extents - Outlines the bounding box of the area being cut
142 -1*. Restart cut - if the cut fails or stops in the middle, this will restart the program in the Dry Run state and will allow you to resume the cut at any point along the program.
143 -1*. Cancel - sends you back to the starting screen.
144 -
145 -== Run Part ==
146 -
147 -***You must remain with the machine for the entirety of the cut* **
148 -
149 -* It may be necessary to refill the water in the machine before running. Use the white 3 gallon bucket to pour more water into the tank directly. The water level should sit right below the surface of the bed.
150 -* Monitor the level of the grit while the part is running, if it's running low, machine will automatically stop the cut and shut off.
151 -* It is recommended to keep the hoppers topped off
152 -* If water starts pouring out from under the hoppers, the machine is having a backflow problem, **SHUT IT OFF with the E-Stop and notify RPS Staff.**
153 -
154 -== Clean Up ==
155 -
156 -1. Remove your part and any excess material from the bed.
157 -1. Clean material and part(s) off by dunking them in the grit catchers/water bucket. **DO NOT wash grit down the sink.**
158 -1. Pull the grit catchers out and drain the excess water back into the tank.
159 -1. Once the majority of the water is drained, dump the grit into the orange 5 gallon bucket
160 -1. Place the grit catchers back into the machine.
161 -
162 -== ==
163 -
164 -== Required PPE ==
165 -
166 -* Close toed shoes
167 -* Eye glasses/goggles
176 +If you need assistance, RPS staff are always present to help with advice! **Please ensure that you return hand tools to their proper locations, and turn off the machine once use is complete.**
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