| Instructions on Application of General Purpose Tool Resin, Tooling PAU20 | ||
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| Product Department - Product Application Engineering Team | Project date: 11/07/2024 | Version: V1.0 |
¶ Material Information
¶ Overview
Tooling PAU20 is a hard, tough PC-like material that performs excellent in precision, dimensional stability and building ability. It is effortless to remove printed supports while leaving few residues. Printed objects are easy to wash, fine in surface, stable in color, high in opacity, and are not easily broken during assembly or use thanks to its good properties. The material is ideal for mass production of fixtures and structure parts like camera brackets, bike handles and so.
¶ Recommendations on Applications
Mass production of fixtures and structure parts
¶ Performance
| Basic config. | |||
| Categories | Properties | Criteria | Value |
| Rigidity | Tensile Strength (MPa) | ASTM D638 | 68.5 |
| Flexural Strength (MPa) | ASTM D790 | 109.13 | |
| Flexural Modulus (MPa) | ASTM D790 | 2285 | |
| Impact Strength (Notched) (J/m) | ASTM D256 | 25.1 | |
| Essential Work of Fracture (J/m²) | ISO 20795 | 7593 | |
| Heat resistance | Heat deflection temperature (0.45Mpa) (℃) | ASTM D648 | 58 |
| Mechanical | Shore D Hardness | ASTM D256 | 84 |
| Viscosity (mPa·s) | ASTM D792 | 3402 | |
| Water Sorption (%) | ASTM D570 | 1.86 | |
| Aging testing | UV aging testing for 600 h (= being placed in room for 8 years, outdoors for 1 year) | ASTM G154 | Passed |
| Humidity and heat aging testing | GB/T 2423.3 | Passed | |
Note: The properties were obtained from printed objects after curing in Performance mode in HeyGears UltraCraft Cure.
¶ Design Suggestions
| Construction Performance Parameters | |
| Items | Pulsing release resin tank |
| Gap width (mm) | 0.2 |
| Overhang length (mm) | 1.4 |
| No support offset (°) | 30 |
| Wall thickness (mm) | 0.16 |
| Hole diameter (mm) | 0.5 |
| Pillar diameter (mm) | 0.3 |
Note: The table presents the design requirements to guarantee at least the minimum construction performance of the material. Design parameters below them would lead to detail missing or print failure.
¶ Recommended Design Parameters
Design parameters are recommended below for various kinds of structures which guarantee the printing success rate.
¶ Thickness of Thin Wall Structures
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| Recommended values | |||||
| Thin wall area (mm²) | 5*5 | 10*10 | 50*50 | 100*100 | 200*200 |
| Min. thickness of wall that provides support (mm) | 0.3 | 0.35 | 0.8 | / | / |
| Min. thickness of wall that does not provide support (mm) | 0.3 | 0.35 | 0.8 | / | / |
| Typical scenarios: |
1.Construction parts and shells of consumer electronics; 2.Thin walls on figures. |
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| Testing method by HeyGears: |
1.The test was finished within 2 hours after part removal and washing; 2.The printed object was visually inspected, from the thinnest to the thickest areas, to see if it was intact with no obvious deformation or misalign lines. |
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¶ Hole
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| Types: | Straight, bent, blind | ||||
| Hole Depth (mm) | 2 | 10 | 30 | 40 | 50 |
| Min. inner diameter of straight hole (mm) | 0.5 | 0.7 | 0.8 | 0.8 | 0.9 |
| Min. inner diameter of bent hole (mm) | 0.5 | 0.8 | 0.8 | 1.0 | 1.2 |
| Min. inner diameter of blind hole (mm) | 0.5 | 0.6 | 0.6 | 0.8 | 0.9 |
| Typical scenarios: |
1.Sound holes in earphones, charging holes; 2.Small tubes, details on figures; 3.Industrial assembly parts. |
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| Testing method by HeyGears: |
1. All holes were completely cleaned (washed and dried for about 3~5 times); 2. Straight holes: HeyGears team directed the light source at the holes from one end, inspected at the other end to see if the light could be seen, and recorded the minimum data that passed the test; 3. Blind holes: HeyGears team pointed a wire through the holes to see if it could reach the bottom (the other end), and recorded the minimum data that passed the test; 4. Bent holes: HeyGears team blew in the holes from one end with an air blow gun or an injector, inspected if the holes were ventilated, and recorded the minimum data that passed the test. |
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¶ Pillar
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| Types: | Pillars providing support and not providing support | ||||
| Depth/Height (mm) | 7 | 10 | 20 | 40 | 50 |
| Min. diameter of pillar providing supports (mm) | 0.4 | 0.4 | 0.5 | 0.7 | 0.8 |
| Max. diameter of pillar providing supports (mm) | 0.3 | 0.4 | 0.5 | 0.5 | 0.6 |
| Typical scenarios: |
1.Positioning pins, connection of assembly parts; 2.Details, tubes, fingers; 3.Thin long structures like combs and needles. |
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| Testing method by HeyGears: |
1.The test was finished within 2 hours after part removal, washing and curing; 2.The printed object was visually inspected to see if it was intact with no obvious deformation or misalign lines; 3.The minimum data that passed the test was recorded. |
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¶ Width of Raised & Depressed Details
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| Types: | Raised and depressed | ||||
| Depth (mm) | 0.4 | ||||
| Min. width of depressed details (mm) | 0.08 | ||||
| Min. width of raised details (mm) | 0.1 | ||||
| Typical scenarios: |
1.Tagged text; 2.Special texture. |
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| Testing method by HeyGears: |
1.The test was finished after part removal, washing and curing; 2.The printed object was visually inspected to see if the details were intact and clear with no obvious missing; 3.The minimum data that passed the test was recorded. |
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¶ Drain Hole
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| Types: | Any type of drain holes in hollowed structures | ||
| Size of the area to add drain holes (mm²) | 10*10 | 20*20 | 30*30 |
| Min. diameter of drain hole (mm) | 1.5 | 2.0 | 2.5 |
| Typical scenarios: | 1.Drain holes in hollowed structures. | ||
| Testing method by HeyGears: |
1.During washing, the printed object was washed and blown dry 5 times for testing; 2.The holes were visually inspected to see if they had been cleaned completely with no resin or misalign lines; 3.The minimum data that passed the test was recorded. |
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¶ Acute Angle
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| Types: | Acute parts of various wall thickness | ||||
| Wall thickness (mm) | 1 | 2 | 3 | 4 | 5 |
| Smallest acute angle (°) | 5 | 5 | 5 | 10 | 10 |
| Typical scenarios: | 1.Acute parts | ||||
| Testing method by HeyGears: |
1.The test was finished within 2 hours after part removal and washing; 2.The printed object was visually inspected to see if the acute parts were intact with no obvious deformation or misalign lines; 3.The minimum data that passed the test was recorded. |
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¶ Gap
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| Types: | Gaps between curved parts and gaps between flat parts | ||||
| Depth/Height of curved part (mm) | 5 | 10 | 15 | 30 | 50 |
| Gap width (mm) | 0.3 | 0.3 | 0.35 | / | / |
| Depth/Height of flat part (mm) | 5 | 10 | 20 | 30 | 50 |
| Gap width (mm) | 0.3 | 0.35 | 0.35 | / | / |
| Typical scenarios: |
1.One-piece structure (gears, architecture miniatures) 2.Details on surface, texture structures |
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| Testing method by HeyGears: |
1.The test was finished within 2 hours after part removal and washing; 2.Printed connection parts were visually inspected if they could be separate intactly. 3.The minimum data that passed the test was recorded. |
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¶ Gap in Connections
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Gap in Connections
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| Print part | Fit, tight, loose | ||||
| Images | Results | Tight (mm) | Fit (mm) | Loose (mm) | |
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Square | ＜-0.04 | （-0.04）-（-0.01） | ＞-0.01 | |
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Circle | ≤-0.03 | （-0.03）-（0） | ＞0 | |
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Ball | ＜-0.04 | （-0.04）-（-0.02） | ＞-0.02 | |
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Polygonal | ＜-0.02 | （-0.02）-（-0.01） | ＞-0.01 | |
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C-shaped/U-shaped | ＜-0.03 | （-0.03）-（0） | ＞0 | |
| Testing method by HeyGears: |
1. Test was done after part removal, washing and curing. 2. Column-shaped connection structures were taken out from the sprue. 3. The structures were assembled, from the loosest ones to the tightest ones (the order might differ due to subjective thoughts); 4. Data was recorded according to the assembly results. |
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¶ Gap in Moving Parts
| Results | Images | PAU20 | |
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Min Gap in Moving Pieces |
Attached |
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≤0.20mm |
| Not attached |
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＞0.20mm |
¶ Tolerance
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Printed dimensions and tolerances |
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| Types: | Any structure | ||
| Max. value among dimensions of a printed object (mm) | 20 | 50 | 100 |
| Tolerances (mm) | ±0.04 | ±0.08 | ±0.20 |
| Testing method by HeyGears: |
1.Thin walls or other special structures were not considered; 2.Measurement was done within 2 hours after part removal, washing and curing; 3.Printing parameters were the same when using Pulsing Release Resin Tank and using regular resin tank. |
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¶ Process and Configuration
¶ Support Parameters
| Support parameters (pulsing release resin tank) | ||
| Support areas | Parameter items | Default values |
| Support body | Lift height (mm) | 5 |
| Trunk diameter (mm) | 0.75 | |
| Overhang angle (°) | 40 | |
| Support density | Anchor distance (mm) | 2 |
| Border anchor distance (mm) | 2 | |
| Connection | Top diameter (mm) | 0.3 |
| Length (mm) | 1.5 | |
| Contact | Contact shape | Sphere |
| Diameter (mm) | 0.4 | |
| Embedded depth (mm) | 0.25 | |
¶ Parameters for Slicing in Other Slicer Software (Not Recommended)
| Chitubox (printing with pulsing release resin tank) | ||
| Support areas | Parameter items | Default values |
| Basic parameters | Lift height (mm) | 5 |
| Raft shape | Cross grid | |
| Raft thickness (mm) | 1.0 | |
| Overhang angle (°) | 45 | |
| Support density | Anchor distance (mm) | 2.5 |
| Connection | Top diameter (mm) | 0.36 |
| Connection length (mm) | 1.5 | |
| Trunk diameter(mm) | 1.0 | |
| Contact | Contact shape | Sphere |
| Diameter (mm) | 0.6 | |
| Embedded depth (mm) | 0.35 | |
| Voxeldance Tango (printing with pulsing release resin tank) | ||
| Support areas | Parameter items | Default values |
| Basic parameters | Lift height (mm) | 5 |
| Raft shape | Convex hull | |
| Splint thickness (mm) | 1.0 | |
| Overhang angle (°) | 45 | |
| Support density | Anchor distance (mm) | 2.0 |
| Connection | Top diameter (mm) | 0.36 |
| Connection length (mm) | 1.5 | |
| Trunk diameter(mm) | 1.0 | |
| Contact | Contact shape | Sphere |
| Diameter (mm) | 0.6 | |
| Embedded depth (mm) | 0.35 | |
Note: It's advised to use a “safer” parameter configurations and have some tests first, as HeyGears printers cannot guarantee a high printing success rate for models sliced with a third-party slicer software which does not enjoy HeyGears print strategies.
¶ Recommended Washing
| Material Cleaning Parameters | ||||
| Material | Cleaning device | Washing Settings | Cleaning Solution | Washing time |
| Tooling PAU20 | UltraCraft Wash | Rotation speed 180r/min | 95% alcohol | 3-min rough wash + 2-min fine wash |
| Ultrasonic Cleaner | Power 240Kw | 95% alcohol | 2-min rough wash + 1-min fine wash | |
Note 1: Rough wash refers to the behavior of washing off most liquid resin on the printed object with used alcohol (used for more than 3 batches of prints); Fine wash refers to the behavior of well cleaning details of the printed object with clean alcohol (used for less than 3 batches of prints).
Note 2: Washing finished, it's advised to blow dry the print with compressed air or bake it dry in a baker at 50℃ for 10min. Please AVOID submerging the print in alcohol for a long time (over 10 min in total), which might impact the resin's performance and the print's dimension.
¶ Recommended Curing
| Material Curing Parameters | ||||
| Material | Curing mode | Heat or Not | Curing Medium | Curing Settings |
| Tooling PAU20 | Performance | Yes | Air | 60℃ /45min |
Note: Cure the print with HeyGears UltraCraft Cure. It’s advised to send the curing job from HeyGears Blueprint to the device first and then start curing on the device, as the job sent from Blueprint would enjoy a more advanced curing process and have an even better curing result.
¶ Operation Steps
¶ Slicing in Blueprint Studio
| Step 1: Enter Slicer in Blueprint Studio. | Step 2: Choose Tooling PAU20. |
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| Step 3: Import models in a new project by clicking Import icon or directly dragging models to the Studio. | Step 4: In the Prepare page, use Rotate, Scale, Hollow, Hole, Label, Duplicate and other tools based on your needs. |
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| Step 5: Run Auto-layout. | Step 6: Run Auto-support, choose Truss support and generate supports. |
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| Step 7: Run Slicing. You may edit the slice file name if needed. | Step 8: After slicing is done, you may check slice files and send print jobs at the [Slice Files] page |
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¶ Printing and Post-Processing
| Step 1: Send the slice files to your printer on Blueprint platform, or import them to your printer via USB flash drive. | Step 2: Printing. |
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| Step 3: Set the washing settings on UltraCraft Wash or in Blueprint platform when sending wash jobs. | Step 4: Set the curing settings on UltraCraft Cure or on Blueprint platform when sending curing jobs. |
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¶ Finishing
¶ Removing supports
1.For most models, removing by hand will be fine (twisting off the support structures);
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| Remove supports by hand | Result of removing supports by hand |
2.For models with thin wall, it's better to remove with tools (pliers or art knife).
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| Remove supports with tweezers | Remove supports with art knife |
¶ Sanding and Spray-Coating
1.Grinding by hand
Most models can be polished with tools starting from 300-400 grit, to 600 grit, then 1000 grit. Polishing till 1000 grit is suggested for models to be coated. Models with thin walls are recommended to start from higher grit, such as 500-600, lowering the risk of damage.
Grinding by hand
2.Washing (Optional)
Wash off the dust from grinding with water first. Then wash the print part until clean with microfiber cloth and IPA/95% alcohol.
3.Spraying
Dry the model prior to spraying, or the paint quality might be affected. Spray the model in a dust-free environment. Some UV coat might turn 3D-printed objects more crispy, so it's advised to have some tests in advance.
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| After sanding | After spray-coating |
¶ Presentation of Finished Model
¶ Precautions
¶ Precautions and Warnings
1.Please make sure to keep on protective wear (protective gloves and goggles) during the process.
2.Please avoid direct contact with liquid resin or the print parts after curing, to prevent irritation to the eyes or skin (which might cause sensitization).
3.If the product gets into the eyes, rinse immediately with clean water and contact a doctor.
4.If the product contacts with your skin, rinse immediately with clean water and wash thoroughly with soap.
5.The product should only be used after training by qualified personnel.
6.After each use, please be sure to immediately close the bottle cap to keep the bottle sealed.
7.Before use, please shake the resin well and it’s recommended to stir the resin in the resin tank before printing, to ensure that there is no significant sediment of the color powder.
8.After pouring into the resin tank, the resin should be kept away from light. If not the resin should be filtered and poured back into the resin bottle, avoiding staying for more than 7 days in the resin tank to prevent moisture absorption and degradation, which could lead to print failures.
¶ Storage and Transportation
1.The product should be stored in an indoor environment with a temperature of 15°C ~ 28°C, free from corrosive gases, well-ventilated, and protected from high temperatures, humidity, and direct sunlight.
2.The product should be transported in an environment with a temperature of 0°C ~ 45°C, and during transportation, it should be protected from heavy pressure, direct sunlight, and exposure to rain or snow.
3.The shelf life of the product is 18 months.
¶ Disposal
Please refer to the MSDS for precise information. Liquid resin should not be directly discharged. Please allow it to be fully cured into a solid under sunlight before disposing of it according to local regulations.