| Instructions on Application of Wax Casting Resin, Casting PAC10 | Project date: 9/14/2024 | Version: V1.0 |
¶ Material Information
¶ Overview
Casting PAC10 is a solid-color wax material that features strong detail reproduction and construction performance and fair toughness, strength and hardness. It is also high in precision and dimensional and color stability.With a low expansion rate, the material produces little odor or ash, can be burnt out resulting in a smooth cast. It is ideal for lost-wax casting applications such as accessories, jewelry and industrial parts and can meet the demands of precision casting of lightweight jewelry (rings, earrings, pendants, etc.), heavy jewelry (bracelets, heavy rings, etc.) and exquisite characteristic parts (ear studs, net-shaped accessories, etc.).
¶ Recommendations on Applications
1. Lightweight jewelry (rings, earrings, pendants, etc.)
2. Exquisite characteristic parts (ear studs, net-shaped accessories, etc.)
3. Heavy jewelry (bracelets, heavy rings, etc.)
¶ Performance
| Basic config. | |||
| Categories | Properties | Criteria | Values |
| Rigidity | Tensile Strength (MPa) | ASTM D638 | 20.03-21.83 (21.05) |
| Tensile Modulus (MPa) | ASTM D638 | 407.41-448.27 (431.71) | |
| Flexural Strength (MPa) | ASTM D790 | 28.32-30.14 (29.54) | |
| Flexural Modulus (MPa) | ASTM D790 | 609.40-718.24 (679.86) | |
| Toughness | Elongation at Break (%) | ASTM D638 | 10-20 (15.75) |
| Impact Strength (Notched) (J/m) | ASTM D256 | 12.51-13.52 (12.89) | |
| Thermal decomposition | Start/End Decomposition Temperature (℃); Ash (wt%) | ASTM E1131 | 275/800; 0.02 |
| Physical Properties | Shore D Hardness | ASTM D2240 | 63.5 |
| Viscosity (mPa·s) | ASTM D4212 | 259 | |
| Wax Content (wt%) | / | 70~75 | |
Note: The properties were obtained from printed objects after dry curing for 20 min in Standard mode in HeyGears UltraCraft Cure.
¶ Design Suggestions
| Construction performance | |
| Items | Pulsing release resin tank |
|---|---|
| Gap width (mm) | 0.15 |
| Overhang length (mm) | 1.4 |
| No support offset (°) | 25 |
| Wall thickness (mm) | 0.12 |
| Hole diameter (mm) | 0.2 |
| Pillar diameter (mm) | 0.2 |
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) | 0.2 | 0.2 | 0.8 | / | / |
| Min. thickness of wall that does not provide support (mm) | 0.18 | 0.18 | 0.8 | / | / |
| Typical scenarios: |
1.Thin-walled structures of accessories and jewelry; 2.Thin-walled structures of regular type of print parts. |
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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 |
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| Hole depth (mm) | 2 | 10 | 30 | 40 | 50 |
| Min. inner diameter of straight hole (mm) | 0.3 | 0.4 | 0.4 | 0.5 | 0.6 |
| Min. inner diameter of bent hole (mm) | 0.4 | 0.8 | 0.9 | 1.0 | 1.2 |
| Min. inner diameter of blind hole (mm) | 0.4 | 0.4 | 0.5 | 0.5 | 0.6 |
| Typical scenarios: |
1.Holes in accessories and jewelry; 2.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 |
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| Depth/Height (mm) | 3 | 7 | 10 | 20 | 40 |
| Min. diameter of pillar providing supports (mm) | 0.2 | 0.4 | 0.4 | 0.6 | 0.9 |
| Max. diameter of pillar providing supports (mm) | 0.2 | 0.3 | 0.5 | 0.8 | 1.0 |
| Typical scenarios: |
1.Connection structures and prongs of accessories and jewelry; 2.Details on print parts, needle-shaped and pillar-shaped structures. |
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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) | 0.12 | ||||
| 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 |
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| Size of the area to add drain holes (mm²) | 10*10 | 20*20 | 30*30 |
| Min. diameter of drain hole (mm) | 1 | 1.5 | 2 |
| 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 |
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| Wall thickness (mm) | 1 | 2 | 3 | 4 | 5 |
| Smallest acute angle (°) | 15 | 15 | 15 | 15 | 20 |
| 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 |
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| Depth/Height of curved part (mm) | 5 | 10 | 15 | / | / |
| Gap width (mm) | 0.25 | 0.25 | 0.25 | / | / |
| Depth/Height of flat part (mm) | 5 | 10 | 20 | 30 | 50 |
| Gap width (mm) | 0.25 | 0.3 | / | / | 0.3 |
| 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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| Results | Fit, tight, loose | ||||
| Images | Shapes | Tight (mm) | Fit (mm) | Loose (mm) | |
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Square | ≤-0.04 | (-0.04) - (-0.02) | ≥-0.02 | |
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Circle | ≤-0.03 | (-0.03) - (-0.02) | ≥-0.01 | |
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Ball | ≤-0.04 | (-0.04) - (0) | ≥0 | |
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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) - (-0.01) | ＞0.01 | |
| 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 | PAC10 | |
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Min Gap in Moving Pieces |
Attached |
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＜0.25mm |
| Not Attached |
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≥0.25mm |
¶ Tolerance
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Printed dimensions and tolerances |
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| Types: |
Any structure |
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| Max. value among dimensions of a printed object (mm) | 20 | 50 | 100 | ||
| Tolerance（mm） | ±0.03 | ±0.1 | ±0.15 | ||
| 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; |
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¶ Process and Configuration
¶ Support Parameters
| Support parameters | |||
| Support areas | Parameter items | Default values | Min. values |
| Support body | Lift height (mm) | 5 | 3 |
| Trunk diameter (mm) | 0.75 | 0.6 | |
| Overhang angle (°) | 40 | 35 | |
| Support density | Anchor distance (mm) | 1 | 1 |
| Border anchor distance (mm) | 2 | 2 | |
| Connection | Top diameter (mm) | 0.2 | 0.15 |
| Connection length (mm) | 1.5 | 1.5 | |
| Contact | Contact shape | Sphere | Sphere |
| Diameter (mm) | 0.25 | 0.2 | |
| Embedded depth (mm) | 0.15 | 0.12 | |
Notes: Casting PAC10 is mainly targeted at the application of jewelry, which is demanding in the surface quality of print parts such as smoothness. For a success print, it's advised not to change the support parameters when printing with a regular resin tank for the first time. Sufficient supports are needed on areas such as lowest points and islands, considering the center of gravity shifting during the process of printing, which might cause the object to shake and lead to misalignment. Appropriate improvements might be done on support parameters after the first print is successfully finished (Values may be reduced properly for lightweight jewelry).
¶ Parameters for Slicing in Other Slicer Software (Not Recommended)
| Chitubox | ||
| Support areas | Parameter items | Default values |
| Basic parameters | Z lift height (mm) | 5 |
| Raft shape | Cross grid | |
| Raft thickness (mm) | 1.0 | |
| Overhang angle (°) | 45 | |
| Support Density | Anchor distance (mm) | 1.0 |
| Connection | Top diameter (mm) | 0.3 |
| Connection length (mm) | 1.5 | |
| Trunk diameter (mm) | 1.0 | |
| Contact | Contact shape | Sphere |
| Diameter (mm) | 0.35 | |
| Embedded depth (mm) | 0.2 | |
| Voxeldance Tango | ||
| Support areas | Parameter items | Default values |
| Basic parameters | Z lift height (mm) | 5 |
| Raft shape | Convex hull | |
| Raft thickness (mm) | 1.0 | |
| Overhang angle (°) | 45 | |
| Support density | Anchor distance (mm) | 1.0 |
| Connection | Top diameter (mm) | 0.3 |
| Connection length (mm) | 1.5 | |
| Trunk diameter(mm) | 1.0 | |
| Contact | Contact shape | Sphere |
| Diameter (mm) | 0.35 | |
| Embedded depth (mm) | 0.2 | |
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.
¶ Washing
| Material Cleaning Parameters | ||||
| Material | Device | Settings | Cleaning solution | Washing time |
| Casting PAC10 | HeyGears UltraCraft Wash | Rotation speed 160r/min | 95% alcohol or IPA | 1-min rough wash + 2-min fine wash |
| Ultrasonic Cleaner | Power 240Kw | 95% alcohol or IPA | 1-min rough wash + 2-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, or cause material flushing.
¶ Curing
| Recommended Process | ||||
| Material | Curing mode | Heat or not | Curing medium | Settings |
| Casting PAC10 | Rapid | No | Air | At room temperature for 20 min |
Note: Cure the print with HeyGears UltraCraft Cure.
¶ Operation Steps
¶ Slicing in Blueprint Studio
| Step 1: Enter Slicer. | Step 2: Create a new project and choose the corresponding material. |
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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: In the Support page, generate and edit supports based on your needs. |
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| Step 7: Run Slicing. You may sync the slice file to Cloud if you need (which enables you to send the slice file via Cloud to your internet-connected printer). | 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: Washing. Set the washing settings on UltraCraft Wash or in Blueprint platform when sending wash jobs. | Step 4: Curing. 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 of special structures, it's better to remove with tools (pliers, tweezers or art knife).
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| Remove supports with pliers | Remove supports with tweezers |
¶ Sanding
1.Sanding by hand
Most models can be polished with tools starting from 300-400 grit, to 600 grit, then 1000 grit. Models with thin walls are recommended to start from higher grit, such as 500-600, lowering the risk of damage.
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| Before | After |
2.Washing (Optional)
Wash off the dust from grinding with water first. Then wash the print part with microfiber cloth and IPA/95% alcohol, to wash off dusts or reduce blushing due to improper operations like scratches. After washing, the print part can be cast directly.
¶ Reference for Casting
Investment powder: Certus Optima Investment Powder/Yihui Castino No.99 Jewellery Investment Powder/Yihui Castino YHR7097 Resin Investment Powder
Mixing ratio: Refer to the ratio recommended by the manufacturer. Common water/powder ratio is (38~40):100.
¶ Presentation of Finished Model
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| Copper casting | Silver casting | Gold casting |
¶ 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 printed for 3 days, 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.