12. Moulding and Casting¶
Group Assignment¶
Click here to group work.
From the Group Assignment, I learnt that :
1 Pay attention to protective measures during the experiment:
Personal Protective Equipment (PPE): Wear appropriate personal protective equipment, including but not limited to gloves, goggles, and long-sleeved clothing to protect your skin and eyes from irritation from silicone or its components. Ventilation: Work in a well-ventilated area and avoid inhaling vapors or gases. If indoor ventilation is insufficient, use an exhaust fan or operate outdoors.
2 During the experiment, the proportion of materials can be appropriately increased, because there will be some residue in the container, so more materials need to be reserved.
Others:
Compare Printing vs. Milling Molds
Precision and Detail:
3D Printing: High precision, suitable for complex geometries and intricate details. Consider layer resolution and potential for visible layer lines.
Milling: Can achieve high precision, especially with CNC milling. Surface finish can be very smooth depending on the tool and material.
Material Compatibility:
3D Printing: Wide range of materials (e.g., PLA, ABS, resin) but may have limitations in strength and heat resistance.
Milling: Can work with various materials including metals, plastics, and wood. Suitable for high-strength and heat-resistant applications.
Design Flexibility:
3D Printing: Greater flexibility for complex, undercut, and hollow designs.
Milling: Limited by tool access and geometry constraints but excellent for creating durable molds with simple shapes.
Conclusion:
3D Printing: Ideal for intricate designs and rapid prototyping. Best for low to medium strength requirements.
Milling: Best for high-strength molds, excellent surface finish, and materials requiring durability and heat resistance.
Individual Assignment¶
How to import SVG file into Fusion？¶
Insert the file (modify the scale value to reset the size as you need; and flip it as you need.)
To modify the file, select all elements , Unfix it.
Now you can operate the file.
I check the size, it’s big to me. I need to resize it.
Very satified with my lovely Doggie 😍😘
Get the size :
Set the auxiliary line test size, press x to switch the line type, and pressD to measure
Create a base:
Finally, Finshed!!! It looks cool to me.😍😘
Save my Design Files/ To Download¶
For DXF:
MyDoggieDxf
For STL:
MyDoggieStl
3D Print myDoggie Model¶
Re-Design¶
Extrude:
New Design:
Hero Shot :¶
Download:¶
Design a mold around the process you’ll be using, produce it with a smooth surface finish, and use it to cast parts.¶
Part 1 - Design a mold and produce it with a smooth surface¶
In this stage, materials and procedure: :
- Release Agent: In order to make the mold release better. Better use it outdoors.
- Silicone & curing agent :In order to accelerate the curing of silicone, a curing agent needs to be added. The silicone and curing agent need to be prepared in a ratio of 100:2. In actual operation, you can reserve a little more than the amount used. Because there will be some residue in the container.
- Mix the silicone and curing agent evenly and pour them into the 3D printing mold.
- If any bubbles,poke it vertically, being careful not to introduce more air.
Use Release Agent:
Weigh the net weight of the mold:
Weigh the weight of the water first, this value will be used as the reference value and calculation base for the subsequent solution ratio.
Silicone and curing agent mixture:
Stir evenly:
Pour into the mold and remove bubbles:
Part 2 - Use Mold to cast parts¶
Materials we need in this stage:
- The mold after demoulding;
- AB water: A water and B water are mixed in a ratio of 1:1 and quickly introduced into the mold; it can solidify and form after 90 seconds
HeroShot - My mold is demolded and formed! !¶
AB water: A water and B water are mixed in a ratio of 1:1
HeroShot - my lovely doggie !¶
Finally , My loveeely dogggie is on-line !!!🤩😍😍
Notice: The name is to record the maker, and the letter T can be used as a necklace for the dog! !🤩😍😍