Week 13. Molding and casting

Fusion 360

First I designed the mold. I drew a sketch of the shape I wanted. I used ellipse with different radius to create all the shapes. I created sketches only one on side and then used the symmetry tool to make it symmetrical for the other side.

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I used extrude to make the shape 3D. Here are the measurements for extrude:

  • 35 for the face
  • 20 for ears
  • 30 for head

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To create the mold shape I started out by creating a new skech at the back of the head. I drew a rectangle and adjusted shape.

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I used fillet 3mm to create an inner rectangle.

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I selected the inner rectangle and used extrude -> join to make the bottom of the rectangle.

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I selected the outer rectangle and used extrude again.

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Mold

Here is the mold 3D printed:

mold

The materials I used:

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The ratio of the two (A and B) should be 100A : 10B. I measured as shown:

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Mixed very well:

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I popped the small bubbles that came on the surface. Here is the before and after:

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Once the mold had dried, I broke the 3D print to get it out.

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Resin

I then mixed the A and B for resin. The ratio was 1:1 this time.

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I also added some purple dye and poured the resin into my mold

mold

Final Product:

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Files

Here are the files:

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