13. Moulding and Casting#

1.Group work#

Click here for details.

Note

Design a mold around the process you’ll be using, produce it with a smooth surface finish that - does not show the production process, and use it to cast parts.

Thinking of a shape that a 3D printer could not produce, I decided to create a medal.

Create original 3D modeling.

Negative 3D modeling is created based on the body of this original 3D modeling.

Create a positive based on the negative 3D modeling body.

WAX is cut to produce molds. Using MDX-15, the upper and lower molds are cut from processable wax. After rough cutting, finish cutting is performed.

The MDX-15 uses its own software to make cutting settings.

set the cutting surface Set the cutting range.

Select the drill type.
select the path. Select the contour lines up cut.
set the various parameters required for cutting. through cutting can be left at the basic settings.

Set the cutting surface .
Set the cutting range.
Select the type of drill.
Choose the path. Select “Scan Line X.”
Configure the necessary parameters for cutting. For finish cutting, the path spacing was set to 0.5 mm.

Replace with the drill to be used this time.
Adjust the cutting range. If there is a large non-cutting area, the drill’s operating time increases unnecessarily. Specify the cutting range appropriately to minimize idle time. Also, don’t forget to set the drill’s XY axes to zero. Once the XY axes are zero, lower the drill tip until it touches the WAX and set the Z axis to zero.
Create the scan lines according to the image.
Simulate the time. This step can be skipped.
Now just wait and remove.

mix and pour the two liquids together. Weigh and mix Moldstar 31T. Mix Part A and Part B in a 1:1 weight ratio. Pour both ingredients into a cup and mix well for about 1 minute.

2. cast with SMOOTH-CAST 320 measure and mix SMOOTH-CAST 320. Mix Part A and Part B in a 100:90 weight ratio. Use disposable paper cups to measure at this time. !!! The reaction starts the moment the mixture is mixed. The pot life is about 3 minutes, but given the clay that can be poured, the experience feels much shorter. Note that all tools must be prepared in advance and mixed quickly in order to complete the casting before it hardens.
Stir well. The liquid is low viscosity. Scrape the bottom and sides thoroughly. Pour into silicone mold. Place the mold on a flat surface. Pour slowly onto the sprue (inlet).Tap the mold lightly to release air bubbles.
Wait for curing; curing time at 23°C (73°F) is approximately 10 minutes. Wait until it is completely cured before removing. After curing is complete, remove the silicon mold gently since it is flexible. Use a cutter or sandpaper to scrape off burrs and clean up.
finished It is now ready. This time, Mr. Tokuyama gave us luminescent paint, which we mixed with the casting process. I checked to see if this medal actually glows.