Commit b5523201 authored by anithghalley's avatar anithghalley
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update

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......@@ -4,6 +4,16 @@ This week was all about molding and casting. I learned alot with the process. In
![](../images/molding_and_casting/m_&_c_week.png)
## Group Assignment.
Group assignment can be found [here](https://fabacademy.org/2022/labs/bhutan/students/sangay-penjor/assign/week_9_group.html)
## SOftware used.
- Modela Player.
- Vpanel.
- Fusion360.
## 3D Design.
For the design, I used the fusion 360 to design my model. The image below is shows the 3D design model.
......@@ -12,14 +22,38 @@ First I took the measurement of the wax block so that there is enought space for
The screenshot below shows the parameters defined for the design.
**image of parameter**
![](../images/molding_and_casting/parameter.png)
Taking this dimensions, I made a rectangle. The reason I took the initial dimension as same as the dimension of the wax so that my final model made based on the dimension of the wax.
![](../images/molding_and_casting/wax_dimension.png)
Fter extruding the rectangle. Two different offset are made to considered.
![](../images/molding_and_casting/offsets.png)
- Offset 1: Outer edge for the mold wall.
- Offset 2: Inner edge for the mold wall.
And after extruding and smoothing the sharp edges, my expected output should would be like this.
![](../images/molding_and_casting/expected_out.png)
Since I planned to present and dzongkha on my design and the word is
- **༼འགྱར་མེད༽** (meaning ༼Jurmi༽). Its a name. It is important to maintain the font style to as Jomolhari as shown below.
![](../images/molding_and_casting/font_style.png)
Hence after extruding the alphabets. My design is ready fpor molding and casting.
![](../images/molding_and_casting/design.png)
The model is an extrude of dzongkha work. The word is Jurmey and its a gift to one of my friend who has been helping me in school during the fabacademy course.
**video of the design**
<video width="600" controls>
<source src="../../images/molding_and_casting/videos/design.mp4" type="video/mp4">
</video>
## Necessary setup and learning.
......@@ -69,8 +103,10 @@ Finally roughing is done after 2 and half hours.
![](../images/molding_and_casting/finishing_work.png)
The roughing work will create a contour lines, so that the finishing file will smoothen the surfaces.
### Creating the finishing file.
### C**reating the finishing file.**
Now the next step is the creat g-code for the finishing file. Not much of a difference, we have to change the tool to R1.5825 Ball.
......@@ -84,6 +120,10 @@ Now make sure that we have saved the g-code file to a proper location.
![](../images/molding_and_casting/output_file.png)
Also from the modela player we can open the virtual model ad view the 3d model from the virtual modela as shown below.
![](../images/molding_and_casting/virtual_modela.png)
## SRM-20
Since we had experiencing working with SRM-20 machine so it was not a big deal wo work with this machine.
......@@ -102,7 +142,13 @@ For creat a silicon negative the material as shown below is mixed to with equal
![](../images/molding_and_casting/silicon_material.png)
The video below shows a glips of work during this process.
The amount or the weight of the two material must be of equal quantity
The video below shows a glips of work during this process.
<video width="600" controls>
<source src="../../images/molding_and_casting/videos/mold_fill.mp4" type="video/mp4">
</video>
## Casting.
......@@ -110,7 +156,7 @@ So the final process is to add the casting material to the negative mold to get
![](../images/molding_and_casting/casting.png)
The ration between water and Hydrostone is for 100 gram of hydrostone it will be mixed with 30 gram of water.
The ratio between water and Hydrostone is for 100 gram of hydrostone it will be mixed with 30 gram of water.
## Final output.
......
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