Week assignment is..
○ design a 3D mold, machine it, and cast parts from it
I decide to make a button because it is a simple shape. I have never made a mold with milling machine before. This is good practice for me.
First, I design 3d mold. The software I used is Rhinoceros. because Rhinoceros is good for editing stl.file.
Download : button.stl
1. Import “mesh file( .stl )”
2. from right side menu, change the units inchi to mili. type “25.4”
3. click, “calculate height map”
4. from top menu, select output format “G-codes.nc”
5. from top menu, select process “foam rough or finish cut(⅛)”
6. from right side menu, change “output” parameters
7. from right side menu, change “process” parameters
Download : b_rough.nc・b_finish.nc
I used two endmills
left is square endmill 3mm , right is ball endmill R0.5mm
Rough cutting took only 15 minutes, but finish cutting took 2 hours.
Finish cutting takes many times..
I used a clear silicone 造形村 透明シリコン 1kg(clear silicone)and 食用シリコン1kg(silicone for food)
I tried to make a gummy candy.
First, I wared up Gummy candies in the microwave and picked up from the machine. Then I pour liquid candies into the mold quickly because candies will become hard very soon.
White : Muscat taste (only candies.)
Red : Grape taste ( I mixed with a little warter for making candies more soften. )
Next I put them into the fridge for 8 hours.
After that, I get it!
Grape gummy is more stickly than white one.
White gummy has simillar texture close to Gummy candies. It was yammy!