# local class
[guerilla guide to CNC machining](https://github.com/rwcarlsen/cad-stuff/blob/master/Guerrilla%20guide%20to%20CNC%20machining%2C%20mold%20making%2C%20and%20resin%20casting.pdf)
[](https://unikat-ilmenau.de/wiki/uploads/images/gallery/2025-04/image-1745422628736.png)
[https://lcamtuf.coredump.cx/gcnc/](https://lcamtuf.coredump.cx/gcnc/)
[https://thenounproject.com](https://thenounproject.com) (not free anymore 😒)
[How to a make Crystal Clear Ice Sphere](https://www.youtube.com/watch?v=9cb5kk9s4wY)
[https://www.smooth-on.com/product-line/mold-max/?quicksearch](https://www.smooth-on.com/product-line/mold-max/?quicksearch)
[https://fabacademy.org/2021/labs/kamplintfort/students/mattissen-gerhard/assignments/week15/](https://fabacademy.org/2021/labs/kamplintfort/students/mattissen-gerhard/assignments/week15/)
[https://fabacademy.org/2021/labs/kamplintfort/students/mattissen-gerhard/assignments/week18/](https://fabacademy.org/2021/labs/kamplintfort/students/mattissen-gerhard/assignments/week18/)
[](https://unikat-ilmenau.de/wiki/uploads/images/gallery/2025-04/image-1745782201208.jpg)
[https://fabacademy.org/archives/2015/eu/students/postma.ronald/02_progress/week_09.html](https://fabacademy.org/archives/2015/eu/students/postma.ronald/02_progress/week_09.html)
[https://fabacademy.org/2020/labs/leon/students/adrian-torres/week15.html](https://fabacademy.org/2020/labs/leon/students/adrian-torres/week15.html)
[ferris File-A-Wax](https://goldschmiedebedarf.de/de/product_info.php?products_id=4934)
148x88x37mm
[https://youtu.be/wMRSPXt48CI?si=QapaiAiej4CBpQQa](https://youtu.be/wMRSPXt48CI?si=QapaiAiej4CBpQQa)
[3D Printed Injection Molds - The Crafsman Steady Craftin](https://www.youtube.com/@TheCrafsMan)
## Lifecasting:
[](https://unikat-ilmenau.de/wiki/uploads/images/gallery/2025-04/image-1745586142163.jpg)
[](https://unikat-ilmenau.de/wiki/uploads/images/gallery/2025-04/image-1745590014356.jpg)
## Blender - mods
If you model your part in blender, you should start with a cube 49.3333 m x 44 m x 18.5 m in size.
[](https://unikat-ilmenau.de/wiki/uploads/images/gallery/2025-04/image-1745569635329.png)
Hmm....I was just about to document the blender - mods - workflow when this happened:
[](https://unikat-ilmenau.de/wiki/uploads/images/gallery/2025-04/image-1745766272997.png)
If the roughing doesn't enter in a hole and the finishing is 5 mm deeper, the tool breaks.
[](https://unikat-ilmenau.de/wiki/uploads/images/gallery/2025-04/image-1745782017018.png)
Let's use Fusion 😒
## Fusion
Extrude a box 49,3333 m x 44 m x 18,5
Create a cavity 2mm from the edge, 15,5 mm deep.
If you give the sidewalls a 10° draft angle, you won't be able to hit it with the 1mm mill.
[](https://unikat-ilmenau.de/wiki/uploads/images/gallery/2025-04/image-1745768857986.png)
Place your svg (imported with the right scale factor of 3,77957518)
[](https://unikat-ilmenau.de/wiki/uploads/images/gallery/2025-04/image-1745772671308.png)
and extrude it.
[](https://unikat-ilmenau.de/wiki/uploads/images/gallery/2025-04/image-1745776031525.png)
In the Manufacturing workbench we create a setup, with a stock of 0-offset and the origin bottom-left at the upper corner:
[](https://unikat-ilmenau.de/wiki/uploads/images/gallery/2025-04/image-1745776377181.png)
For the roughing I use "Adaptive Clearing" with the following settings:
[](https://unikat-ilmenau.de/wiki/uploads/images/gallery/2025-04/image-1745776945200.png)
[](https://unikat-ilmenau.de/wiki/uploads/images/gallery/2025-04/image-1745777016286.png)
For the finishing I use Parallel:
[](https://unikat-ilmenau.de/wiki/uploads/images/gallery/2025-04/image-1745779913700.png)
[](https://unikat-ilmenau.de/wiki/uploads/images/gallery/2025-04/image-1745779961453.png)
Total time is 23:27