local class

guerilla guide to CNC machining 
 
 https://lcamtuf.coredump.cx/gcnc/ 
 
 https://thenounproject.com (not free anymore 😒) 
 How to a make Crystal Clear Ice Sphere 
 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/week18/ 
 
 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 
 ferris File-A-Wax 
148x88x37mm 
 https://youtu.be/wMRSPXt48CI?si=QapaiAiej4CBpQQa 
 3D Printed Injection Molds - The Crafsman Steady Craftin 
 Lifecasting: 
 
 
 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. 
 
 Hmm....I was just about to document the blender - mods - workflow when this happened:
 
If the roughing doesn't enter in a hole and the finishing is 5 mm deeper, the tool breaks. 
 
 Let's use Fusion 😒 
 Fusion 
 Extrude a box 49,3333 mm x 44 mm x 18,5 mm
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. 
 
Place your svg (imported with the right scale factor of 3,77957518) 
 
 and extrude it. 
 
 In the Manufacturing workbench we create a setup, with a stock of 0-offset and the origin bottom-left at the upper corner: 
 
 For the roughing I use "Adaptive Clearing" with the following settings: 
 
 
For the finishing I use Parallel:
 
 
Total time is 23:27