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Week 9 - Molding and Casting

Assignment

  • CNC Wax blocks using Roland or Shopbot
  • Create a mold out of the design
  • Cast out of the mold created

Tools and software used

  • FUSION360 modeling and CAM
  • Roland MDX-40
  • 6mm flat mill-1/8 Flat mill-1/8 Ball mill
  • Smooth-On (PMC, SortaClear and Oommo 25


Designing object in fusion

I use Fusion 360 to design the object for molding using 3 sketches in various heights and LOFT between them

I created doublicate tabs to place the object correctly. and then i split it in half

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I used Fusion Cam to create the toolpaths for the Roland MDX-40

3D Adaptive clearing to remove material. 6mm Flat mill



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3D Horizontal finishing for flat surfaces. 1/8 flat mill

3D horizontal finish

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3D Contour for finishing. 1/8 Ball mill



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Finished Wax with the first Sorta Clear mold. The object was too close the the wall for the 1/8 ball mill. However I did mold test which would not work for casting.

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I changed the placement of the pieces and on tab so the 1/8 mill bits would fit between the problomatic areas

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Closeup of the new mold with good finish

Casting test with the PMC.

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Came out alright however there were a little wet areas which indicate either the material is old or the mixture was not correct.