Mold Positive Design & Prep for CAM

For my final mold positive design, I decided to go with a different object from my initial idea. It occurred to me that my initial idea might be more difficult to de-mold at the slipcasting process, so I went with a plate design instead. 

I did still stick to doing a one-part mold because I think it'll be easier for me to troubleshoot my mold logic since I'm still learning how to do it properly.

 

I reused the polygon I created for the pen holder, but only using it as an accent this time instead of having it as the entire design. I decided to do this to mitigate the amount of complex shapes on my final object, especially during the machining process on the CNC. 

Again, once I was satisfied with how it looked after lofting, I attached it to a base to create the mold positive, 

 

and did a boolean difference with the model of my stock to create the mold negative. This would basically be what the plaster mold would look like after pouring plaster over the CNC milled mold positive.

I'm a little worried about how the curved edges would turn out during the slipcasting, but hopefully it'll turn out. If it doesn't, I probably will need to adjust the angle it sits at so it releases easily. 

 Renders: