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Showing posts from February, 2026

OBDF 301: Mold Positive Prep for CAM

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  The photo above is my foam positive. I kept in mind of not adding overlapping areas or undercuts as the CNC machine would not be able to do so. draft angle analysis really helped me make sure I did not accidently add things to the model the machine was not able to do. I did not have to make any changes to the model as I had this in mind from the beginning. I would like to see if it is possible to change pieces mid cut to get a smaller detail or make another CAM file to do so. This photo shows me using draft angle analysis to check the draft and release points this is ideally how I want my piece to come out from this process

OBDF 301: Mold Positive Design

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  I chose to do a one-piece mold making a bowl. I used draft angle analysis to check the draft and the release and made sure it would be able to pop out. The middle of the bowl has a tiny spike which may be too small for the drill piece but I want to see how it turns out.

OBDF 301: Cast thinking ideas

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 here I was just messing around with shapes making molds  I used draft angles analysis to check if the drill bit could get the angles I wanted. All the red are angles that would have issues getting cut from the top down so this model would not work for this.