Concrete Object Project (#2 - TRIAL 1)

Now that I have my CAD program set and a solid idea, I started creating the mould to pour my concrete in.

I used the same material from our last project, plaster-board, to create the outside of my mold. Since I was making this triangle object, I created a triangular prism without the top as my external mold. Next, I created small pieces for each of the side triangles (rectangles attached to triangles that would fold over) and placed them in each corner of the triangular prism. Since this plaster board had ridges, I needed a way to cover up the holes that resulted from folding the board over, so Mr. Williams suggested I use small strips of balsa wood. I just used the glue gun to glue these strips into place, and I was done with my mold. This is what it looked like before pouring concrete into it:








After the concrete dried, I cut open the mold to reveal my object. I haven't taken any pictures of it yet, but it didn't look very good. The inner corners were very uneven because the balsa wood sticks had moved before the concrete dried. Also, I made a huge mistake while creating this mold. I made this mold exactly how I wanted my final object to turn out, therefore my concrete came out inverted. I actually had to invert the structure to then make the mold, but I didn't think of this before. That was a huge setback. I was also unhappy with how it turned out, because I wanted it to be perfect (or as close as I could get)like my previous project.

Both these reasons - the uneven edges and corners, as well as the mistake with not inverting my mold - were why I decided to make my object again. This was just trial 1, and my next blog post will be of trial 2.

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