Hello There! I haver added to the desert wadi and decided to add a few pictures to show how I carved and shaped the styrofoam. The second part is here.
Here I have fixed the plaster cast rock face in place, against the styrofoam. I have deliberately not matched the height of the rock face to the styrofoam. Once the adhesive has set I trim any excess with a craft knife. You do not need to cut back to any depth, just enough to not have any over hang above the casting.
Once the cutting back s done then take the surform planer and refine the cutting back you just did. Avoid popping the casting off the tile while doing this.
I always had reservations about using Woodland Scenics cast rock faces as I was unsure how to join them all up to make a long run of cliff face and not have it look false. Here I am working on a meandering source of the wadi which terminates in a very narrow ravine. Instead of using a number of flat sections which would need to go around a corner I had a deep casting which had a round face to it. I scored a line to show where the back of the casting would fit but still provide a curved face to the ravine.
I offered the casting up to its proposed position to make sure it fitted well.
I then used a general purpose saw to cut the curve off.
I used masking tape to hold the castings in place. After allowing the adhesive to set over night I ended up with this.
I will post some photos of a completed and painted wadi section in the next blog post.
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