1/14 CAT 390D LME

[Jw.]

My first negative silicone mold attempt that I'll use to make a positive silicone. Them I'll use it to make my negative plaster mold. In the final third picture, the mold came out quite well except for a few bubbles around the bolts. This was a result from most likely not vacuum degassing the silicone before I poured. I would have except I have yet to make a vacuum chamber and get myself a pump. Those are on the list next.

[Jw.]

Second attempt was a failure again but I'm getting closer. Air bubbles all over and it cracked.



Third plaster mold attempt. Once again there were a few tiny bubbles in the silicone that can be seen as imperfections on the edge of the track pad.



Third time worked. Almost. Although it did not crack on me I still have a few air bubbles. Again I'm sure I can easily take care of those once I get my vacuum chamber built.