design and fabricate a 3D mold, and produce a fiber composite part in it
8 - 8
You can download the files HERE
For this assignment I used my previous mold, made for the moulding and casting assignment, I didn't make a new mold because I wanted to explore the possibilities of reproducing the same geometry using different techniques the mold was modeled in Rhino there I made an "organic" surface which I later mechanized using a CNC router, I used the software Aspire to program and get the G code. Despite resins casting and fiberglass processes are different the wood mold was very useful in both cases.
For the composite process I followed the next steps:
-First I coated my wood mold with a release agent in this case I used a special wax.
- I poured the gealcoat (already catalyzed) all over the surface making sure not to have empty spaces; is very helpful to use a brush to help the gelcoat to distribute homogeneously.
-Once the gelcoat was solid I started placing the fiberglass and the resin.
-After the resin was perfectly catalyzed and hardened, I carefully removed the fiberglass piece from the mold, thanks to the correct application of the release agent was very easy to take it off.
- The result is a copy of my organic geometry, which is very light, with a remarkably resistance and an exact copy of the desired surface even the little imperfections were copied.