Epoxy resin and water-soluble PVA experiment. I built a working transparent engine. I've 3D-printed the bore and ports of the 2-stroke cylinder with PVA-filament. I then built a mold and poured epoxy resin over the inner structure. Once the epoxy hardened, the PVA is dissolved in cold water. Some machining is required to get the desired dimensions. Next up is polishing to get full transparency. The translucent epoxy now reveals the piston and transfer ports. I crafted an engine stand. Installed the cylinder, piston and head. Added fuel to the system and jetted the carburetor. Then connected a battery and hit the start button! Enjoy the footage and slow-motion shots of the motor running. Like & Subscribe if you did!
This experiment was a great learning experience. It's my first time using epoxy resin and unfortunately I couldn't remove all the bubbles in the resin. If you know a way to eliminate this issue without the use of a vacuum pump, let me know in the comments. I really appreciate it.
I've read about using epoxy resin and PVA-filament together to make parts, but I've never actually see anyone do it before. I finally did it and I can confirm it works, although it may not be the most efficient way of producing parts. It's expensive and really time consuming. Nonetheless, it is a fun engineering experiment.
The footage is captured on a phone and a GoPro. I'm really surprised how well the footage turned out knowing what is used to capture it. I hope I can get my hands on a professional slow-motion camera in the future to get better close-up footage and make a detailed video about how a two-stroke engine works. Let me know what you think and if there is interest in such video ideas!
Thank you very much for watching :)
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