another P2S riser

I know you probably don’t need this, since you can likely find a better one, but I like to build my own parts because I enjoy spending time thinking about how to design them, imagining the mechanics, and learning at the same time. I printed it in PLA with a TPU gasket. This could become a problem if your chamber temperature goes above 50°C. PLA starts to soften around 55–60°C (glass transition temperature), and TPU also begins to lose stiffness as the temperature increases (typically softening above 60°C, depending on the type). So prolonged high chamber temperatures could cause deformation. I added the TPU because I didn’t like having the glass directly in contact with the PLA. I also didn’t add any ventilation openings since I have the P2S exhaust (and this is an addition to the P2S exhaust) installed, which regulates the chamber temperature.