Test Combustion Chamber for Jet Engine

Proof of concept model to see if we can sustain gas fueled (propane, methane) combustion inside ABS parts.

**Note:** notice the inclination of the inner cylinder holes; airflow is meant to go from bottom side upwards.

The final objective of this project is to attempt and 3d print a functional jet engine.
Inspired by [Thalmano's Jet Engine](https://www.thingiverse.com/thing:241437) (demo model, runs on compressed air) and some working homemade metal designs by Mattis Berntsson:
- [Homemade Jet Engine Plans](https://youtu.be/CmnibE_1Rzw)
- [Homemade Axial Jet Engine - Test Runs](https://youtu.be/trcnd7qs-S8)

Our first idea was to look for high temperature resistant materials and low temperature burning fuels. However, after some research we quickly found that there is a great temperature disparity between plastic resistance and combustion temperatures (surprise, surprise!). Also the availability of materials made us decide to go ahead with ABS and a readily available gas as