The opening for the filament sensor cable is considerably oversized. If you want to keep the heat inside the chamber, you should seal it.
Take a look at the photo gallery. The pictures should be self-explanatory.
Use TPU for printing. It should be easily withstand higher chamber temperatures.
If you like my design, feel free to like, comment or add a make :)
Happy printing!
The author marked this model as their own original creation.