100W/120W/200W PTC electric Heater reduction/transition

reduction/pass through the enclosure wall 

for example for this heater: https://a.aliexpress.com/_mPlGPcS

I didn't want the heater touching the wooden wall.  So I created a reduction and at the same time a passage through the wooden wall. It is for my heated box for an SLA printer, but it can be used in any other way.

It must be printed from a material that can withstand higher temperatures.  PLA is probably not a good choice.

For simplicity, I printed it divided into 2 parts and then glued it together