Enclosure Heater Fan Mount (Compatible with @MikeS_75840’s Enclosure Heater System)
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A custom mount designed to install an EU available PTC heater fan into the Prusa enclosure
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Model information
- Source
- Printables
- Category
- Prusa Parts & Upgrades
- License
- Creative Commons — Attribution — Noncommercial
When printing materials such as polycarbonate, it’s strongly recommended to run a heated enclosure to minimize warping and improve layer adhesion.
I wanted to build the excellent “Prusa Enclosure Heater and Temperature Controller” setup by @MikeS_75840 (https://www.printables.com/model/911503-prusa-enclosure-heater-and-temperature-controller), but I wasn’t able to source the same heater-fan unit used in his model, as it was only available in the States.
After some searching, I found a suitable PTC heater fan on EU Amazon (https://www.amazon.de/Heizung-PTC-Heizung-Elektrischer-Keramik-Thermostat-PTC-Lufterhitzer/dp/B09XV41P7L/).
Since this unit has a completely different form factor, I designed a custom mounting bracket so it can be installed inside the Prusa enclosure, similarly to the original setup.
Design Notes
- The mount uses the same four M3 nuts as the original model by @MikeS_75840 for compatibility.
- Additional screw holes are included for securing the heater-fan directly.
Wiring Notes
The heater-fan comes with four wires:
- 1 thick red wire + 1 thin black wire → connect together to L1 (Brown)
- 1 thick black wire + 1 thin black wire → connect together to N (Blue)
If the airflow exits on the propeller side (wrong direction), simply swap the two thin black wires.
This reverses the fan direction so that the heated air flows out of the element correctly.