3D printer fume extractor kit
thingiverse
This is an extractor system for your 3D printer, utilizing a standard 70x70 by 25mm fan and a common 4 inch dryer vent hose. The primary component of this system is the inline fan holder, which comes with flange plates to interface the hose to various surfaces. I recommend using a PWM (Pulse Width Modulation) controller to adjust the fan speed, allowing you to fine-tune the airflow for optimal results. Printing PLA typically requires full fan power, but for other materials, you may want to reduce the fan speed to maintain a warm chamber environment. The entire kit prints without supports, featuring two halves of the fan housing that clip together seamlessly. To secure the hose in place, zip-ties are required at both ends. Additionally, M3 bolts are necessary for attaching the flanges. A suitable PWM controller I used is available here: Torchstar KBDM-1224V9A-RGB3CN PWM RGB LED Dimmer Controller with 3 Channel Output for Multi-Color and Single Color Strip Lights, DC, 12V-24V, 9 Amp.
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