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7530 24V DC Blower Cooling Fan Raspberry Pi 4 Model B (4GB Ram) Obstacle Avoidance Robot: Combine with Obstacle Avoidance Robot: Combine with an ultrasonic sensor (HC SR04) and Arduino to create an autonomous bot that detects and navigates around obstacles in real time Universal 5x20mm Compatibility: Accepts all standard 5x20mm glass tube and ceramic fuses the most widely used fuse format worldwide 3D Printer Part Cooling: Mount on your print head carriage for superior layer cooling on PLA Essential upgrade for Ender 3 V2
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