DaVinci 1.0 Blower Mount

thingiverse

It appears you're attempting to implement a fan control system for your 3D printer, specifically using a relay module to control the fan. Here's a step-by-step guide based on your instructions: ### Hardware Requirements * **Relay Module**: This will be used to control the fan. * **JST Connectors**: For connecting the fan and the ground wire. * **Fuse Holder**: To securely connect the 12V power line from the board. * **Wires**: For connecting the relay module, fuse holder, and JST connectors. ### Assembly Instructions 1. **Mounting the Relay Module**: * Connect the +12V from the board to the output side (center Lug) of the relay module. * Connect the 12V fan wire to the NO Lug (the left lug). * Leave the NC Lug empty. 2. **Connecting Power**: * Solder a small 1K resistor to the Collector pin (marked as C on the transistor). * Mount the transistor to the PCB and solder the Emitter pin (marked as E) to Ground. * Connect the Base pin (marked as B) of the transistor to the output of the relay module. 3. **Grounding**: * Connect one end of a 5-inch long wire with a 2.0mm JST connector to the Ground terminal on the board. * Insert this wire into the ground hole on the PCB and solder it in place. 4. **Connecting the Fan**: * Connect the other end of the 5-inch long wire (with the 2.0mm JST connector) to one of the pins on the relay module's NO Lug. * Connect this pin to the fan's positive terminal. 5. **Final Connections**: * Solder a small piece of PCB (the one you cut from the parts list) into the tab below the 2.54mm JST connector opening. * Insert the 2.54mm JST connector and solder it to the PCB. ### Software Configuration * The firmware code has been modified to use ORIG\_FAN2\_PIN (85) as the fan pin when REPURPOSE\_FAN\_TO\_COOL\_EXTRUSIONS is enabled. * To control the fan, you'll need to modify your G-code files to include commands that turn on and off the fan. ### Important Notes * The fan will only work if the 12V power line from the board is connected correctly. * Make sure not to connect the fan's positive terminal to the NC Lug on the relay module, as this may cause a short circuit. If you're unsure about any part of the process, consider consulting online resources or seeking help from an experienced DIY electronics enthusiast.