This is my build of the "DIY Battery Powered Solder Fume Extractor" by KaeptnBalu. My build changed the on/off switch from a toggle switch to a push-button switch. Also I designed a bracket to provide stronger support for the TP4056 charger module when inserting the USB cable.
ComponentsAll the components came from Ali-Express.
- Fan: 12V Ball Bearing 3000rpm 120mm*120mm*25mm Fan DC Brushless Cooling Fan - AU$15.59
- Grill: 120x120mm Metal Grill - AU$2.43
- XL6009 DC-DC Booster module Power supply module - AU$1.96.
- 1S Single 3.7V Lithium Battery Capacity Indicator Module 4.2V Blue Display - AU$2.76
- Type-c Micro USB 5V 1A 18650 TP4056 Lithium Battery Charger Module Charging Board With Protection Dual Functions 1A - AU$4.38 for 5 off
- Square 8x8x13mm 6 Pin DPDT Mini Push Button Self-locking Switch G65 Multimeter Switch - AU$1.99 for 10 off
- Switch Cap - AU$1.51 for 10 off
- Universal Black Activated Carbon Foam 10x130x130mm - AU$6.55 for 5 off
- 18650 Battery Holder Box 1 Slot 3.7V Battery Storage Case - AU$1.96 for 3 off
- Grade 10.9 Hex Socket Round Button Head M4 40mm Screws ISO7380 - AU4.49 for 20 off
Most of the build followed the instructions provided by KaeptnBalu (See the "DIY Battery Powered Solder Fume Extractor").
The case has been redesigned to use a push-button switch rather than a toggle switch. The modified 3D printer files are attached. "Fan_TP4056_Bar.stl" is a bracket designed to be super glued into the case to support the TP4056 module.
Start by hot glueing the battery meter module into the case. The display edges of the LED display on the module are white. As this build uses black PLA for the case, the display edges were painted with black matt paint.
The power switch should be superglued into its holder. Be very careful that super glue doesn't run down inside the switch. Hot glue is not strong enough to hold the switch in place as it will eventually break.
I used a male and female Dupont connectors to connect the two halves of the case together. This is optional.
Optionally solder a 1N4007 diode on the bottom side of the XL6009 Step-Up power supply module. Cathode to OUT+, Anode to OUT-. This protects the module from any reverse voltage spikes generated by the inductance of the fan.
Glue in the XL6009 Step-Up power supply module and connect it to the battery. Adjust the output to provide 12V for the fan.
Add the TP4056 charger module along with the 3D printed bracket. The bracket is super glued to the case. There are slots in the bracket that support the back of the charging module. Once the glue dries, you can hot glue the board to the bracket.
Close up the case using four 40mm M4 screws.
ConclusionThanks KaeptnBalu for a interesting project. Being portable makes it very useful as there are no leads to get in the way on a cluttered workbench.
Comments