DIY Multi-Functional T12 Soldering Iron Adapter

If you're interested in DIY multi-functional adapters, check out this article.

How can you DIY a versatile T12 portable soldering iron? How about trying assembling a complete adapter using ready-made components? It features an adjustable step-down function, USB charging, and is compatible with the T12 soldering iron. You can power it with a Makita battery or a DC power supply.

Here are the materials you'll need: Makita battery, 3D-printed Makita battery adapter kit, step-down module, voltage display module, 12/24V to 5V fast charging module, T12 616 mini module.

First, create a design and print the parts. If the materials become damp and printing doesn't go well, you can apply a covering once the assembly is completed.

Actual image

Install all the modules and carefully organize the wires.

The switch on the left controls the step-down and USB fast-charging modules. The output module is located at the center back, and the voltage display module shows the output voltage.

The USB module supports various fast-charging options.

The switch on the right controls the T12 functionality.

When not using the battery, you can power it via the DC interface at the back.

Finally, install the cover plate.

Here's the overall setup:

Complete