Parkside 12V to Makita 10.8 / 12 V converter adapter

Required Parts and Tools

Pliers

Soldering iron

Wires
2 × 27 mm spring steel strips
1 × 20 mm spring steel strip
1 × 10–15 kΩ resistor
Super glue or Acetone
Ballpoint pen spring
Time and patience
Connector: https://de.aliexpress.com/item/1005008945056004.html?gatewayAdapt=glo2deu

1. Print the parts
   3D-print all required housing components according to your model or template.

2. Bend and shape the spring steel
   Use pliers to bend and adjust the spring steel strips so they fit properly into the printed housing.

3. Solder the resistor
   Solder the 10–15 kΩ resistor to the appropriate wires or contact points as specified in your design.

4. Insert components into the printed body
   Place the bent spring steel strips, the wires, and the soldered resistor into the printed housing.
   Ensure everything aligns correctly and is seated firmly.

5. Prepare and install the ballpoint pen spring

Cut the ballpoint pen spring in the middle so that you obtain two shorter spring sections.
Insert one of the spring pieces into the push button mechanism (the actuator).

1. Glue the parts together — except the lid!
   Assemble the housing pieces and glue them together carefully, but do NOT glue the lid yet.
   Allow the glue to set properly.

2. Route the wires
   Feed the wires through the designated openings in the printed body.

3. Crimp and insert the connector
   Crimp the connector onto the wire ends.
   Insert the connector into its slot or attachment point in the housing.

4. Test the assembly
   Before sealing the device, test the mechanism and the electrical function to ensure everything works correctly.

5. Final sealing
   If everything works as expected, glue the lid onto the housing to complete the assembly.

I wish you lots of joy with it.