Aqua Lighter 2 - Simplified Build

Aqua Lighter 2 takes the original concept a step further. It still looks like a regular lighter, but instead of a flame, it sprays water for a simple and unexpected prank.

This updated version is easier to print and more accessible to build. All printed parts are now designed for PLA, with no TPU plug required. At the same time, the internal layout has been refined for a larger water capacity and a more practical refill process.

Just like the original version, this model still requires a small spray atomizer. I recommend using one from a 30ml spray bottle, as that size tends to fit best. Keep in mind that atomizers are not well standardized, so depending on the source, small adjustments may still be needed.

Materials

• Body, button, nozzle guard: PLA
• Spray atomizer: salvaged from a small spray bottle

Atomizer Dimensions

30ml spray bottle reference (dimensions may vary):

Assembly Guide

Step-by-step instructions for preparing the atomizer and assembling the model.

Disassemble the Spray Bottle

Remove the nozzle cap and take out the spray head (button + nozzle).
Then remove the sealing insert from inside the cap.

This will expose the atomizer assembly for further extraction.

Extract the Atomizer

Carefully cut the plastic cap using side cutters to release the atomizer.

After removal, check the length of both tubes (top and bottom).
Trim them if necessary to match the expected proportions.

Prepare Printed Parts

Prepare all printed parts before assembly:

• Remove brim from the body
• Remove supports from the nozzle guard
• Remove support from the button

The supports should detach easily and only require minor cleanup.

Final Assembly

Insert the atomizer into the body slot.

Press the button onto the top tube - you may need to push it several times until it seats properly.
Once installed, the button should not rotate.

Slide the nozzle guard into place. It fits more tightly in this version, so it may help to press the button slightly while installing it, as the nozzle can gently push the cover upward.

Done.

If something feels loose or too tight, double-check atomizer dimensions - they may vary between models.