Alright, so I'm gonna walk you through this teeth cleaning machine thing I built. It was a bit of a journey, not gonna lie, but pretty cool in the end.

First things first, I started with the idea. I was tired of flossing, and those water flossers are kinda messy. I thought, "Why not automate the whole thing?" So I googled around for "automatic teeth cleaner" and stuff like that. Saw some concepts, some prototypes, but nothing I could just buy. That's when I thought, "Screw it, I'll build one."

Next up, I brainstormed the basic design. I wanted something small, portable, and easy to use. I sketched out a few ideas on a napkin (classic, right?). The main parts I figured I needed were:

• A motor to power the cleaning action
• Some kind of cleaning head that could actually get between teeth
• A power source
• A housing to hold everything together

So, then the hunt for parts began. I went to my local electronics store and grabbed a small DC motor. Nothing fancy, just something that spun. I also picked up some batteries and a switch. The cleaning head was trickier. I initially tried using some small brushes I found online, but they were too stiff. Eventually, I settled on using those little interdental brushes, the ones that look like tiny Christmas trees. I bought a bunch of them.

Next up was the building. I started with the housing. I used some scrap plastic I had lying around and cut it into the shape I wanted. It was rough, but functional. Then, I mounted the motor inside the housing and connected it to the power source and switch. I glued one of the interdental brushes to the motor shaft. This was the first, super basic prototype. Plugged it in, flipped the switch, and… it spun! Okay, progress.

Now for the testing. This is where things got interesting. The first few tests were... messy. The brush spun too fast and flung toothpaste everywhere. Also, it tickled like crazy. So I had to adjust the motor speed. I added a resistor to the circuit to slow it down. That helped a lot.

I also realized the cleaning head needed to be more precise. I experimented with different angles and brush shapes. Eventually, I designed a small, angled head that could get between my teeth without hitting my gums too hard. I 3D printed it at a friend's place – that was a game changer.

The final step was refining the design. I added a timer so it would automatically shut off after a certain amount of time. I also improved the housing to make it more comfortable to hold. I even added a little container for toothpaste.

So, yeah, that's pretty much it. It's not perfect, and it definitely looks like a DIY project, but it actually works! It gets my teeth cleaner than just brushing alone, and it saves me time. I still floss, but not as often. It was a fun project and I learned a lot about electronics, design, and teeth cleaning along the way. Might even try building a better version someday.