Battery Powered Mini Dremel

Maybe it's not beautifull but it works very well. I designed it to polish little elements that's why motor is not powerful at least mine isn't, but it also can drill small holes in soft materials (plastic, thin wood etc.)

To make this work you need:

• Lithium-ion cell (I use 3 cells from old disposable vapes)
• DC motor type 270 You can buy it here - https://aliexpress.com/item/33054260796.html
• TC4056 module with USB C connector and output. You can buy it here - https://aliexpress.com/item/1005005185899691.html
• Keyless drill chuck for 2mm shaft like this one - https://aliexpress.com/item/1005004091757033.html
• Switch 15x10mm
• 2 M2.5 screw
• Some cables

Circiut is really simple you can see it below:

If you have vibration problems and the top cover makes noise, I recommend gluing it down.