How to make a simple chainsaw

Preparation materials: a small motor, 9V battery, power switch button, 9V battery adapter, insulating tape, small wooden board, refill pen tube (ballpoint pen) and iron bottle cap.

Connect the battery, wire and switch in series first.

Then knock the iron bottle cap flat with a hammer and saw it out with scissors like a chainsaw.

Then, use hot melt adhesive to fix the cut bottle cap on the small motor for reloading. Remember to fix it firmly, otherwise it will be a dangerous drama for the chainsaw to fly out during use.

I didn't expect to make a small chainsaw in a short time. Don't doubt its function. A small chainsaw can easily cut off disposable wooden chopsticks and plastic straws, benefiting many people who like handicrafts.