lilyclark

You're very welcome ，that helped me a lot.

Hahahaha, the puppy loves it—he really seems to like that big guy! I also recently noticed that the filament at home has become damp; the printed parts are coming out darker in color. I'm currently thinking about whether to buy a filament dryer. Looking forward to your feedback!

Yes, it is highly likely that when the wires were cut, they momentarily touched (created a short circuit), which damaged a small component on the printhead board where the fan connects. Since you've confirmed the fan itself works, the problem is almost certainly with the board that provides power to it.

Great post! I just printed a toy tank for my niece with PLA the other day, and she absolutely loves it. I had never considered adding motorized parts inside, though. She would probably be even happier if it could be remote-controlled. Thanks!