Old power screwdriver: teardown and upgrade

It's amazing the things I find when I'm trying to clean up my shop. I don't even remember why I have 2 non-working old Black&Decker power screwdrivers (and an incompatible charger...) So why not take them apart, see what's inside. And as a bonus, try to revive one with some other parts I have lying around. For more about the gears: https://en.wikipedia.org/wiki/Epicyclic_gearing ----- My tip jar: https://www.patreon.com/pileofstuff My other tip jar (channel membership) : https://www.youtube.com/channel/UCRiFz3gNKE3VysarZ7nmqIA/join Buy me a coffee (or a beer): https://ko-fi.com/pileofstuff If you are OK with me getting a commission on your purchases, feel free to use my affiliate links: Ebay: https://ebay.to/33IF7PA Banggood: http://pileofstuff.ca/r/9ajsf Some other links to products may be affiliate links https://odysee.com/@pileofstuff #ElectronicsCreators ----- This isn't the only way to do it. It's probably not the best way to do it. But it's how I did it.