AAA to AA Adapter cheap and easy

thingiverse

I've purchased a large quantity of incorrect batteries recently. Examining adapters on Thingiverse led me to conclude that they are overly complex. Consequently, I designed an adapter of my own. Printing one unit takes approximately 25 minutes. If I print four adapters simultaneously, the entire process takes around one hour. My design has only one non-printed component - a small piece of aluminum foil. In my opinion, the contact hub is more effectively positioned on the battery's negative terminal.