simple arm

thingiverse

Here's what you need: Parts for a basic robot arm. In the photos, I utilized https://www.thingiverse.com/thing:3436276 as the claw. A hole is drilled into the bottom of the base to hold pennies in place, weighing down the arm so it doesn't tip while lifting objects up. I simply covered the hole with a piece of tape to keep the coins from falling out. Not all parts in this thing are required to build the arm shown in the photos. I just had some extra experimental parts that I created for other purposes.