i've been researching robotic arms for a personal project. I'm a computer engineering student, made some projects with arduino but my knowledge about robotics is currently limited.
So i was wondering, what was the limitations of the robot arms in the market? I'm planning to build a 3 joint robotic arm, it will be used for light weight job (like dotting paper with pen). Would making this fast(Sorry, i don't really know how i could explain that further) and precise(0.01-0.001 mm) possible?