Hi, Just a little presentation before the question. Last year I start doing robots for fun as a hobbie. I dont have schollar skills in robotics, eletronics, mechanics, or 3d design. Just learning adhoc from samples. My first project was a 2WD differential robot that do slam. It toke an year to do it, and I needed learn ROS programing and concepts for the purpose it. Then I decided to do an robotic arm, and Im thinking of use ROS again to control the arm. After some time exploring I found your robotic arm in thing verse (WE-R2.4) and start to build one of the actuators.
I have some questions about it. May be you be kind to help me. :).
First can we use metric screws and bolts? I read 4-40 but it not easy to find then were i lives. What are the recomended metric bolts?
how the top plate with the 4 holes is fixed to mantain the position?
Regarding region A on picture. What is the purpose of the hole?
Regarding region B on picture. I try to put some 6mm steel balls (i dont have plastic yet) and it breaks the border? it seams that 6mm is to big. But the main problem is how to put the balls? does the hole in region A is related ?