Servo Robot Gripper

thingiverse

This gripper model is surprisingly simple. It gets its power from a reliable 9g servo motor, which enables it to hold objects roughly the size of a soda can. The design offers two possibilities: if you need to grasp lighter items, simply print out the flat arm model and you're good to go. However, for more substantial objects, you'll want to print both the arm and underarm files. Keep in mind that this second option requires some screws to connect the two pieces together. To assemble the gripper, simply print out the necessary parts and remember to mirror any additional arms in your slicer software. Then, follow the assembly steps as depicted in the pictures I provided. I used an MG90S servo for this project, but you can also use an SG90 if you prefer. To keep everything in place, I employed some rigid wires - think paper clips - to hold the arms and the servo's arm together. The design includes M3 bolts and hex nuts for securing the arms, which requires a bit of fine-tuning to get just the right gap between the arms and base plate. Once you've adjusted the gap, simply secure the bolt against the nut with a small drop of nail polish.