Black_Ram_Industries

In regards to fine grip control, it is very difficult to achieve which is the reason why those devices are very expensive and use electronics and motors. I think your teachers have very unrealistic expectations on what can be achieved with a simple 3D printed prosthetic. I have included the base gripper files, if your course or study involves using CAD you can then you can modify them to design your own gripper for your project.

Hi Manika,Unfortunately this device was not intended to be able to make such fine control movements as would be required to hold a pen and write. That would require something almost completely different. It was designed or holding large items with minimal force using the wrist.Your best option for a design would be to contact an organisation such as the following:http://enablingthefuture.org/http://www.openbionics.org/