SummaryThis prosthesis has been designed to help those people with missing fingers. It has been modelled keeping in mind the following principles: -Keep the number of printed parts as low as possible -Keep the assembly process as simple as possible -Use the least possible amount of non-printable parts. The bolts and nuts in the joints have been replaced by bits of 1.75mm filament. -Leave openings in the model to allow the hand to transpire -Allow a higher degree of freedom in the wrist The fingers flex when they are pulled by strings, such as fishing line, and extend automatically with the help of elastic cord. A fabric strap with velcro is needed to secure the prosthesis to the arm. The model is open-source, and thus can be studied and modified to improve its performance. https://youtu.be/0TF3ih02L9A Author: http://www.soniaverdu.es/Print SettingsRafts: Doesn't MatterSupports: Doesn't MatterResolution: 0.2 mmInfill: 10%Notes: For greater resistance: Shell thinkness(mm) 1.2Post-PrintingYou can use tape boxer, it is cotton. Then you can add velcro where you need it.