[v 1.0]
The project is currently in the alpha phase. I'm sharing the model for the finger, thumb, and wrist stabilizer, which can be molded to fit the wrist shape by heating it with a hairdryer or heat gun. To adjust the file to your hand, it should be scaled in the appropriate proportions using a 3D slicer program. The straps file should generally not be scaled, as it is used to adjust the tension force of the rubber

[v 2.0]
soon
I am currently working on creating a parametric .step file to easily and conveniently adjust hand dimensions, and the program will accordingly adjust the dimensions of the orthosis, which we will be able to directly export to an .stl file.

The project for stroke survivors enables the rehabilitation of fine motor skills, allowing for the safe elimination of flexor tensions. The primary goal is to lower the cost of the orthosis. The product will be available under an open-source license for self-production using a home 3D printer or can be commissioned for professional 3D printing. Target price range: 5-25$
The orthosis consists of 8 components, elastic rubber, and Velcro. It allows for independent, easy application, adjustment of finger straightening force, and customization to fit individual hand sizes. The wrist stabilizing element is shaped to fit the hand by heating the print

The orthosis is a student project that I created in the ergonomic design studio at the Faculty of Industrial Forms, Krakow Academy of Fine Arts. It was developed under the supervision of Professor Czesława Frejlich and mgr. Karol Cyrulik

straps

I used in the project can be purchased on Amazon under the name: "Flat Elastic Band for Sewing". The tension is irrelevant because you can adjust it appropriately when mounting the project. For the fingers, I used elastic with a width of 1/4 inch (6mm), the band that wraps around the hand is 0.75 inch (19 mm) wide, and over the wrist, a 1 inch (25 mm) wide Velcro was used.

The flat part that you print should be placed in hot water or gently heated with a heat gun to become slightly elastic, then apply it to the straightened wrist (as in the photos) and leave it until it stiffens and retains the shape of our hand. It's best to wrap your hand with a single layer of elastic bandage; this way, you'll avoid potential burns if you overheat the 3D print. I did this with my bare hand, but I only heated the print with a heat gun for a few seconds. It wasn't very hot, but I had to move it to my hand quickly because it cooled down fast.