This is a design for the MY4777 3D printing class at Michigan Tech. This is for the Adaptive Aid project. I chose to design and print an aid for helping people with arthritis use scissors. I printed the base at low infill to reduce material costs, the rest of the parts need to be strong, and require a higher infill. I also printed at the highest layer height I could for my printer to reduce print times. It requires the following parts: 

4X M3x10mm bolt 

4X M3 Heat Set Insert

2X Zipties

1X Pair of Scissors 

4X Printed Parts

Total Cost: ~$9.00 USD

Cost of Actual Device: $31.95 USD Link: https://www.arthritissupplies.com/mounted-table-top-scissors.html

To assemble, first ziptie scissors to base using two zipties, one on either side. Then place the scissor clamp onto the base using the m3 heat set inserts into the printed part, and m3x10mm screws. Finally assemble the top and bottom of the push handle using 2 more m3 heat inserts and m3x10mm screws. 

Future improvements:

Use spring loaded scissors to improve usability, or figure out how to use springs or rubber bands to work with any scissors. 

Use magnets, double sided tape, or weights to help hold the entire assembly down to the table.