January 6, 2023
Description
I originally designed this for a relative who only has the use of one hand. This may seem over-engineered, but it works very well. The finger plates have just enough pressure to hold the cards in place, but a card can be pulled out with one hand, even when full of cards.
Print main bigger parts (2x outer edge) horizontally. I added some solid infilll to base of the center for weight.
I print the finger plates (2x) with .07 layers starting at 0.5 height. The curved lead-in section of the fingers where the cards slide in (the part you can see when assembled) needs to be sanded smooth. This is important or else the cards will catch when inserted. Doesn't need to be polished, I don't spend more than 5-10 minutes on them with some 320 grit paper. Because the fingers are screwed on you could use a better material, ABS or PC might hold up better long term (less creep)
The center is threaded for #6 sheet metal screws ¾" or shorter.
The edges need to be glued on, i use PLA with superglue, PETG is little more finicky to glue.
License:
Creative Commons — Attribution