Scissor Joint

Originally there were two half-spherical plastic parts that make two scissors blades tied to each other, but they were missing somehow. As a result, two blades are very loose and dangerous when using the scissor to cut something. As a result. I redesigned two plastic parts at the joint to fix this problem. My redesign part is consisted of two cylindrical parts. The smaller cylinder can fit in the hole of the scissor perfectly and its length is equal to half of the depth of the hole. After placing two new printed parts, the scissor would not be too loose to use, but the frictions created by the new printed parts are not as great as the original piece (at least it looks nicer). I originally design one piece with a hole in its smaller cylinder and another piece with an even smaller cylinder to fit in the hole of the other piece, but the size of the hole is too small for the printer to print. If my original design can be printed with enough precision, it would be a better design for the jo