Drive Linkage Simplified

Not sure how to print the black driveshaft so that parts snap together (using PrusaSlicer). All my square holes shrunk quite a bit leading to much filing of the square pegs. The driveshaft likely could be much simpler and easier to print. I tried to fuse adjoining parts that didn't need to move or rotate to make the driveshaft more reliable. Combines the driveshaft_5 and driveshaft_6 parts and the driveshaft_2 and _3 for easy printing. It combines 10 separate parts into 4. No supports required for 5,6, but you do need support for 2,3. I used PrusaSlicer's painted on support. You will need some filing after removing supports, but I found these much easier to create and are stronger, since multiple parts are combined into one.