Previously I left off on the abysmal performance of the stock drivetrain, but let’s talk about the modeling aspect of this project before going back. Last time I suggested that plastic modeling was about fitting parts and sticking parts, and J elaborated that it’s about compensating for deficiencies in the manufacturing process.
Of course, there are some deficiencies that you can’t really fix, such as the very clearly misaligned molds that made the above part. The offset is less than a millimeter, but when the part is only a couple millimeters in diameter, it’s pretty significant.