MN91k/MN90 Rear roll cage and scale wheels

thingiverse

I've printed a rear roll cage for the MN91k and some scale-looking wheels, featuring an impressive structure that's been divided into two parts to ensure optimal aesthetics. Initially, I attempted to print it as one piece but was disappointed with the results, so I decided to split it into two sections that bolt together securely using an M2 bolt. The rear part of the cage is anchored firmly in place by screwing it into the original mounting holes at the back of the tub, while the front section can be either glued down for added stability or left floating freely. The roll cage itself doesn't require any additional support due to its robust design, which was achieved by increasing the wall count until the infill material became unnecessary (I believe I used six walls as a minimum). This tweak not only eliminates the need for support but also adds significant strength to the overall structure.