Desktop Marble Run using the Maker’s Beginner Kit

This is an amazing little marble run that utilizes the following parts from the Maker’s Beginner Kit:030 Micro DC MotorAAA Battery Terminal KitPower Cable Kit with 2mm Spade Terminals1:49.7 Dual-axis Plastic Reduction- Gear KitBT3 SHCS Self Tapping Screw8mm Stainless Steel BallsBegin by building a motor using the DC motor and the reduction-gear kit. The gearbox casing for the motor is not my design. It was borrowed from the Motorized Escalator - Beginner Kit Version by AlexY_. The maker has a nice video showing how to assemble the motor and the battery box that you will need to watch here. Print the remaining parts using the filament of your choice. PLA works great. The top cap for the lifting screw mechanism can be locked in place by inserting a small piece of raw filament into the locking holes, but I find that step is not necessary. Ensure that the screw mechanism can turn freely before installation. Assemble the 3-part screw mechanism and attach the motor before snapping them in pl