Drive motor and controller LEGO connectors

prusaprinters

Connectors with LEGO-compatible studs for mounting a geared drive motor (commonly called a YG2900) using M3 pan head screws and nuts - plus connectors for two common motor controllers (HG7881 and L298N).The connectors can be used:either to build simple test beds for developing control code with (say) a Raspberry Pi or a simpler microcontroller like the ESP32, orfor building complete LEGO constructs with ‘mechatronic’ moving parts.More detailed context when used with a Raspberry Pi Maker Kit PCB assembly is available at this link and example ‘mechatronic’ software for a Raspberry Pi can be downloaded from here.All the components use 1.75mm PLA and a layer height of 0.15mm with print details for each component produced on an i3 Mk3 shown in the table below.component file name/descriptionneeds support (Y/N)brim (mm)filament length (m)print time (i3 Mk3)motor_vertical_LEGO_slim_case03_repaired.stl: connector that mounts the motor drive shaft verticallyY59.073h 33mmotor_vertical_LEGO_adaptor02_repaired.stl:  adaptor that connects to the motor drive shaftN52.1247mmotor_horizontal_LEGO_slim_case02.stl: connector that mounts the motor drive shaft horizontallyY55.142h 08mmotor_horizontal_LEGO_case01.stl: alternative connector arrangement that mounts the motor drive shaft horizontallyY57.383h 36mHG7881_LEGO_3x3_tile01.stl: connector for the HG7881 motor controllerY30.6921mL298N_LEGO_5x5_tile02.stl: connector for the L298N motor controllerY31.746m