Gearbox base for dynamometer measurement

This is an additional part to measure the torque of the motor using the gearbox.
I systematically studied the DC motor torque, speed, and the relationship between them. Now I know the real meaning decrease the speed and increase the torque. It is not simply adjusting the input voltage to modify the motor working condition, but keep the motor working in good condition and change the gearbox ratio to adjust the output speed. This is the secret between the torque and speed in DC motor indeed. I do the experiment and explain the result based on experimental data. Hope you will like it.

Detail information on Youtube
https://youtu.be/OpRYf1-m8ow

The gearbox and torque meter can be downloaded in my model sets.

Have a nice day!