Spring 2016: 3DoT David Gear Train
BY: Andrew Saprid ( manufacturing engineer)
Introduction:
The mechanical system for the 3Dot David is the gear train. Gears have teeth, which are designed to make the gear train rotate 360 degrees possible. The motor will operate around 5 volts, and it will be connected to the small gear as it drives the large gear. With the gear train setup, the 3Dot David will be able to move across the lyceum floor.
Related requirements
Level 2 system requirement follows:
- The 3DoT David shall use two micro motors for the movement system of the robot.
Motor calculations:
The motor previously used at 50,000 RPM was not the right value because it was unrealistic for the spider to run at that pace, which could easily break components inside of it. In order for the legs to move at a slow steady pace, the motor using will give 360 RPM at 5 volts as the legs will run at a pace of 2 cycles per second.
The team will use the motor at 360 RPM to drive the small to large gears.
120 RPM / 60 sec = 2 cycles per second for the large gear The gear train is 120 RPM
Conclusion
The team will use the motor at 360 RPM to drive the small to large gears.
120 RPM / 60 sec = 2 cycles per second for the large gear
Source: