Drill motor
From FIRSTwiki
- This entry describes the drill motors included in the 2003 and 2004 kit of parts. Earlier drill motors had a smaller shaft and were not as powerful.
| Obsolete This article refers to something that is obsolete. |
| Drill (Skill Bosch) Motor | |
|---|---|
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| Stall current: | 127 amps |
| Stall torque: | 7.70 in-lb |
| Max power: | 376 watts |
| Free speed: | 19,670 rpm |
Two drill motors and gearboxes were included with every kit of parts. The drill motor, along with the Chiaphua, are the two most powerful motors included by a significant margin. One of the two basic skid steer drive trains included in the kit of parts utilizes one drill motor on each side of the robot.
Contents |
Included gearbox
The drill motor is provided with the accompanying gearbox in the portable drill that the motor comes from. It is a planetary gearbox with two gears with ratios of ratio here and here. The gearbox has a torque limiting clutch that can be set to disengage the gearbox from its output shaft at a certain torque. Additionally, the gearbox has two small pins that stop backdrive on the motor, but they can easily be removed.
Torque and Efficiency curves
Without gearbox
With gearbox set to low gear
Usage Notes
- Many teams use the Drill motors on their drive train because of its high power output, easy to use mounts, and accompanying gearbox that provides a large enough reduction.
- If the drill gearbox's torque limiter is used (not set to "drill"), robots may have jerky control, making it very difficult to drive. After a little practice, switching over to direct drive could be the solution. It risks burning out your motor if it stalls, but makes it much easier to control.
| 2008 KIP Motors: Chiaphua/CIM | Denso Window | Taigene Window | Keyang | Fisher Price | Globe | Banebots (RS-540, RS-550) |
| Older KIP Motors: Window | Seat | Van door | Drill | Fisher Price | Globe |
