Hi everyone,
I'm a mechanical engineering student, so it goes without saying my knowledge of electricity and circuits isn't the best.
I'm working on my capstone project for my graduating semester. For this project we need to build a variable speed control for a DC motor. I took a motor out of a cordless drill (17V). Hooked it up to a power source as it ran fine, however we need something with better control for speed than the trigger switch. I tried to replace the trigger switch with a on/off switch and a potentiometer but hooking the motor up now, it doesn't even move.
I know I made a pretty huge error but I'm just not sure why this doesn't work. If someone could explain that to me and what I can do to fix it that would be awesome. thanks. I have access to many electronic components.
I've attached the schematic of what I tried.
I'm a mechanical engineering student, so it goes without saying my knowledge of electricity and circuits isn't the best.
I'm working on my capstone project for my graduating semester. For this project we need to build a variable speed control for a DC motor. I took a motor out of a cordless drill (17V). Hooked it up to a power source as it ran fine, however we need something with better control for speed than the trigger switch. I tried to replace the trigger switch with a on/off switch and a potentiometer but hooking the motor up now, it doesn't even move.
I know I made a pretty huge error but I'm just not sure why this doesn't work. If someone could explain that to me and what I can do to fix it that would be awesome. thanks. I have access to many electronic components.
I've attached the schematic of what I tried.
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