Power feed for mini mill

[vincent52100]

I’m building a power feed (actually it’s built) using a motor from a Walmart Hyper Tough 18v drill motor. The issue I have is getting a controller for motor speed. I’ve tried to research the motor but cannot find whether it’s brushed or brushless. Does anyone know which it is or how to tell. Any idea on what speed controller to use? Another thing I’m wondering about: what happens if you use a PWM controller for a brushed motor on a brushless motor? Thanks

 

[Hawkeye]

I'm thinking that a brushless motor will have three wires, while a brushed motor has only two. I think brushless motors are just itty-bitty 3 phase motors. The speed control in the drill will generate three phases from the DC supply. I built a ducted-fan airboat this winter with a brushless motor. Three wires. Swapping any two of those wires will reverse the motor.

 

[hman]

If it's a brushless motor, there are many options out there. Here's one I've bought and found useful:

DC 5V-36V 12V 24V 15A Brushless Motor Speed Controller CW CCW Reversible Switch | eBay

Support motor: DC 3-phase brushless motor. Output current: 15A. Reversible: Support. Support speed range: within 50000RPM. We afford all cost if it's our fault.

www.ebay.com

If it's brushed motor (2 wires), here's a controller that should work. It's similar to one I've used for a drill motor:

6V-90V 15A PWM DC Motor Speed Control PWM Controller 12V 24V 48V 64V 72V 1000W | eBay

The maximum output power: 1000W. PWM frequency: 15kHz. The maximum continuous output current: 15A. The overload and short circuit protecting current is 20A. Duty Cycle adjustable: 0%-100%. NOTE : This can NOT be used to the BRUSHLESS motor.

www.ebay.com

 

[vincent52100]

Thanks for the info. It is a two wire motor. I’ll order a controller for the right motor. Anxious to get it working!

 

[Latinrascalrg1]

Can you not reuse the rest of the trigger control parts from the drill to control the speed?

 

[vincent52100]

Can you not reuse the rest of the trigger control parts from the drill to control the speed?

You would think so. Too embarrassed to explain why I can’t use it.

 

[T Bredehoft]

Yeah, I trashed a couple myself, trying to use drill motors for drive. I finally tumbled to 12 volt Auto Window motors.

 

[markba633csi]

Aliexpress and Ebay both sell several types of dc motor controllers, cheap too. I just bought a 5 amp 35 volt one for I think 2 dollars

 

[vincent52100]

Yeah, I trashed a couple myself, trying to use drill motors for drive. I finally tumbled to 12 volt Auto Window motors.
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I’m good at building BSG’s!