I’m looking to replicate (more or less) the power and speed control offered by an 18 Volt brushless motor drill (something like this:)
https://www.homedepot.com/p/RIDGID-18-Volt-Lithium-Ion-Cordless-Brushless-1-2-in-Compact-Drill-Driver-Kit-with-2-1-5-Ah-Batteries-Charger-and-Bag-R86009K/206955210
in the 10-150 or so RPM range. It’s for a product I’m hoping to market, so it will need to be able to be integrated into a kit constructed by total laypeople (but woodworkers).
I’m a total novice to these issues myself. This would be for those who wanted to be able to not have to worry about battery depletion. The drill is well suited for the job in terms of speed and torque…though for my use only the bottom 1/10th of its speed range is ever used.
You could use a brushless motor with an ESC (Electronic Speed Controller).
Since you need slow RPM and high torque, you could use a DC brushed geared motor.
Let me know once you have made a choice and if you need any additional information.
Thanks for this guidance.
The drills claim about 500-600 inch-pounds of torque. This seems way higher than the motors I’m seeing, or am I reading things wrong? Or do you think the drill makers are using a different way of reckoning (exaggerating?)Thanks!
I think you were reading it right. Effectively, the torque in a drill is pretty high.
If you don’t need high RPM, I suggest the following which is one of the strongest geared motor in the catalog: https://www.robotshop.com/en/12v-12rpm-81102oz-in-hd-planetary-gearmotor.html?product-code=RB-Sct-1017
8110 oz/in is around 506 pounds/in.
Else, go with a BLDC motor and use some gear reduction to reduce the speed and increase the torque.