I'm running a small robot project. I'm considering to switch from my 5v plastic motors included in the starter kit, to 12v ones. I'm considering to have the robot weigh 20-30lbs occasionaly, though as is, it can't haul maybe 10lbs very well.
Cost is REALLY an issue to us right now, so I'm thinking of recycling some parts, putting in a used go-cart battery for the (nearly) 12v, but I don't know what I need to in aspect to what gear ratios are required before searching EBay (where I get most of my parts, being on a TIGHT budget.
Thank you for any input!
In order to figure out what
In order to figure out what final RPM and torque of the needed motors, you need to also know the wheel size and how fast you want the bot to go. You will also need to know what type of steering you’ll do.
That being said, normally I tend to go for between 80 and 120 RPM. And don’t forget that you’ll need some real torque. Unfortunately I don’t have an estimate or the equations handy. There was a book called Robot Drive Trains that was part of the Robot DNA series that I liked, but haven’t reread in a while.
I do like some of the beefier motors from Servo City…
And don’t forget that you might need beefier motor drivers also. And they usually cost more than the motors.
It might also be nice to
It might also be nice to know what you’re price limit is. That way somebody might be able to point you in a better direction.
I did get a deal on 24v motors, which run fine at 12v, for about $20 per motor.