Hi, newbie to rock crawling and brushless motors here.
I want to pair a custom chassis(1/10 size) with two brushless motors for a robotic project that needs to be able to carry a payload of about half a kilo off road.
I will probably have a two speed gearbox for high torque-low rpm and low torque-high rpm.
Now, I know that high kv and Amp ratings make for lots of torque, but the problem is that I have never used outrunners outside of RC planes, and inrunners... Never.
So I don't know how to compare brushless motors to brushed motors in terms of torque, but I do know that I need two brushless motors that can each deliver at least 12 kgf-cm after gearing down to the high torque gear, ideally with around 80-120 rpm at least at that same gear.
So my question is, is there a simple way to compare the torque of brushless motors against other brushless motors, and brushless against brushed?
And if you have any suggestions/recommendations regarding specific motors or ballpark spec figures, I'm happy to hear them.
(Also, the can size does not really matter much as this will be on a custom chassis which will be designed to fit the chosen motors, regardless of size)
Thanks in advance, and sorry for the long post!
Fossil
I want to pair a custom chassis(1/10 size) with two brushless motors for a robotic project that needs to be able to carry a payload of about half a kilo off road.
I will probably have a two speed gearbox for high torque-low rpm and low torque-high rpm.
Now, I know that high kv and Amp ratings make for lots of torque, but the problem is that I have never used outrunners outside of RC planes, and inrunners... Never.
So I don't know how to compare brushless motors to brushed motors in terms of torque, but I do know that I need two brushless motors that can each deliver at least 12 kgf-cm after gearing down to the high torque gear, ideally with around 80-120 rpm at least at that same gear.
So my question is, is there a simple way to compare the torque of brushless motors against other brushless motors, and brushless against brushed?
And if you have any suggestions/recommendations regarding specific motors or ballpark spec figures, I'm happy to hear them.
(Also, the can size does not really matter much as this will be on a custom chassis which will be designed to fit the chosen motors, regardless of size)
Thanks in advance, and sorry for the long post!
Fossil