10-21-2012, 12:19 AM | #1 |
RCC Addict Join Date: Mar 2009 Location: Interior BC
Posts: 1,786
| calculating Kv?
i browsed both Google & RCC and couldnt find what im after, im sure its posted somewhere but cant seem to find it? correct me if i am incorrect here....lol Kv = RPM per Volt Voltage x Kv / (Spur/Pinion) x .8 = total wheel speed? i probably am so far out on this but im new to brushless shit haha oh....and how do you determine what turn a motor is based off Kv? |
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10-21-2012, 12:40 AM | #2 | |
I wanna be Dave Join Date: Jul 2009 Location: Rancho Relaxo. California. USA. Earth.
Posts: 3,292
| Quote:
http://scriptasylum.com/rc_speed/top_speed.html Turns and kv ratings aren't usually static from manufacturer to manufacturer or motor to motor for that matter. The Novak chart on their site is a decent general starting point. | |
10-21-2012, 01:10 AM | #3 |
RCC Addict Join Date: Mar 2009 Location: Interior BC
Posts: 1,786
| Re: calculating Kv?
Damn! that cleared alot up, Thanks MeatWad! |
10-21-2012, 01:24 AM | #4 |
I wanna be Dave Join Date: Jul 2009 Location: Rancho Relaxo. California. USA. Earth.
Posts: 3,292
|
No prob |
10-21-2012, 01:28 AM | #5 |
I wanna be Dave Join Date: Dec 2009 Location: San Francisco
Posts: 2,236
| Re: calculating Kv?
You also didnt take into account the trans gear ratio or axle gear ratio unless that is what you were trying to do with the .8 (dont know where you got that from). There are RC speed calculators (like the one posted above), if you are aiming for a certain speed it should help figure out what you need in terms of motor speed. In all honesty you would probably be better off asking what motor other members would use for your intended use and the specifics of your rig. There isnt much that hasnt been at least tried before, some of it worked, some of it worked well, and some of it didnt work at all. |
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