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View Full Version : TO CHOOSE THE RIGH MOTOR


enry74hh
04-13-2007, 07:18 AM
Hi,

How can I choose the right motor?

Step 1: I choose the number of cells,
Step 2: I choose the RPM of the rotor that I want obtain,
Step 3: I choose the Kv (RPM/Volt) of the motor and the right reduction ratio; for this choise: it is better to choose a low Kv and a low ratio or an high Kv with an high ratio; both solutions are good to achieve the same RPM… but which solution is more efficient?

An actual example:

Hirobo Lepton EX
No.of Cells 5S

(solution 1)
Motor Hacker A30-XL-08 (Kv 1100)
Gear-Ratio 94/16
RPM max 3200


(solution 2)
Motore Hacker A30-XL-12 (Kv 700)
Gear-Ratio 94/25
RPM max 3200

Which is the criterion for the best choise?

Thank you in advance for the information
Enrico

Wesley_G
04-16-2007, 12:51 PM
For the 5s setup A30-XL and a 23pinion will put you in the plus 3000 range which I find
is the sweet spot for the Lepton.

t-rexn8
05-12-2007, 03:46 PM
Whats up Wes.

Do you have any experience with this setup?

Nathan.