Ninja diary

**Thunder arrow** · 22nd August 2011, 21:44

brushed or brushless for a blade/bar?

**Thunder arrow** · 23rd August 2011, 13:55

im buying a speed 900 motor, doing the new design right now :P

**Thunder arrow** · 23rd August 2011, 14:15

**Thunder arrow** · 23rd August 2011, 15:48

forget all other question
could i use a 12a sabretooth for 4 drill motors?

**Laser** · 23rd August 2011, 15:51

not really, you want a 25a version

**Thunder arrow** · 23rd August 2011, 16:01

where is the cheapest place to get them

**Laser** · 23rd August 2011, 16:12

umm robot bits or the robot market place

**Thunder arrow** · 23rd August 2011, 22:47

What the equation to work out how many amps a motor draws?

**Anttazz** · 23rd August 2011, 23:03

Amps = Voltage/Resistance

**RogueTwoRobots** · 23rd August 2011, 23:08

Also, P(ower) = I(Amps) x V(oltage)

Which can be re-arranged to get amps, such that:

I = P/V

Thread: Ninja diary