It's not about the Size of the wire its how you use it...... Or is it?

[Mentat]

I seen this brought up and was wondering. Does the length of the wire that u use matter? If so why? Example. Wire from the ESC to Motor. etc...

[starscream]

Originally Posted by Mentat

I seen this brought up and was wondering. Does the length of the wire that u use matter? If so why? Example. Wire from the ESC to Motor. etc...

Sensorless systems utilize timing for rotation so a shorter wire should provide a quicker response thus decreasing cogging, increasing performance and the overall efficiency of the system.

[Mentat]

so on the CC Monster Mamba 2200kv combo, is it recommend that you trim the wires to the exact size that u need them all around?

[lincpimp]

Shorter wires are better. I do not think that you will need to shorten the esc to motor wires, but I try to keep the battery to esc wires as short as possible...

[nitrostarter]

I called Castle about this issue with my combo and for my Hydra controllers. The tech guy suggested that if possible, shorten those wires! Better signals and faster responses, but also does something with the backfeed. So put those soldering skills to work and shorten some wires!

[Jabe]

If im correct, all those three motor wires should be same lenght for optimal performance.
I think you cant see nor measure any difference in stock wire lenght vs short as possible, the performance improvement is in your head... As difference in lenght in only few centimeters, solderings play bigger role.

[zeropointbug]

Yes, shorter motor wires would be better, it would have reduced cable inductance, thus cleaner back EMF signal processing.

[Mentat]

i don't know how something that travels near the speed of light can be measured.

[Krawlin]

The speed of light has been measured.... There are measurement units based on the speed of light (light-years).

[Mentat]

lol. the human eye or brain im betting can not perceive the difference in the shorten wires.

[nitrostarter]

Correct. But It can sense the extra cogging or blown ESC from backfed EMF...

[Mentat]

that brings up another questions, whats the deal with sensorless and sensored motors? the good the bad etc...

[suicideneil]

In days of old when knights were bold and you could still get a round in for under a fiver (£5), sensored was the way to go for minimum cogging and maximum reliability, as sensorless setups relied on dodgy escs with poor software, so cogging was a horrid problem. These days withn the likes of CC and Tekkin's latest escs and software/firmware, cogging is pretty much history.

The main issue now is that some companies rely on the sensored factor of their systems in order to convince people its better & thus make a sale, where as infact the real difference is down to power and control finess. The hvmaxx is fine for 4s lipo and pushing around stock emaxxes, but if you need/want more power and/or speed, you have to step up to a more powerful system, and thats where the Tekkin and CC stuff is king.

There is a good thread burried in the Castle sub-forum where Patrick explains about their software and why its better than sensored systems 99% of the time.

End of the day- hvmaxx for 40mph and low gearing with moderate power and weight of truck (its a 380xl rotor in a 550 can), CC or Tekkin for anything more powerful or heavier (true 550 sized motor).

[Mentat]

lol, nice write up. I guess what im wanting to know is how this is going to help me? I have been toying with getting a tekin system for my custom truggy im building. What will a sensored system do that a sensorless wont? I like the looks of the new tekin RX8 stuff with a 2250kv Truggy motor. So why and when would i run it sensorless or sensored modes.

[_paralyzed_]

sensors allow the esc to sense the motors rotor position, and can deliver power accordingly to reduce cogging. Cogging use to be a major problem but todays software revisions have pretty much eliminated cogging.

Some people will swear to you sensored systems are smoother. These are usually racers who know their cars so well they can feel if a fly landed on it from the drivers stand.

There aren't situations where you would use sensored or sensorless. If your motor and esc support sensors you use them. If one or both don't support sensors you don't use them.

edit: also- more wire=more resistance