WTS - MGM TMM 2512-3s Brushless ESC 25 amp continous

[ronang]

CC can be used with outrunners no problem.

The CC25 only have problem with the gov mode. Otherwise it work perfectly with normal auto calibrating or fixed mode. With high pole count motors, the feedback freq is very high as switching for one revolution is multiple of say a 2 pole so it kind of looses track of the timing. Himax 2025 Haccker B20 Mega 16/15/4 are 2 pole. That is why Himax 2025 in a Zap on gov mode with a CC25 can work. CC25 can work with any commercially available motors at the moment in any fixed wing mode, except for poorly built home made B/L motors with inaccurate magnet spacing or weak magnets.

The TMM are definitely better built than the CCs. But at almost 1.5 the price. The new Hyperions look interesting.........

[X34]

Is it? I dun think so, Align is kinda low KV to me, I ran even higher RPM stuff like Himax 2025 5300, 4200, Mega and all were spinning beyond 30000K, where did you get that info?

Hi Edmond22,

In term of absolute rpm the align outrunner is low. In term of timing it is 5 times higher than a 2 pole motor(himax,hackers, lmt are 2 pole, mega are 4 pole, outrunner - some 10 some 12). To the esc, Himax 1 rpm is 1 rpm, Outrunner 1 rpm is 5 rpm.

If the Outrunner is 2700Kv, the esc will read it as 13,500 rpm. If the esc max rpm is 100,000. At best u can only use 2 cells lipo.

Cheers

James

[edmond22]

Hi Edmond22,

In term of absolute rpm the align outrunner is low. In term of timing it is 5 times higher than a 2 pole motor(himax,hackers, lmt are 2 pole, mega are 4 pole, outrunner - some 10 some 12). To the esc, Himax 1 rpm is 1 rpm, Outrunner 1 rpm is 5 rpm.

If the Outrunner is 2700Kv, the esc will read it as 13,500 rpm. If the esc max rpm is 100,000. At best u can only use 2 cells lipo.

Cheers

James

Still X34, I have been searching high and low, the only information regarding the use of outrunners like Model motors with this esc is that it is suitable and will need to have different timing adjustment accordingly if needed. Is this ESC limited to 100000rpm?

[X34]

Hi Edmond,

Most esc are around 100,000 rpm limit, some are 120,000.

If u operate Axi motors, the highest kv is about 1000 to 1200. Assuming u operate with 3s = max rpm 14,000 rpm. x5 = 70,000. Therefore well within spec.

Align 2700kv at 11.1 = 30,000 rpm x5 150,000. Not many controller can handle that.
If I recall correctly, CC is about 80,000 limit. Tmm is 100,000.

Tmm has one clear advantage over other esc - the throttle stepping resolution is 1024 points. Most others are 256.

Cheers

Cheers

[HZM]

Hi Edmond,

Most esc are around 100,000 rpm limit, some are 120,000.

If u operate Axi motors, the highest kv is about 1000 to 1200. Assuming u operate with 3s = max rpm 14,000 rpm. x5 = 70,000. Therefore well within spec.

Align 2700kv at 11.1 = 30,000 rpm x5 150,000. Not many controller can handle that.
If I recall correctly, CC is about 80,000 limit. Tmm is 100,000.

Tmm has one clear advantage over other esc - the throttle stepping resolution is 1024 points. Most others are 256.

Cheers

Cheers

Learnt something again

Mike

[suxbux]

Align comparative rpm is at a ratio of 4:1 , mega motors 3:1.
Figures quoted by most esc manufacturers are conservative units and broadly based on rpm values so open to interpretation not commutation values.

Align 2500kv x 4 gives a value of 10000 com/sec.within reach of most escs.Its the other factors that cause hiccups in some escs.

[edmond22]

Align comparative rpm is at a ratio of 4:1 , mega motors 3:1.
Figures quoted by most esc manufacturers are conservative units and broadly based on rpm values so open to interpretation not commutation values.

Align 2500kv x 4 gives a value of 10000 com/sec.within reach of most escs.Its the other factors that cause hiccups in some escs.

Ok, that's what I thought. I wouldn;t think it is that limitation that is causing all the hiccups.

[edmond22]

still for sale, name a price, thanks.

[pakkua80]

Edmond,
Quoting $85.

[fredrick]

I bought the same ESC. Apparently the 2512-3s is for heli. The 3s suppose has governor mode and a normal mode. Its has many features to protect the motor as well to supply constant current to BEC. The most important thing is it has 4.0Amp Bec which is enought for most application including running digital servos.

Very good ESC i would say. Support wise, guess not as good as cc esc cause made in Czeh. Programming a bit confusing. Especially the first step.

The max rpm it can support up 170, 000 and has 1024 step resolution which average ecs only has 256 steps.

[edmond22]

sold at $100, thanks for looking everybody!

[musclemachine]

sold at $100, thanks for looking everybody!

thank you edmond for selling me the esc.