tekin r1mt

[Finnster]

In my business, the rule of thumb is the first product to launch usually takes the market, given they are of similar price, features and quality. I would bet much of the same applies here. If one is months behind the other and doesn't offer signifigantly better features, they will have a difficult time penetrating the market.

It should be an interesting race to see who gets it done first. Like many of you, I will be eagerly waiting for any reasonably priced controller that will be capable of reliably running 5S on a 1/8th scale/ MT setup, and is supported by good CS.

[RC-Monster Mike]

I look forward to these controllers myself. My micro rc18 uses the mini rage system and I wouldn't change it for anything. The R1 and R1 pro should be listed on the site in another week or so(when they get released), and I do have some mini-rage systems as well - just gotta put them on the site.
I am truly looking forward to Tekin's R1MT controller - If it does for monsters what the mini-rage does for micros, it will be a welcome addition to the currently available controllers - especially if it does it better than the rest. :)

[gixxer]

thats good news. I already put a r1 pro on backorder elsewhere, and hope it works a little better then my mamba. if not I will just put it in my mf2 or maybe in a crt.5.

Can anyone confirm that the R1 pro will do 5S? I'd really like something new to play with, but the current offerings really don't excite me. I'd like to try an R1 pro, but at twice the price of the MM, I don't want to toast it right off.

[gixxer]

Originally Posted by teamtekin

All of our speedos will actually work on 5slipo. We rated the R1 and R1pro for 3slipo so we do not have to explain that you cannot use the BEC on higher voltage. With the MT version we intend to offer a seperate BEC module. Groups like this will figure it out. The rest of the world is happy with 3slipo since that is plenty for the vehicles these are really designed for.

Tekin Prez

here is the quote from the president of tekin. he says it will do 5s if you disable the bec. that is what i want to try in my 8ight. the mm is doing well but is being pushed past its limits.

[crazyjr]

that sounds good i may have to try it

At this point, I'm wondering if the MT version is going to be all that much different from the R1 pro. Perhaps the only real difference will have to do with the bec. My LHS told me that they'd have the R1s in soon and I ordered one and then realized that the MT version was the one that I wanted, so I cancelled the order. I hope he ordered a couple anyway. I'll have to go by and see. I'm gonna go check out the specs on the R1 again.

If they are saying that it will do 5S, I'm wondering what it will really handle. LOL.


I checked out the site, but I didn't see any published specs, like how much current it can handle. Anyone know?

[gixxer]

I dont know. It would be nice if it would handle higher but right now I will be happy if I can have 5s and not need a fan. I currently dont have one on my mm but i know it will need it in the summer.

OK guys, I just got off of the phone with Tekin. I called to ask about the R1 pro, and I was told that there were revisions to the manual and those revisions are going to include reducing the max voltage to 3S lipo. Their testing indicated that the R1 pro is not reliable at 5S and 4S was questionable. This was not due to the bec, but the controller section itself.

I thought that we were having a pretty frank conversation, and he seemed to be pretty open about the limitations of the R1 Pro and in short the bottom line was, don't run the R1 on 5S.

He did say that the R1MT would be out soon, although he wouldn't elaborate.

[skellyo]

Originally Posted by AAngel

At this point, I'm wondering if the MT version is going to be all that much different from the R1 pro. Perhaps the only real difference will have to do with the bec. My LHS told me that they'd have the R1s in soon and I ordered one and then realized that the MT version was the one that I wanted, so I cancelled the order. I hope he ordered a couple anyway. I'll have to go by and see. I'm gonna go check out the specs on the R1 again.

If they are saying that it will do 5S, I'm wondering what it will really handle. LOL.


I checked out the site, but I didn't see any published specs, like how much current it can handle. Anyone know?

From what I gather, the R1MT isn't going to be any different then the R1PRO except for possibly a heatsink:

http://www.rc-monster.com/forum/show...8750#post98750

http://www.rc-monster.com/forum/show...8651#post98651

Well, after what I was told on the phone, I hope that there are a couple more differences between the pro and the MT.

[Finnster]

Earlier in the thread the Prez said the MT would double the # of Fets, so current should double I would guess. What the current rating of the R1pro is IDK, I don't see it on the website under specs (would be useful info... :007: ) Maybe its buried somewhere, but I don't care enough to go digging now.

Would a safe guess be 100A? Assume then the MT will be 200A?

I would not be suprised if CC and Tekin are planning to use the same Fets, there are only so many component manufacturers, and these are particularly well suited to the app....

Prez said they are rated as 30V, and with the explaination of the motor braking voltage spikes, I doubt it would be much higher. However, I do think that if one were to use manual brakes, its quite possible that either the CC or Tekin esc would run 6S safely. I think the info on the Fets also explains why the MM can run 5S well.

Hell it might even be possible to run the MM @ 6S using man brakes and not too hot of a motor (say on a 1/10 scale) and not fry the esc. It would make sense that the MM and MMM would use the same fets from a business perspective. What we'd end up buying is bigger Amp capacity and heat dissipation, not necc higher voltage capacity with the larger ESCs.

I had gotten the 120A number from the pdf manual on Tekin's site. When I saw that, in conjunction with the 5S claim, I started to get excited. I then called Tekin and had my bubble burst.

I'm starting to wish that I had an interest in 1/10th scale.

[gixxer]

you could always do the crt.5. 3s would be plenty in that.

[skellyo]

Since some of you haven't read what all TeamTekin has posted, here's some excerpts that should lay some questions to rest:

In reference to the Mamba Max FET datasheet BrianG posted:

Originally Posted by teamtekin

Since it appears you will tear it apart and look anyway maybe I should tell you what our fet is? I think the spec sheet will impress you. Far better than what you are looking at currently for large scale applications.

Again in reference to comparing their FET's to the MM FET's:

Originally Posted by teamtekin

Need to protect ourselves a little. The others will find this fet also I am sure. I will tell you the continuous drain current is higher, Rds on is lower, gate charge is lower and pulse current is unbelievable. Try over 250A vs 106A. Spendy little buggers however.

Referencing the number of FET's and heatsinking:

Originally Posted by teamtekin

Part of the of the magic is that we use 2 boards, half the current in each one. Shhhh Super heavy copper, multi layer, designed to reduce all trace lengths.

R1 has 24 fets, R1 rpo has 48 fets. We thought the Mt would need even more, but these fets are proving to be pretty amazing. It also helps to have the high voltages. Voltage is our friend and current is a beotch. Power =VI and more V reduces the I for a given power level.

Also our solder post make really good heatsinks because they are soldered to the power planes. It is basically a copper block and we can pull the heat from anywhere. We will likely flip it over and heatsink it on top just to make sure we have lots of head room. It really is a big block of copper and we can pull heat from the entire mass.

In reference to the BEC:

Originally Posted by teamtekin

We are just starting to test with the larger voltages. 5s should not be a problem, but like all speedos you will need a seperate BEC. Darn hard to step down that much voltage and be able to supply any current.

In reference to 6S operation:

Originally Posted by teamtekin

Pretty much everyone is using 30v fets. 6s is getting pretty close and does not leave much headroom for voltage spikes. Some fets handle over voltage better than others. The manufacturers do not address areas beyond the specs so you just have to test them and see. So far these fets are incredible. The better the circuit the lower the spikes and the better the chances, but braking battery regen can still be an issue. If the battery is full and will not accept the regen charge, the voltage can go really high, really fast. Just like motor flyback current that needs a diode or a rectification circuit like our G11, if you do not give the current somewhere to go then voltage spikes can be off the map.

We will know shortly. I am pretty excited about this market and with everything else finishing up we have time now to look at some new challenges.

IF you really need 6s or more and this will not handle it, we will build one that does. That is why we are here learning.