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Kaetwo's Tekin FX-R Review...

So I have one I can't figure out. A guy at our last GTG has a AX10, Venom 50T Crawler Motor, 3 cell Lipo, FXR and DX3

We set his endpoints to 125% forward and reverse. Calibrated the ESC to the Radio. All fine.

Forward would give full linear trigger response to throttle speed.

Reverse however would be linear in the trigger to about 3/4 of the throw and the last 1/4 bit of throw in reverse would cause the ESC to drop the throttle to about 50%.

If we adjusted his endpoint down to a 100% on reverse it was enough to avoid the "travel" and the "problem" went away.

Any ideas on what's happening here?

-Mike
 
I have been setting my radio to 100% travel, then calibrating the radio. When the led's ramp up on the speedo, they should stay solid right until you get to wide open, then they should flash.
 
What software? If the epa's are going outside of our range it can cause it to "loop" back around. It shouldn't as I run the DX3r and have not had this issue. You can try to reset that model and start over fresh.
 
Hi Randy, I'm not 100% positive but I believe he is running the v3.24 software.

That's definitely what it felt like was happening was the epa was causing it loop.

It was easy to fix int he radio and for now I think he is fine.

I too run a Dx3R with 125% EPA, the same software and no issues, but this was a DX3.0?
 
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Well over the long weekend I spent some time trying new things to fix my DB issues. I couldnt get it to work right so I went back the the trusty old 55T that I never had a problem with, and now they do the same thing, lol. I soooo lost and WTF Im doing wrong now, lol. I think I might try going back to the old software in the ESC and see what happens. When I let off the throttle the brakes work great, stops very strong. But just no holding power. This weekend Im going to try my buddies 4PK and see if it fix's the issue. Maybe there is something wrong with my 3PK. I did try a stock traxxas radio again but it did the same thing too. I must be missing something. I did it with and w/o the BEC, new receiver, different radio, different motors, unplugging the steering servo, 2 batteries. And on the ESC the 4th LED will be lite but the DB dosent hold. Maybe I can just ship my set-up to somebody else to look at, lol
 
I've been going back and forth between teh FXR and the Rooster for a few days now. This thread has pretty much sealed the deal. Just have one question, if anyone is running a single FXR on a 2 motor rig, how well does it do?
Maybe one more question, I'm gonna be runing 2 400+ oz servos, should I get an external BEC? OR can the FXR handle it? What about the Pro?
 
FairTax4me said:
I've been going back and forth between teh FXR and the Rooster for a few days now. This thread has pretty much sealed the deal. Just have one question, if anyone is running a single FXR on a 2 motor rig, how well does it do?
Maybe one more question, I'm gonna be runing 2 400+ oz servos, should I get an external BEC? OR can the FXR handle it? What about the Pro?
Click to expand...

I run an FXR on my Berg with 2 45t motors, and so do lot's of other. Works great.

You'll want a BEC for sure.
 
Running two super strong servo's will require the use of a seperate BEC for best performance. Crawling works the bec's very hard because of constant high loads.

The question on dual motors and one esc is which motors? The Fxr and Fxr Pro can both handle dual motors very well. Dual 35's is like a single 17 turn for the esc and both can handle that as an example.
 
I agree with both of them. "thumbsup"

Get a BEC and you will be set. I run 2 35t Warrior-R's on my berg with a single FX-R and the wife has the same setup but with 45t's.
 
Awesome thanks for the help guys. Gonna run two 55T Tekin motors. Kinda wondering if the Pro motors are worth the extra money if I'm just gonna be crawling around the backyard?

Also any reccomendations on a BEC? I know CC makes quite a few of them. Would a 10 amp be enough or should I look higher?

Edit: Nother question (maybe I just need to make a new thread), Is it safe to draw so much current through the receiver, or is it better to hook the BEC up directly to the servos and use the BEC in the ESC just to power the receiver?
 
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FairTax4me said:
Awesome thanks for the help guys. Gonna run two 55T Tekin motors. Kinda wondering if the Pro motors are worth the extra money if I'm just gonna be crawling around the backyard?

Also any reccomendations on a BEC? I know CC makes quite a few of them. Would a 10 amp be enough or should I look higher?

Edit: Nother question (maybe I just need to make a new thread), Is it safe to draw so much current through the receiver, or is it better to hook the BEC up directly to the servos and use the BEC in the ESC just to power the receiver?
Click to expand...


I have not ran any of the Tekin motors but I am sure they would be great for that. As far as a BEC, you cant go wrong with the CC BEC. I would bet thats what 90 percent of your comp guys run......its the only one I have had. "thumbsup"

I prefer to run my BEC straight to the servo. I have burned up 2 mini servos and a $90 receiver......I am sure this was the cause of it. I changed it to bypass the receiver and I have not had 1 problem since.
 
The only thing I don't like about the CC BEC is that it says you need the Castle Link to program it. If the voltage is preset at 6v then I don't care, but I don't really feel like having to pay an extra $25 or so just so I can bump up the Voltage on the BEC, know what I mean?
 
That video on that site is insane. Thanks for the link Rockcrawler! I got one on the way! :D Now just have to wait for my motors and ESC to come in at the LHS, and I'll be crawlin!
 
I've read through 29 of the 33 pages here, and came up with another question... Does the Hotwire sofware work with Windows 2k?

prefer to run my BEC straight to the servo. I have burned up 2 mini servos and a $90 receiver......I am sure this was the cause of it. I changed it to bypass the receiver and I have not had 1 problem since.
Click to expand...
When you did that, you ran just the signal wire from the receiver to the servo correct? Or do you have to do signal and ground? What about receiver power? Did you use the internal bec in the FXR or did you run it off of the CC bec?
 
FairTax4me said:
I've read through 29 of the 33 pages here, and came up with another question... Does the Hotwire sofware work with Windows 2k?


When you did that, you ran just the signal wire from the receiver to the servo correct? Or do you have to do signal and ground? What about receiver power? Did you use the internal bec in the FXR or did you run it off of the CC bec?
Click to expand...


I do not have win 2K but I would think it would.

Yes, I run just the signal wire to the receiver and let the ESC power the receiver.
 
Perfect. I figured that would be the way to do it, but wanted to make sure before I toast a $70 receiver and a couple $125 servos.

Thanks for the help Rockcrawler. This forum kicks ass! I can see myself spending a lot of time here over the next few months reading through old threads.
 
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