GT3B Hack Question and Answer Thread

[spoo76]

That sounds like a cool setup. I've never built a dedicated drifter,but for a long time I've wanted to build a dual motor drifter with adjustable bias quicker than what we use for crawling.

 

[losikid]

What do you mean by quicker?

 

[spoo76]

Well again, I've never built a dedicated drifter let alone with a dual motor. It seems like being able to very quickly and easily adjust the front and rear bias on the fly would be beneficial. I haven't messed with the dual motor setup on my GT3b much. I swaped out my tekin & punk dig for smashed mamba micro setup, but the Berg has been apart for years

 

[JokersWild]

Yall both need to build some scalers too. Lol"thumbsup"

 

[losikid]

Yall both need to build some scalers too. Lol"thumbsup"

Yea, but for some reason I prefer dumping money into the 1:1

 

[Tech]

I can't find the option to order a gt3b through that order here hyperlink. The availability says not available, is that what it always says? Going to order one if possible.

 

[JokersWild]

I've had mine for well over 13 years........ been built for at least 10 of those years.... too many posers up here. Holds down my garage floor now. Haha....... I dump money into all, but again I'm single!! "thumbsup"

Yea, but for some reason I prefer dumping money into the 1:1

 

[Dustinf]

@losikid

You certainly deserve compensation for all you've done. I did this hack a couple years ago and printed the original manual that I've been using. I was suprised to see your still at it and still giving support. Very noble of you.

It's amazing what you've done with this thing.

 

[PSH72]

Hi losihkid

just curiosity

When you say "....(use 1K resistor to GND to get middle state) " is the 1K resistor on the RX our in the servo?


Functions assignable to keys:
=============================
OFF - nothing
CHn - switch channel "n" value from one end value to opposite end
value. There is special handling for CH3 button. When using
3-position switch instead of CH3 button and momentary is
selected for this button, then centre 3-pos value will also
be detected and set to servo (use 1K resistor to GND to get
middle state)

​

 

[losikid]

Hi losihkid

just curiosity

When you say "....(use 1K resistor to GND to get middle state) " is the 1K resistor on the RX our in the servo?


Functions assignable to keys:
=============================
OFF - nothing
CHn - switch channel "n" value from one end value to opposite end
value. There is special handling for CH3 button. When using
3-position switch instead of CH3 button and momentary is
selected for this button, then centre 3-pos value will also
be detected and set to servo (use 1K resistor to GND to get
middle state)

​

No, that is for internal modifications inside the radio. I don't suggest doing this unless you absolutely need a 5th 3 position switch. Even if you did need a 5th 3 pos switch. I'd recommend using multi position on the channel 3 button before modding the radio. Because I haven't tested that part of the firmware and can't help you much.

 

[losikid]

So this whole GT3C enter button issue. I think I just found the perfect replacement button. I originally found 3 buttons I thought would be suitable replacements but all their dimensions were off just enough to cause issues. But I think I finally just found an identical replacement. Looks the same and according to the datasheet, same size.

I have a small batch on the way, and I'll test them out. Then let ya'll know.

 

[Bergm@n]

hi guys

I've an issue with my BRmini dual from Holmes Hobbies and a Flysky GT3C hacked to manage dual esc.
I've setted up few BRmini dual with GT3 hacked for friends and never run in this kind of issue.

Issue is : when I dig the radio, one of the motor goes full throttle, when I dig the other way, it's the other
motor that goes full throttle.

What I've tried to resolve this issue :
- both esc are correctly calibrated with the radio : chanels are reversed, when I apply throttle : green light, reverse : red light
- radio has been flashed in 0.4 and 0.6 firmware, same results
- I've tried the radio on a rig with 2 castle esc : DIG is working as expected

I'm wondering if it's the brmini dual settings? but I don't know which parameter can act like this ?

Any idea guys ?

 

[losikid]

I don't understand how this can be happening on one set of esc's and not another.

What happens when you're not in dig?

 

[Bergm@n]

All is ok when not digging

Envoyé de mon Nexus 5 en utilisant Tapatalk

 

[losikid]

I have no idea how the dig mix could be causing this then.

 

[Galvo]

Hi guys A quick question On steering mixes. Im fairly new to this but have a hacked GT3B with the new firmware. What im wondering is can I mix the steering so it adds a bit of right to the mix under acceleration? As the car torques a bit to the left in the dirt when you throttle up. And if its possible is it an easy process?
Thanks again

 

[losikid]

Hi guys A quick question On steering mixes. Im fairly new to this but have a hacked GT3B with the new firmware. What im wondering is can I mix the steering so it adds a bit of right to the mix under acceleration? As the car torques a bit to the left in the dirt when you throttle up. And if its possible is it an easy process?
Thanks again

This type of mixing is currently not supported.

 

[Galvo]

Cheers for that. And thanks love the new radio.

 

[Bergm@n]

All is ok when not digging

More infos about my issue :
- I tried a 4PL on this set of esc : no problem all is working good even the dig
- I tried the GT3 on another set of HH brmini dual : same issue with dig :
if I push the dig display is " d 100 %" rear wheels spins full throttle forward
if I push the dig rear, display is " d -100 %" front wheels spins full throttle forward
- I flashed again the radio, reset, program it : same issue

Last firmware I tried is : 0.6.1.s.19
I programmed it like this :
Long Epoint : d - 3 - 0%
Long Rev : 3 - DIG - BMO - RE0 - PV1


Please help :roll:

 

[losikid]

Plug in two servo's. See what happens