The part about assigning a channel first is critical. Prior to these videos, when I stumbled through setting a Rex Assist up by myself, I spent about three hours trying to get it to recognize the switch to go between modes. I was ready to throw the whole system in the trash and go back to my simple DX8, but cooler heads prevailed and i asked for help on a forum. I think you were the guy that answered my question back in Feb. Thanks
Hi Scott, yes, the tuning knob at 0% will have no effect on the default gain settings. Going negative will reduce gain, going positive will increase it above default. Default is a pure guess by Jeti, hopefully with a reduction as a safety factor. "Jet" covers all sorts from small foamy edf to huge heavy gas turbine models. There is no way that one gain can be right across the numerous parameters that govern what is a "correct" and safe gain, which is why you need to be able to adjust it to suit your model.
Hello Harry, I flew my airplane for the first time with my new Jeti DS-12 Transmitter and REX7 Assist Receiver yesterday and it flew just fine thanks to your help. One improvement I would like to make is to (if possible) have the Gain Knob for the Assist a ratcheting or detenting type of knob so I can be sure that the knob didn't move between when I set it and when I land and make note of how much Gain I cranked in. As of right now, the knob only has one detent position and that is at 50 percent. I'm interested in having many detents (like the throttle stick has) so it will stay put where I set it. So please let me know if such an option exists. Thank you.
Not that I know of, the 14/16/24 knobs have ratchets so I guess you have a 12? One thing you could try is have the knob speak its value to you whenever you stop turning it, then you have to remember that last value until you land. Then you can move the knob until it again speaks that value to you, and read off the channel travel value in the servo monitor screen. The knob travel value that is spoken to you is just that, the knob value, it is not the channel/servo value which may be different due to rates, curves, limits and so on, which is why you must read and replicate the channel travel value. to switch on the spoken value go to Advanced Properties, Sound of Prop. Controls, select the knob as control and set the mode to Voice
Hello Harry, do you have a video on how to set up the Gyro / Stabilization that uses only one Gain Knob to control the Elevator, Aileron, and Ruder Gyro Gains at the same time? My reasoning is that I don't want to tie up three adjustable controls when I really only need one. Also, I think I would rather have less a chance to get something out of whack.
Hi Harry thank you for all of your work I have been following your assist videos I have an issue with yaw the assist is putting in the opposite movement rather than correcting it I can't see how to over come this?
Are you absolutely, absolutely sure that: 1. It is putting it in the wrong way? It's easy to think it is going the wrong way. 2. You have chosen the correct orientation of the Rx in the setup wizard? Probably yes because I think at least one other axis would be wrong as well, bit worth double checking.
Problem solved, I was following your instructions to the letter in setting up a brand new REX7 Assist checking for latest firmware and calibrating before installing in the model everything was fine although when installed in the model I had to reverse the rudder output this in turn caused the assist problem. Re-calibrating the yaw within the assist has now resolved the problem.
Harry, I have a 1/3 Stearman that goes left as soon as the tail comes up. I’m not fast enough to catch it. What would help me takeoff straight!!? Heading hold for Rudder only for takeoff only then switch to damping?
Also, with my gliders, my left side slider controls camber, right slider P5, down from neutral controls gives nice progressive down elevator. UP from neutral is available, but the default is POSITIVE gain. Can I make up from neutral NEGATIVE gain? My P7 and P8 knobs are spoken for (volumes). I have a DS16.
Harry, I have done this and set up the gain for all three axis like you do on one knob, my 6 knob. I have it set -100-0-100. in the gain tuning channel on the rex. If I fly it with the knob in the middle middle at zero will the wizards setting be untouched? My last aircraft that I had the assist installed, a Freewing Phantom with it in Jet mode. I just used the settings that the wizard came up with and it flew beautifully. But i like the idea that i can tune, add or subtract from that base setting.
Trying to set up Jeti assist on a competition F5J GLIDER. I ONLY want mild rudder gyro. Obviously I need the model to react to the air in pitch and roll (no assist). I just want slight heading dampening. How to do I tell my receiver to ONLY react on the rudder axis?
Hi Harry. Thanks for the assist videos. My question is why have a master gyro on-off switch instead of Jeti default Active Mode 1 (Manual- Assist off). I would be grateful if you could explain.
Several reasons - 1. If you want 3 stabilisation modes, the on/off has to be elsewhere 2. Even if I use only 2 modes, I do not use a dedicated switch for the modes, I use something like the retract or flap switch so it cannot also be the on/off switch. 3. I have been using gyros for a decade before Assist was available and always programmed a dedicated on/off switch. It is standardised across all my models, so if I have to switch the gyro off in a hurry then my brain knows to move that switch. Having some models use a certain position of a 3 position switch elsewhere on the Tx is asking for trouble!
Harry Curzon Thanks for the reply. It does now make more sense. My first model on Jeti and I wouldn’t have come so far without your videos. Thanks again.
Harry, I must be thick...if you have one 3 position switch that is gyro off, normal, hold .... how does having a dedicated switch for on off benefit you? You’re fumbling for a second switch in a panic. Educate me.
@@RTD1947 Several reasons - 1. If you want 3 active stabilising modes, the on/off has to be elsewhere. 2. Even if I use only 2 modes, I do not use a dedicated switch for the modes, I use something like the retract or flap switch so it cannot also be the on/off switch. 3. I have been using other brands of gyros for a decade before Assist was available, (and I still do), and I always programmed a dedicated on/off switch. That 2 position switch is standardised across all my models, so if I have to switch the gyro off in a hurry then my brain knows to move that switch. Having some models use a certain position of a 3 position switch elsewhere on the Tx is asking for trouble! Don't be misled by Jeti's instructions into thinking you must have a 3 position switch - heading hold, off, damping mode. You don't even need a mode switch at all, and if you do want modes it may be any combo of 2 or 3 from training, 2D, damping, heading, off, and it may be done piggyback off some other function switch such as retracts, flaps etc.
Good Morning Harry, I am setting up the Assist Mode switch (SE) for a new receiver and when I'm in the REX7A Stabilization screen I can only get Active Mode 2 and 3 to show up on the bottom right of the screen when I flip switch SE through all three positions. It only shows Active Mode 2 and 3 (no Active Mode 1). Can you think of a reason why this would happen? I went back into my Functions Assignment page and Switch SE does show three distinctive graphical representations for the three switch positions when I move Switch SE through all three positions, so this has me a bit confused.
@@cotswoldpilot Hello Harry, here's the answer to the question you asked me: The Servo Monitor screen shows 0, +50, and +100 percent with respect to the lower, mid, and upper Switch SE positions (no negative values). Another weird symptom is that if in the REX7A Stabilization Screen and I switch from the upper position while showing Mode 3 to the middle position, the Mode doesn't change; it stays at Mode 3. Now if from there I flip the Assist Mode Switch (SE) down to the lower position then I get a Mode 2 indication. Here's the weird part: If I now switch to the middle position, the Mode Indication doesn't change; it stays at Mode 2. So the middle switch position doesn't show the same Mode when switching to it from the upper position as it does when switching to it from the lower position. Let me know if my description of the symptom helps any. Thank you.
@@michaeldamico5152you have not assigned the switch correctly in function assignment. The servo output should be minus 100, 0, plus 100. I suspect you have pressed the Centr button
Thank you for telling me where my mistake was. After assigning the Assist Mode Switch configured as “Center” I can now see the switch can select all three modes.
Hello Harry, can I assume that if the "Assist-Off" screen reads "OK" (to the left of the word Exit) then that means that for whatever position the Assist-Off switch is currently in the Gyro will be turned off? Conversely if the screen reads "X", then the Gyro Assist is On? Please confirm. Thank you.
@@cotswoldpilot Thank you. I confirmed with a servo (as you suggested) that when the Assist-off screen on the Transmitter Display reads "OK" then that means the Gyromaster Switch I assigned is in the Gyro Off Position (in my case the Down position). So that's Positive Logic.
Middle is always mode 2. But you just set each mode, that is each switch position, to any stabilisation type that you want. So it can be switch up/mode 1 is OFF, switch middle/mode 2, switch down/mode 3.
What i doing wrong? in episode 3 i set:1x on/off gyro switch, 1x switch for gain for all 3 axis, and 1x switch for flight modes or call it gyro modes. checked in functions assist and all 3 are set. thit go to servo assignment all standing there. THEN i got a problem whit the flight modes switch, it just stand on 1 position? on/off switch working, gain knob works but the flight modes gain switch dont work, i get that you must do whats in episode 3 but i thit that..... Please help...
In the transmitter, look at the servo monitor for the channel you are using for Assist modes. Does it move between -100, 0, +100 when you move the mode switch?
The part about assigning a channel first is critical. Prior to these videos, when I stumbled through setting a Rex Assist up by myself, I spent about three hours trying to get it to recognize the switch to go between modes. I was ready to throw the whole system in the trash and go back to my simple DX8, but cooler heads prevailed and i asked for help on a forum. I think you were the guy that answered my question back in Feb. Thanks
Hi Scott, yes, the tuning knob at 0% will have no effect on the default gain settings. Going negative will reduce gain, going positive will increase it above default. Default is a pure guess by Jeti, hopefully with a reduction as a safety factor. "Jet" covers all sorts from small foamy edf to huge heavy gas turbine models. There is no way that one gain can be right across the numerous parameters that govern what is a "correct" and safe gain, which is why you need to be able to adjust it to suit your model.
Thank you again for these videos. and your quick reply :-)
Hello Harry, I flew my airplane for the first time with my new Jeti DS-12 Transmitter and REX7 Assist Receiver yesterday and it flew just fine thanks to your help. One improvement I would like to make is to (if possible) have the Gain Knob for the Assist a ratcheting or detenting type of knob so I can be sure that the knob didn't move between when I set it and when I land and make note of how much Gain I cranked in. As of right now, the knob only has one detent position and that is at 50 percent. I'm interested in having many detents (like the throttle stick has) so it will stay put where I set it. So please let me know if such an option exists. Thank you.
Not that I know of, the 14/16/24 knobs have ratchets so I guess you have a 12? One thing you could try is have the knob speak its value to you whenever you stop turning it, then you have to remember that last value until you land. Then you can move the knob until it again speaks that value to you, and read off the channel travel value in the servo monitor screen. The knob travel value that is spoken to you is just that, the knob value, it is not the channel/servo value which may be different due to rates, curves, limits and so on, which is why you must read and replicate the channel travel value. to switch on the spoken value go to Advanced Properties, Sound of Prop. Controls, select the knob as control and set the mode to Voice
Hello Harry, do you have a video on how to set up the Gyro / Stabilization that uses only one Gain Knob to control the Elevator, Aileron, and Ruder Gyro Gains at the same time? My reasoning is that I don't want to tie up three adjustable controls when I really only need one. Also, I think I would rather have less a chance to get something out of whack.
You just assign the same knob to all 3 axes
Hi Harry thank you for all of your work I have been following your assist videos I have an issue with yaw the assist is putting in the opposite movement rather than correcting it I can't see how to over come this?
Are you absolutely, absolutely sure that:
1. It is putting it in the wrong way? It's easy to think it is going the wrong way.
2. You have chosen the correct orientation of the Rx in the setup wizard? Probably yes because I think at least one other axis would be wrong as well, bit worth double checking.
Problem solved, I was following your instructions to the letter in setting up a brand new REX7 Assist checking for latest firmware and calibrating before installing in the model everything was fine although when installed in the model I had to reverse the rudder output this in turn caused the assist problem. Re-calibrating the yaw within the assist has now resolved the problem.
Harry, I have a 1/3 Stearman that goes left as soon as the tail comes up. I’m not fast enough to catch it. What would help me takeoff straight!!? Heading hold for Rudder only for takeoff only then switch to damping?
Also, with my gliders, my left side slider controls camber, right slider P5, down from neutral controls gives nice progressive down elevator. UP from neutral is available, but the default is POSITIVE gain. Can I make up from neutral NEGATIVE gain? My P7 and P8 knobs are spoken for (volumes). I have a DS16.
Harry, I have done this and set up the gain for all three axis like you do on one knob, my 6 knob. I have it set -100-0-100. in the gain tuning channel on the rex.
If I fly it with the knob in the middle middle at zero will the wizards setting be untouched?
My last aircraft that I had the assist installed, a Freewing Phantom with it in Jet mode.
I just used the settings that the wizard came up with and it flew beautifully. But i like the idea that i can tune, add or subtract from that base setting.
Trying to set up Jeti assist on a competition F5J GLIDER. I ONLY want mild rudder gyro. Obviously I need the model to react to the air in pitch and roll (no assist). I just want slight heading dampening. How to do I tell my receiver to ONLY react on the rudder axis?
Only calibrate rudder in the assign controls part of the setup wizard. If already done, just disable elevator and aileron in the Assist mode settings.
Hallo Scott.Is this 3 different ways to Set up the assist receiver or just one Way?Think my Boing 777 Rating was easyer.
Hi Harry. Thanks for the assist videos. My question is why have a master gyro on-off switch instead of Jeti default Active Mode 1 (Manual- Assist off). I would be grateful if you could explain.
Several reasons -
1. If you want 3 stabilisation modes, the on/off has to be elsewhere
2. Even if I use only 2 modes, I do not use a dedicated switch for the modes, I use something like the retract or flap switch so it cannot also be the on/off switch.
3. I have been using gyros for a decade before Assist was available and always programmed a dedicated on/off switch. It is standardised across all my models, so if I have to switch the gyro off in a hurry then my brain knows to move that switch. Having some models use a certain position of a 3 position switch elsewhere on the Tx is asking for trouble!
Harry Curzon Thanks for the reply. It does now make more sense. My first model on Jeti and I wouldn’t have come so far without your videos. Thanks again.
Harry, I must be thick...if you have one 3 position switch that is gyro off, normal, hold .... how does having a dedicated switch for on off benefit you? You’re fumbling for a second switch in a panic. Educate me.
@@RTD1947 Several reasons -
1. If you want 3 active stabilising modes, the on/off has to be elsewhere.
2. Even if I use only 2 modes, I do not use a dedicated switch for the modes, I use something like the retract or flap switch so it cannot also be the on/off switch.
3. I have been using other brands of gyros for a decade before Assist was available, (and I still do), and I always programmed a dedicated on/off switch. That 2 position switch is standardised across all my models, so if I have to switch the gyro off in a hurry then my brain knows to move that switch. Having some models use a certain position of a 3 position switch elsewhere on the Tx is asking for trouble!
Don't be misled by Jeti's instructions into thinking you must have a 3 position switch - heading hold, off, damping mode. You don't even need a mode switch at all, and if you do want modes it may be any combo of 2 or 3 from training, 2D, damping, heading, off, and it may be done piggyback off some other function switch such as retracts, flaps etc.
Good Morning Harry, I am setting up the Assist Mode switch (SE) for a new receiver and when I'm in the REX7A Stabilization screen I can only get Active Mode 2 and 3 to show up on the bottom right of the screen when I flip switch SE through all three positions. It only shows Active Mode 2 and 3 (no Active Mode 1). Can you think of a reason why this would happen? I went back into my Functions Assignment page and Switch SE does show three distinctive graphical representations for the three switch positions when I move Switch SE through all three positions, so this has me a bit confused.
What %numbers does servo monitor show when you move the switch?
@@cotswoldpilot Hello Harry, here's the answer to the question you asked me: The Servo Monitor screen shows 0, +50, and +100 percent with respect to the lower, mid, and upper Switch SE positions (no negative values). Another weird symptom is that if in the REX7A Stabilization Screen and I switch from the upper position while showing Mode 3 to the middle position, the Mode doesn't change; it stays at Mode 3. Now if from there I flip the Assist Mode Switch (SE) down to the lower position then I get a Mode 2 indication. Here's the weird part: If I now switch to the middle position, the Mode Indication doesn't change; it stays at Mode 2. So the middle switch position doesn't show the same Mode when switching to it from the upper position as it does when switching to it from the lower position. Let me know if my description of the symptom helps any. Thank you.
@@michaeldamico5152you have not assigned the switch correctly in function assignment. The servo output should be minus 100, 0, plus 100. I suspect you have pressed the Centr button
Thank you for telling me where my mistake was. After assigning the Assist Mode Switch configured as “Center” I can now see the switch can select all three modes.
Hello Harry, can I assume that if the "Assist-Off" screen reads "OK" (to the left of the word Exit) then that means that for whatever position the Assist-Off switch is currently in the Gyro will be turned off? Conversely if the screen reads "X", then the Gyro Assist is On? Please confirm. Thank you.
Maybe, plug in a servo and see what happens
@@cotswoldpilot Thank you. I confirmed with a servo (as you suggested) that when the Assist-off screen on the Transmitter Display reads "OK" then that means the Gyromaster Switch I assigned is in the Gyro Off Position (in my case the Down position). So that's Positive Logic.
Hi. Is it possible to set on/off and mode 1, 2, 3 with one 3-position switch? ex] up,off , middle on mode 1, down on mode 2..
Middle is always mode 2. But you just set each mode, that is each switch position, to any stabilisation type that you want. So it can be switch up/mode 1 is OFF, switch middle/mode 2, switch down/mode 3.
@@cotswoldpilot Thx. I will try tonight.
What i doing wrong? in episode 3 i set:1x on/off gyro switch, 1x switch for gain for all 3 axis, and 1x switch for flight modes or call it gyro modes. checked in functions assist and all 3 are set. thit go to servo assignment all standing there.
THEN i got a problem whit the flight modes switch, it just stand on 1 position? on/off switch working, gain knob works but the flight modes gain switch dont work, i get that you must do whats in episode 3 but i thit that..... Please help...
In the transmitter, look at the servo monitor for the channel you are using for Assist modes. Does it move between -100, 0, +100 when you move the mode switch?
3:15 to 4:18 is just the wizard from Oz...
How did you gett all three to be the same in seconds??
Assign the same P8 knob to all three
@@cotswoldpilot Ok, as you in the previous video separated the three gains, I thought you still worked on them, not all three combined on one knob.