Register | Help | Store Account | FliteTest Dashboard
Page 12 of 12 FirstFirst ... 2 10 11 12
Results 111 to 120 of 120
  1. #111

    Join Date
    Feb 2016
    Location
    Seattle
    Posts
    632
    I got the electronics placed and velcro installed and then the weight and balance refigured. I'm sure it'll take a few tweaks and corrections as I do the glide tests but it's good for now.

    Click image for larger version. 

Name:	1.JPG 
Views:	0 
Size:	650.9 KB 
ID:	87997

    Click image for larger version. 

Name:	2.JPG 
Views:	0 
Size:	561.7 KB 
ID:	87998

    Click image for larger version. 

Name:	3.JPG 
Views:	0 
Size:	207.3 KB 
ID:	87999

    My next step was to program the radio and this part stumped me. Maybe you guys can help. Here's a picture of how I plan to plug in the different parts. I have a DX9 radio.

    Click image for larger version. 

Name:	4.JPG 
Views:	0 
Size:	542.4 KB 
ID:	88000

    AUX1 has the ESC (not connected in this image)
    GEAR has the left wing spoiler
    RUDD has the right wing spoiler
    ELEV has the elevator
    AILE has the rudder

    What I want:

    The AUX1 to be programmed to a switch so that the motor is on or off.
    The GEAR and the RUDD to be programmed to the throttle stick so that I can control them with a high degree of precision and trim them separately.
    The ELEV and AILE are easy and I've got those figured out.

    Help?

  2. #112
    Tench745's Avatar
    Join Date
    Jun 2014
    Location
    Baldwinsville, NY
    Posts
    538
    Um... you could probably mix things to make that happen, but, why?
    The easy way, to my mind, would be to put the spoilers on AUX and GEAR and the ESC into throttle. You could program the spoilers on the rear sliders if you wanted to control them separately. I don't know enough about the DX9 to tell you how though.
    Hangar: Hobbyzone Champ, Speedster, Curtiss Jenny, FT Scout, Cafe Air Racer Mk II, Bluntnose Versa, Eachine H8 mini quad, ZMR 250 quad.
    Workbench: Progressive Aerodyne Searey, Cafe Air Racer Mk III
    Deceased:Cafe air racer 78, flying wing built from crashed air racer, FT Flyer Guillows FF P-51D

    "Who wants to life a life imprisoned in safety?" Amelia Erhart (from the movie, Amelia)

  3. #113

    Join Date
    Feb 2016
    Location
    Seattle
    Posts
    632
    I could but the rear sliders aren't comfortable to control at the same time while also trying to land with rudder and elevator. Also, I want fine control of the spoilers and I won't need fine control on the throttle. I could feasibly move the servos to different ports on the RX but that's beside the point. I don't know how to program the radio to different ports on the RX. I'm pretty sure I want to do it the way I described and just need help with letting the radio know.

  4. #114
    Aviation Enthusiast nhk750's Avatar
    Join Date
    Sep 2016
    Location
    Seattle, WA
    Posts
    531
    Thanks for the pics! It looks great. I'm going to make a balancer like yours too. I'm getting pretty good with programing the DX8G2, but I will need to think about what your trying to do when I am more awake. I do know that you can do just about anything with the DX8-20 radios, they are good for that.
    Cessna 172SP pilot, thriving RC pilot...

  5. #115

    Join Date
    Feb 2016
    Location
    Seattle
    Posts
    632
    I didn't realize this until last night: I'm basically done except programming the radio and the maiden.

    I can't seem to figure out how to program the freaking transmitter. Apparently, plugging the ESC into any port except the throttle on the RX is a no-no in order to ensure the failsafe works. I realized I don't even know what failsafe is or does. I'm so at a loss right now it feels alien to me. I've never been this slow on the uptake of new technology (new to me!) and it really feels weird. I won't have time to mess with it until Sunday or Monday but we'll see where the next attempt takes me.

  6. #116
    Kite Eating Tree Trimmer cranialrectosis's Avatar
    Join Date
    Jul 2013
    Location
    Colorado Springs
    Posts
    4,920
    Goodness what an elegant bird. Thanks for the photo!
    Freiheit schöner götterfunken tochter aus elysium!

  7. #117
    Aviation Enthusiast nhk750's Avatar
    Join Date
    Sep 2016
    Location
    Seattle, WA
    Posts
    531
    I believe your correct, the esc has to be in port #1, throttle. But, you can create mixes and also different flight modes so can can assign switches on the tx to do almost anything you can imagine. The problem I have been running into is that there are not very detailed instructions on how to do this written by Spektrum. Someone out there probably has a detailed guide, but we just need to find it. I have experimented with some stuff and I just havnt had time to get into it any further lately as I got what I needed to work and stopped there. I have read that guys can create mixes and flight modes for knife edge, hovering, glider modes, ect, so its just a matter of finding a better instruction for the tx.
    Cessna 172SP pilot, thriving RC pilot...

  8. #118

    Join Date
    Feb 2016
    Location
    Seattle
    Posts
    632
    Yep. I read all over the place things like "just bind the throttle stick to one spoiler and mix the other" but I have no idea HOW to do that lol. I don't really need theory just yet, I need practical steps to follow and then I can try to understand the theory. I can't find steps anywhere.

  9. #119
    Moderator Craftydan's Avatar
    Join Date
    May 2013
    Location
    Middle Ga
    Posts
    7,396
    Hey Tex!

    She's a beauty. Only thing that will make her prettier is blue sky around her

    As for CG, I've set mine to the "nonminal" position which is just a hair aft of the spar. It can go back farther . . . but for maiden, I'd recommend a touch more forward -- middle of the spar and work it back to your taste. On mine, "nominal" feels fairly close to neutral, and the aft position is known to be tail heavy. Most of what I've seen online says the leading edge of the spar is still safe, so middle of the spar should be a good place to start.

    As for failsafe . . . that exists entirely in the RX. When it looses signal, it's the backup plan it uses. There are a few brands that the failsafe can be adjusted through the radio, but for DSM RX's it's done either through the bind process or not at all(some RXs don't have a failsafe). power the plane down, plug in the bind plug, power up the radio, hold the channel positions you desire (throttle down, spoilers extended, rudder ~1/3, and elevator adjusted to encorage a somewhat downward spiral). power up the plane, and if all works well the RX will remember the positions. Pull the bind plug and power down the TX to verify.

    a few caveats:

    - Failsafe sometimes only works for the first 4 flight channels. some do, some don't. if your spoilers are mapped to an Aux channel, it may not respond.

    - Some RX's have a fixed fialsafe (throttle to 0, all else to middle), Some retain the last position (IIRC, none of the DSM RX's do that) and some don't have ANY failsafe (signals simply stop). In either case, most ESCs will simply stop, and in the second case the servos may go limp.

    I'd advise running a range check (as always) and then maidening *WITHOUT* setting the failsafe. get a feel for her at lower altitudes, and when you get a chance (and before you go hunting for that boomer) find a sweet-spot in the controls that will throw her into a somewhat flat spiral. This is what you'll set your failsafe to. Set that, and go find that boomer


    As for Programming . . . Id recommend sticking to TAER order with a few adjustments -- connect the rudder to aileron (so it flies off one stick) and plug one spoiler to the rudder channel (so it can respond to a failsafe) and the other to AUX1 (I've servo Y-ed mine together, but that makes sub-trim unavailable) . . . then we'll play with the mixing.

    - Mix -100% Rudder -> Rudder (always on), so the rudder Stick will be canceled by itself in the rudder channel output (4th channel). once this is on, moving the rudder stick will have no effect on the monitor page.

    - Mix a chosen "spoiler" switch -> rudder (always on). Adjust the % amount and offset to set them to the open and closed positions -- you can adjust a mid position through setting up a curve, if you care to.

    - Mix the spoiler switch -> AXU1 adjusted like the last mix so the two spoiler channels follow each other. Keep in mind, once spoilers break the laminar flow, their affect is practically "on" or "off" -- unlike flaps, there isn't much to feathering them out.

    You should now have throttle/nothing on the left stick, spoilers on a switch, elevator/rudder on the right stick.

    If you want to put throttle on a switch, create a mix+switch mapping like you did for the spoiler switch.


    So finish setting her up and find a nice blue patch of sky to frame her in
    Crafty Dan
    -<-' ~~~
    __________________________________________________
    What goes up, must be smashed into little pieces (eventually)

  10. #120

    Join Date
    Feb 2016
    Location
    Seattle
    Posts
    632
    I don't have time at the moment to thoroughly read this yet but THANK YOU for the detailed answer! I'll post something more when able.

Page 12 of 12 FirstFirst ... 2 10 11 12

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •