ZOHD Nano Talon Evo elevator fix (RC Plane)
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- čas přidán 13. 11. 2019
- Here's a 5-minute fix for the problems with the ZOHD Nano Talon Evo's elevators. All you need is the judicious use of an XActo blade to free up the hinges and the problem will vanish, as if by magic! Stay tuned for the flight test of the modified model.
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Hey Bruce. Just received my Evo and these slots are now done by Zohd.
Hi Bruce, I prefer the plastic hinges in my foam models. I bought a DuBro 660 Hinge Slotter Kit to make the job easier. 👍
This is a quick and easy solution to a problem I've had with a few models, which normally I have had to resort to cut and tape, not always ideal, so thanks for sharing.🧐
Good engineering work Bruce !! I agree with the comments coming in to beef up the pushrods as an option as well. ZOHD may consider sending to you first, would save them time and give them free exposure .
Cut off the offending surfaces, clean up the joints then re-attach using UHU Por as the hingeline - invisible, strong & flexible!
Could you not slide some stiffeners over the push rods as well?
Great analysis! I checked my early V1 models and the hinges are very flexible so maybe they changed the manufacturing or materiel. I do remember some flyers filming the feathers deforming under stress.
On the pushrods bending front, I've had that on other models and slid & glued a carbon tube over the rod.
I'll add the thin carbon pipes on the pushrods. Weaking the hinge will help, but in the air there will be a force from the airflow on the elevator that may decrease this mod effect.
I have allot of thoughts on this Bruce, i had allot of these issues on version one if you go back and watch my first nano tlon maiden it came home in a box, however it soon became on of my favs.. VERY hard for me to get dialed in but im glad i saw this and look forward to being able to validate or refute with my own findings now that i'm finally free today to unbox and shoot this and the 250g im exited ill LYK my findings and with a little luck some maidens incoming tonight. But I will take time to address the exact issues brought up ill go over mine and let you all see if i have the same issues, All my best.. hats off to ya bruce. take care. ps worse case go 3 new mk2 digital servos otw, that can fix any problem in life... lol
You could also slide a plastic out sleeve over push rod to limit flex. That's what I am planning when mine arrives, after seeing this. Thx Bruce.
In keeping with your mod Bruce, I would also cut an angled notch on the inside of the hinges which may give some more free movement as well, just a thought.
Fantastic, Bruce! Thanks for sharing! 😃
Ironically they did listen to the folks and stiffened up all the control surfaces in the Evo because people said they where to sloppy in the original Nano Talon...
I have the original Nano Talon (with the sloppy hinges) and did the flat wing mod, glued all the wings in place and glued the square aileron connectors. Everything moves freely and is rigid! Flies like a dream! I love the thing!
It does seem to fix it on the bench, but once it up in the air, wouldnt the airflow be enough to bend the push rods again?
Would changing out the push rods be an option? or maybe sliding some thin copper/aluminium tubes onto the exsisting push rods to make them less bendy?
Glad someone said it
Now I want to try a couple of r/c car wheel bearings on those control rods, although I'm not sure of the thickness.
That's been a common problem in a number of foam aircraft iv'e had they all seem to have very light & flex'i push rods, I found an easy fix sometimes was to cut the rod & glue it inside a small carbon fiber tube in the fuselage to stiffen it up.
For alierons will be maybe good shot to reprint the couplings on frame side. and for ZOHD they should do conection couplings with star shape like torx head screws and with lite bit tighter tolerance.
Excellent video as always.
Cheers mate, u and Andrew should be in research and development 4 all rtf rc planes.
Taking my nano talon evo out for a maiden flight this morning. I've never flown fixed wing before. I'm hoping to bring it home in 1 piece!
So, how did it go?
Nicely done!!! Nice information!
Are you going to try adding bushings to the aileron drives,To see if you can take out the slop?
"London street justice"
🤣
'London Street justice', just love it.
Another great Informative and humorous production, thank you for sharing.
Regards from the non winging Pom.
Would be good to check it in the air before making a video declaring fixes, this plane is full of surprises
Yes , you are correct. To call it a potential fix well and good, but unfortunately he didn't test it be report the results like you would have done.
Will you be doing a video about putting a pinned in hinge in if you do so please?
nice pickup Bruce
How about a small bulkhead (positioned at half length of the push rods) aout of plywood or plastic with small holes where the rods go through? This would almost eliminate any bowing the rods can do.
And didn't you use tape as hinges on other models? So no foam connection at all.
Why couldn't you brace the push rods? Won't you have the same problem once there is win load on them?
Bruce, Blenderm tape is your best bet for this type of hinge.
Bruce, add a motor safety switch to your mix!
Zohd good on you for sending bruce this now you can improve your model to be best on market send a recommendation out to your customers like horizon hobby just upload a recommendation to your web site to keep your customers happy .
Awesome video ✌️
How about a stiffer push rod also
One wonder why the Double Half sized Hinge didn't actually was used!! Keeping in mind that, this particular hinge don't have any type of resistance....
I cut all the way and put hinges..perform like a champion
That plea you made to manufactures it used to be called
QUALITY CONTROL
Also appears the push rod maybe made from too thin wire.
Excellent!
Isn't packing tape perfect for that sort of hinge?
I am sure one could figure out the aileron issue with a 3d printed solution. New brackets. Have a new rotating actuator stick through the bracket and have a throw arm screw on to the end of that (or friction fit with a square or star pattern)
double the existing pushrod with same size wire and heatshrink tubing : you will have a very light and rigid pushrod
Brilliant! I was thinking stiffer pushrods instead of weaker hinges, but I didn’t know how to achieve that without adding weight.
That would work, however the stiff elevator hinges still means the servo requires more power to operate and this stresses all components - servo, BEC and battery unnecessarily.
S & P Thompson. I agree with you, but I would be uncomfortable purposely weakening parts of my planes. Possibly a tape hinge is the solution
Brilliant, that's why you hire the genius. Right on Bruce.
1:19...Would it not also help (in addition to removing the stiff hinge load) by putting some appropriately sized rigid carbon fiber tube onto the bending push rods ??
London Street Justice...lol your great , thanks Man,, I got Tacos for you if you come fly with me in Sacramento
AHA!!! I was sitting here scratching my head, wondering what the h%&# is wrong with the elevators on my (several year old) Nano Talon, that will get it's first flight in a day or two. I have seen this video before, but I had forgotten about this problem that some of these models have. (My first Nano Talon did not have this problem). Anyway, thanks for the help. :)
I do not agree, the problem is not solved, maybe on the desktop, but not in reality. The speed wind will create resistance on the elevator and the pushrod will bend. So the real solution is open the model and support for the pushrod
This is a small control surface, there will not be enough pressure on the elevators to bow the pushrods -- but we will see during the test flight I guess.
It would at most be like some kind of reverse expo. The important thing is to remove the deadzone, which this fix should do. At small elevator input the forces won't be strong enough to bend the rods. It might bend them at the more extreme deflections of the elevators, but at least that is something you can fix with settings on your radio.
Seems to me the push rods are just too thin and would be a pain in the A to replace. Bad engineering to begin with.
Clearly you have no idea what Engineering is then.
Drone x pro ad before your vid, sigh youtube...
Yes. Please. Give Bruce pre production samples for assessment.
This summer is sooooo much colder than last summer..........I'm going to go burn some coal....
Wow they dont actually expect people to fly with the tail fins on the verge of popping out like that do they? Dont get me wrong, I love what Zohd are doing, but that looks sloppy even by my standards.
Clearly the push-rods being 1mm soft Chinese wire is not a good engineering decision. Not stiff enough basically, sliding hollow carbon rod over them could have been a fix...Price based decision. If you have a Giro Stabilizer, non slop controls are par for the course if you want it to work well. Id have cut the Elevators off and used proper wire hinged hinges, tedious to fit but friction free. The carbon torque rods also look very flimsy, progressive wear in the square drive and slop is almost certain.
Your fix was certainly an easy one, not sure its the best long term fix though.
🇳🇿😊
Been watching for years, never make a comment. But this is a load of balls wax and I take it there's no knife crime in New Zealand. This is my favourite channel but am disappointed
Please people, dont buy this product now that you know how to fix it. You are just rewarding the company for negative behavior.
Pull should be more reliable than push. Because there is no bending on pull.
That is only a false fix. Once flying, the air pressure on the surface will bring the problem back..
The whole thing is just horribly cheaply and badly designed.
John Doh agree! Hated this foam they used on this plane.
@@ChristopherF_1971 Just looking at how the control mechanism twists without the control surfaces moving would make me throw the thing away.
As others have commented even with this "fix" it's still bad design as oncoming air will also push on the control surfaces, again twisting the mechanism... which now adds air speed and degree of deflection to the equation of what these control surfaces are actually doing.
John Doh totally agree.. I had 2 of these models and both failed on me in flight because of these cheap push rods and servos. I’d never spend another $90 on these junk models and again the foam is horrible. Weakest foam I’ve ever seen. I’m aware it’s environmentally safe foam but damn it’s weak soft junk.
This looks like terrible advice to me. Especially as you haven't even tested it. Looks like You've just dramatically reduced the life of the model. Doing the job properly and fitting hinges would be a much safer way of doing it. But it still doesn't address the matter of the pushrods being too weak to perform their task.
Ok Boomer.