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Post by rcdbutz on Aug 17, 2009 12:44:24 GMT -6
How you liking the DS520s all around Ern? I like mine alright, but they take some getting used to. They certainly make the heli react a lot faster than what I'm used to, making it a little harder to fly smoothly, but I'm kinda liking the speed. It might get me prepared for when I have to fly the 250 later this week.
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McKrackin
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Post by McKrackin on Aug 17, 2009 12:58:35 GMT -6
How you liking the DS520s all around Ern? I like mine alright, but they take some getting used to. They certainly make the heli react a lot faster than what I'm used to, making it a little harder to fly smoothly, but I'm kinda liking the speed. It might get me prepared for when I have to fly the 250 later this week. A little too fast for now.I'm considering the shortest hole in the servo horns.That's the way my last 500 was set up and had DS510's.
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McKrackin
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Post by McKrackin on Aug 21, 2009 16:21:17 GMT -6
The bearings are out on my brand new Scorpion 3026. Aaarrrrgghhh That was the cause of the first main gear to shred.It was sooooo hot it melted the gear just like it did the second one. Edit: The pinion gear is slipping on the pinion shaft cause heat.The set screw is broken off in the gear.Uhg!! I'll have to grind a flat in the shaft like I did with the 4025. The bearings may be OK. The barrel moves up and down just a little on the shaft. Elk,kent...Does your 3026 move any?
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Post by rcdbutz on Aug 21, 2009 17:57:29 GMT -6
So Ern, is this common to see issues with the Scorpion motors? I've got an extra Scorpion 120A ESC which I just got to replace the one that burnt up, but my 600 is already set with Align stuff. I was thinking about getting a 4025 for the 600 to use with the ESC, but the Align motor gives me as much power as I need right now.
Hmm, anyone interested in buying a Scorpion 120A ESC? Never used, $180 value...
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McKrackin
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Post by McKrackin on Aug 21, 2009 19:09:34 GMT -6
So Ern, is this common to see issues with the Scorpion motors? I've got an extra Scorpion 120A ESC which I just got to replace the one that burnt up, but my 600 is already set with Align stuff. I was thinking about getting a 4025 for the 600 to use with the ESC, but the Align motor gives me as much power as I need right now. Hmm, anyone interested in buying a Scorpion 120A ESC? Never used, $180 value... No.This is my first Scorpion to have issues and they were caused by the heat generated by the slipping pinion.When I picked it up the plastic from the main gear was dripping down into the bottom of the frame.lol..Seriously. Just took it up again with a third main gear and it was flying like a champ till the tail blade grip exploded. Talk about a bobbing tail.Try flying with one tail blade.lol... It was bobbing so badly that of course the tail hit the ground when it touched down and stripped the TT gears. The Flasher is a P.O.S. big time. I'll be ordering a new Align TT rear end complete as well as an Align rotor head.I'm sure it will explode as well. When the tail blew up it also clipped the servo link so I landed with one tail blade and no rudder control. Scary This is not a 3D capable heli without replacing all moving parts with Align stuff.Don't waste your money. No wonder the kit comes with a 12T pinion.Anything over 1500 rpm's and it will just blow itself to smithereens.
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akent
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Post by akent on Aug 21, 2009 19:12:28 GMT -6
I just looked at the 3026 in my 500 and it does have a tiny amount of up and down movement. Maybe 0.020" or so? Just a little click up and click down. Visible but barely with my old eyes. There is no lateral movement that I can feel.
Man that is weird that the thing would get that hot with a slipping pinion! Sure seems that it would fly funny with that much power being sucked up.
I bought some hardened steel pinions for this motor when I built the heli. I can't remember who from. You can really crank down on the grub screw. Mine has not budged, but I did put some red loctite on the shaft when I installed it, as well as blue loctite on the grub screw. It was a pain to change the pinion, when I went to the 12t and back to the 13t again. I did end up buying a pinion removal tool. That makes it easy. I'll bet it would remove your pinion even with a stuck grub.
RCD, I have hundreds of flights between my two Scorpions. I do have replacement bearings ($2 for the 2216 and $3 for the 3026), but I have not needed them, yet. I'm not sure you ever would, as long as you oil it like they recommend. ESC's are another issue. Those burn up if anything at all is wrong. All brands that I know of have zero overcurrent protection. I have threatened to design a bulletproof ESC. Someday when I get enough time, I'll do that. It is difficult to do, and adds to the cost. That's probably why noone is willing to do that. They just live with the failures under warranty. They don't have to rebuild a crashed model. Best, Kent
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Post by akent on Aug 21, 2009 19:20:27 GMT -6
Mckrackin, the tail blade holder letting loose also happened to my Exi 500!!!!!!!!!!!!!!!!!! It was like BUZZZZ----BOOM. Mine went beyond control. You're a better pilot than I am with that.
Turns out the tail feathering screws were NOT loctited!!! This happened fairly early on with mine. You should be able to tell if the tail part where the holder let loose has full threads in there. Arrgghh!! Give me a dam kit anyday where I can build the thing myself. I will NEVER again trust anything assembled by anyone with a new heli! After that blade holder let go, I then took apart the whole rest of the 500 that I didn't do originally. There were several other screws that were not loctited as well. You talk about annoying! Kent
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McKrackin
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Post by McKrackin on Aug 21, 2009 19:39:08 GMT -6
The bolt is broken off inside the spindle. It also slung the blade up through the main rotor disc and blew a hole in one of my new Align CF's. Luckily,I received a new pair today from Helihobby since the first ones had a cosmetic flaw. They want the first ones back though. I told them they were nicked up.That's still true I guess.lol ;D
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Post by elkmaster01 on Aug 21, 2009 19:46:33 GMT -6
WOW,,,,,,when I decided to build a 500,,I agonized over what kit to buy. I liked my Flasher 450 but I could tell it wasn't 'Align' quality. I almost bought the EXI since Kent was flying good. But I found a good deal on a 500 ESP and since doing my 600,,I knew it would be quality. I'm soooo glad I did.
I checked my motor/pinion,,,,no problems here. I got the SS Screw kit and replaced most of my hardware on it. I just put the Align 520 servos on the cyclic too. These Futubas are just too fragile and I suspect not strong enough for the cyclic. I set up head from scratch. In Stnt 2 I have +/- 12 degrees. My cyclic throws are 9 degrees aileron and 10 degrees elevator.
It's raining today so I have to wait for the test flight,,but I've done everything I know to make this bird fast and quick.
Ernie,,,,,man,,, you are snake-bit on that Flasher. Valiant effort,,but in hindsite,,,you'd have been better off getting another ESP. Sounds like that's exactly what you'll have shortly,,,a few more Align parts! I feel your pain dude. I'm in the same boat with my Flasher 450,,,,one thing after another. I shelved it for now,,,concentrating on the 500!
Hang in there!!
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Post by akent on Aug 21, 2009 19:47:47 GMT -6
TOO FAST HEADSPEED, or crappy quality tail feathering bolt, me thinks!! That SUX!!!!!!!!!!!!
If the headspeed was not too high, then crappy bolts. Ugh. There is no excuse for crappy bolts in critical areas.
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McKrackin
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Post by McKrackin on Aug 21, 2009 19:56:53 GMT -6
Yeah Elk,my next order will only leave the GF frame sides and skids as non-Align stuff. But just think of the money I saved.I only have $400 in upgrades so far.lol.....
Kent,it is a very high headspeed.In the 3000 ball park but nothing different from my ESP kits.It should be up to it and it just isn't.
Thanks for looking at your 3026 for me.Sounds the same here.I have 0.019 inch play up and down and just a little metallic dust around the pinion.No sideward movement yet and no tell-tale scream either ;D
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Post by akent on Aug 21, 2009 20:15:21 GMT -6
I'm running 3k in idle 2 now, too, but not real often. My idle 1 is 2700, which flies great other than 3d. No issues, and it's somewhat Exi still, other than the list that you know so well! Align gears, shafts, bearings (when they break or go bad).
I do have a complete Align ESP CNC head and a new Align TT tail just waiting, though!! This stuff is REALLY smooth with zero slop. Far more than the Exi is, or ever was. I just want to save this stuff for later, once I can really fly well.
The Exi stuff is still trucking along, and it feels good in the air.
It's interesting how cheesy the tail housing looks on the Align TT. No wonder it blows up if you look at it wrong. I do know that it will be more fragile than the Exi belt setup, and I will lose the all metal connection in the tail from the all plastic front pieces. Static? I hate static. Kent
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Post by elkmaster01 on Aug 21, 2009 20:40:19 GMT -6
Kent,,,I'm set up the same way, ,,,I get 3120 headspeed at 100% so I set up Stnt 1 at 90% and get 2800,,,thats where I do most my flying. I may drop a tooth and see how it does.
I use a silicone spray on all my TT stuff,,gears,,,,,no problem with static here!
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Post by akent on Aug 21, 2009 20:55:31 GMT -6
Awesome, Elk!! I also use silicone spray with the belt stuff. I didn't even think about using that with the TT. That's good to know! Thanks!
If you drop a tooth, you will see (if like me) around a 200 rpm drop minimum.
My 12t 100% was 2700-2800. My 13t 100% is 3000 +200, depending on battery levels. Kent
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Post by 19000rpm on Aug 26, 2009 5:41:52 GMT -6
Must be the month for tail feathering screws coming loose. I had just landed the BH with the sonix tail and, BANG, one blade and holder came flying off. Glad it happened on the ground. Funny thing was, I had just checked every screw on the heli... except that one. Happy landings
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