START HERE |
|
Register | FAQ | PM | Events | Groups | Blogs | Calendar | Mark Forums Read |
Unregistered
|
|
LinkBack | Thread Tools | Display Modes |
05-01-2017, 07:26 AM | #101 (permalink) | |
Registered Users
Join Date: Jun 2008
Location: Trondheim Norway
|
Quote:
Im a slow builder and allso have other helis to fly and service in adition to all the other stuff im doing, but it will get there. And to protect the radial bearings from gettingt threadlock on them in adition to put the grips as far in on the hub i can get i have greased the shilding surface of the bearings.
__________________
Logo 600SX Warp 360 Chase 360 Exo 500 |
|
Sponsored Links | |||
Advertisement |
|
05-01-2017, 12:28 PM | #102 (permalink) |
Registered Users
Join Date: Jun 2008
Location: Trondheim Norway
|
It have to be noted when over applying loctite liberally her, it comes with its own risks.
Not only could loctite get into the bearings but allso between the bearing and hub. On first attempt i got loctite between bearing and hub on the tail so i dissasembled everything and grease on the shiledingside of the bearing had a blue color on it so the grease did its job there. Now everything is cleaned and reassembled and i used a litle less loctite and greased the outside of the hub in adition to the bearing sides. It remides me a little of the first version of the tailhub assembly of the Logo 600SX with spacers that according to manual had to be greased inside befor putting the bolt holding the grip in place thrue it, a bolt that was going to have loctite on it.
__________________
Logo 600SX Warp 360 Chase 360 Exo 500 Last edited by Mr.Andersen; 05-01-2017 at 09:31 PM.. |
05-01-2017, 05:01 PM | #103 (permalink) |
Registered Users
Join Date: Oct 2010
|
Pre-flight checks
Is distressing to hear anytime one of our fellow pilots crashes but I'm encouraged by the amount of support that is appearing on this thread.
A long time ago a full size heli pilot told me "Heli's aren't made for flying, they are made for crashing." The discussion revolved around how complex heli systems are and the stersses that are put on them and that proper maintanence was absolutely required or you'd have real serious problems. I've learned to conduct a full pre-flight inspection before I fly a heli because you just don't know what came loose, moved a little bit or cracked on the previous flight. Even if you just landed and are swapping a new battery in you've got to pre-flight the heli again. My most recent experience was a swash ball that had started to back out after many flights and I caught it during an inspection. Had I flown that heli I'd be rebuilding it the next week. It only takes a few minutes but it's a practice that can save you lots of time and $$.
__________________
Scott KBDD Team Kasama Dune 600 |
05-03-2017, 11:10 AM | #104 (permalink) |
Registered Users
Join Date: Apr 2014
|
I used the stick Loctite on my eXo build. First time I've ever used it. Sure enough when I checked last night the screws that secure the blade grips were backing out. Checked several other screws and they were still fully tight, but didn't have that good *snap* when trying to loosen them. They just had a resistance when backing them out. It was a real pain but I removed every Loctited screw, cleaned everything with alcohol, and reinstalled using liquid Loctite. I threw the stick right in the trash and would never use it again.
__________________
Compass eXo - Rage 4219-1000kv - Scorpion Tribunus 120A - MKS & Xpert servos - Brain Compass Chronos (3-Blade) - Scorpion 5020-450kv - Scorpion Tribunus 200A - BK servos - Spirit Pro |
05-03-2017, 09:50 PM | #105 (permalink) |
Registered Users
Join Date: Dec 2006
|
I checked mine and replaced the stick with the liquid. No "break" to get the screw loose for me either. Dan
__________________
No-Team; Non-Rep, no-skill. Free advice worth every penny. |
06-23-2017, 12:02 PM | #106 (permalink) |
Registered Users
Join Date: Jun 2008
Location: Trondheim Norway
|
Had maiden on my Exo yesterday and awake and aware of the spindle bolts i cheked them after each flight.
Maiden was done slow and gentle to set tailgain so a few takeoffs and landings to adjust gain and some slow cirquet befor landing again. Timer was set for 2 1/2 minutes becouse its a 12S setup with small 1800mAh batteries and i dont know how long flight times i will get from it. Next flight i set the timer at 3 1/2 minuts and let it rip. Increadible fast and powerful heli and even if i did not run it highter then 2450 rpm headspeed it was the most powerfull heli i have flown and realy like how it fly and behave. However after second flight one of the spindle bolts had come loose when checking. I have a suspect how it may have happened. One of my grips did not turn smooth and the outer race of the thrust bearing was rubbing against the grips, nor hard but ruubbing. It is suppose to run free and i though it would just wear in but abviously it have started to turn the bolt when applying alot of cyclic. And yes it was that grip where the grip did not run free that came loose. Luckily the threadlock had still held the bolt in place but something have to be done here. My plan now is to use some old spindle bolts from a Logo 500 and shorten them down to fit the Exo hub and i will use loctite 270 aka red threadlock to hold the bolts. As there is only metal parts in the grips i dont see a problem of having to heat the bolt ore hub to get it out again. I have allso filed down the outer race of the thrust bearing with a diamond file to run free in the grips so no more rubbing. These is a to fun heli to fly to let it explode in the air from a backed out spindle bolt.
__________________
Logo 600SX Warp 360 Chase 360 Exo 500 Last edited by Mr.Andersen; 06-23-2017 at 04:38 PM.. |
06-23-2017, 04:20 PM | #107 (permalink) |
Registered Users
Join Date: Dec 2011
|
My spindle bolts are still tight after 64 flights so I must've done something right. I wouldn't hesitate to use red loctite though if they also had come loose.
__________________
Mini Protos, Voodoo 400, Protos 380, Protos Leggero 700 & 700X, Diabolo 700 |
06-23-2017, 04:42 PM | #108 (permalink) |
Registered Users
Join Date: Jun 2008
Location: Trondheim Norway
|
If bought your grips was turning free then most possible the culprit here was the outer race of the thrust bearing running to tight against the grip making the inner race of the outer radial bearing turn against the spindle washer and bolt when applying cyclic.
__________________
Logo 600SX Warp 360 Chase 360 Exo 500 |
06-26-2017, 11:35 AM | #109 (permalink) |
Registered Users
Join Date: Jun 2008
Location: Trondheim Norway
|
While i put the rotorhead of my Exo back on the heli yesterday i put a M4 nut on an M4 bolt with Loctite 270 to see how strong it was.
Today 24 hour later i forced the nut off and my normal go to hex driver did not get enough grip in my hand to force it apart. Had to put the bolt in a vice grip and use a spanner to get the nut off so i cant see how the bolts are going to get out by themself these time. Maybe i even have to cut the hub to get the grips off but its 12,40$ well spend to be secure the bolts dont back out.
__________________
Logo 600SX Warp 360 Chase 360 Exo 500 |
06-26-2017, 04:16 PM | #110 (permalink) |
Registered Users
Join Date: Jan 2009
Location: Michigan, slightly Northeast of Hell
|
The helicopter is extremely quick and powerful. I'm lowering my headspeeds. 2300 in idle 1 is just too much for me.
Scott
__________________
Spartan Vortex Inside,Team Scorpion KBDD Team Pilot ):> |
06-26-2017, 05:20 PM | #111 (permalink) |
Registered Users
Join Date: Jun 2008
Location: Trondheim Norway
|
What headspeeds are you flying at dunkonu23?
The second flight and the flight i realy flew it i had 2430 rpm and it was insane. So i hope the weather is good in the weekend as i can't fly until then and i hope Compass releeses a 18T pinion so i dont have to run 55% gov. Not that its an issue as i use a Kontronik ESC but higher governed will make the motor run more efissient.
__________________
Logo 600SX Warp 360 Chase 360 Exo 500 Last edited by Mr.Andersen; 06-27-2017 at 01:00 AM.. |
06-26-2017, 06:05 PM | #112 (permalink) | |
Registered Users
Join Date: Jan 2009
Location: Michigan, slightly Northeast of Hell
|
Quote:
Scott
__________________
Spartan Vortex Inside,Team Scorpion KBDD Team Pilot ):> |
|
06-26-2017, 11:49 PM | #113 (permalink) |
Registered Users
Thread Starter
Join Date: Feb 2008
|
I was using the pyro 600-09 for this heli. in my opinion its the perfect kv motor for those head speed keeping it around 80-85% on the esc. I had that pyro send in for a longer shaft for the exo
As mr mel calc, sweet spot is 2364 |
06-27-2017, 01:49 AM | #114 (permalink) |
Registered Users
Join Date: Jun 2008
Location: Trondheim Norway
|
Do the motorshaft have to be reacing thrue the support bearing when the pinion go thrue anyway
Mine don't but end up just above. But you are right about the KV konsidering the stock gearing.
__________________
Logo 600SX Warp 360 Chase 360 Exo 500 |
06-27-2017, 04:18 AM | #115 (permalink) | |
Registered Users
Join Date: Jan 2009
Location: Michigan, slightly Northeast of Hell
|
Quote:
Scott
__________________
Spartan Vortex Inside,Team Scorpion KBDD Team Pilot ):> |
|
06-27-2017, 06:59 AM | #116 (permalink) |
Registered Users
Join Date: Mar 2012
|
Scott, you should retach for sure. 2350 is the minimum headspeed I run on the EXO and with the 20t pinion and stock motor 2350 is a pretty low throttle output.
I say retach because I have confirmed my 2350 headspeed through 2 independent measurements and it is dead on and 2350 is quite low. The machine is almost dead silent unless it is side-in. Collective response is pretty muted. I am not a hardcore 3D guy. I like it smooth and fairly slow and I find the machine really wakes up at about 2450RPM or so. *Chronos*7HV Nitro*EXO*Warp 360* Compass Models Field Rep |
06-27-2017, 07:28 AM | #117 (permalink) | |
Registered Users
Join Date: Jan 2009
Location: Michigan, slightly Northeast of Hell
|
Quote:
Scott
__________________
Spartan Vortex Inside,Team Scorpion KBDD Team Pilot ):> |
|
06-27-2017, 11:15 AM | #118 (permalink) |
Registered Users
Join Date: Jun 2008
Location: Trondheim Norway
|
You should tune down agility ore cyclic roll rate to tame down cyclic and reduce collective to reduce lift.
It will tame down the heli. Reducing headspeed only reduce collective responce unless headspeed is so low cyclic can't respond to the commanded inputs.
__________________
Logo 600SX Warp 360 Chase 360 Exo 500 |
06-27-2017, 11:01 PM | #119 (permalink) |
Registered Users
Join Date: Jan 2006
|
I would respectfully disagree.
Lowering the headspeed does tame down a machine. It has to be done within reason, but it is another tuning tool, in addition to toning down agility, overall rates, and feed forward, and increasing gain, heavier blades, etc.
__________________
KBDD-Team Captain, JR DFA Team Pilot. Forza 450, Forza 600N, Forza 700, Compass 6HV-U, Warp, 7HV,Knight Pro,Knight 3D, Atom, Odin II, 6HV, 3D Plus, Knight 50, Chronos, Velos, Steam 550 and 600, OMP M2 (and anything else I can get my hands on...). |
06-28-2017, 06:12 AM | #120 (permalink) | |
Registered Users
Join Date: Jan 2009
Location: Michigan, slightly Northeast of Hell
|
Quote:
Scott
__________________
Spartan Vortex Inside,Team Scorpion KBDD Team Pilot ):> |
|
Thread Tools | |
Display Modes | |
|
|