RunRyder RC
WATCH
 1 page 999 views POST REPLY
04-26-2009 08:35 PM  9 years agoPost 1
Ray Fernandez

rrElite Veteran

Guam (U.S.A.)

My Posts: All  Forum  Topic

Yesterday I was flying my Stratus around and after about 5 minutes, I noticed the canopy shaking. Brought the heli down only to find out that a couple of the canopy thumb screws fell off.

Does anyone have a good idea in trying to keep these screws on? I've had these things backed out before and hate having to go buy screws over and over again. There has to be some kind of way to prevent these from backing off. I surely do not want one of my expensive painted canopies to be damaged.

Ray Fernandez - GUAM

PM  EMAIL  GALLERY  Attn:RR  Quote
04-26-2009 08:41 PM  9 years agoPost 2
kcordell

rrElite Veteran

O Fallon, MO

My Posts: All  Forum  Topic

I put a short piece of fuel tubing over the screw. Kinda acts like a tension device.

Team Synergy/Rail, Team Scorpion, YS Engines, VelTye

PM  EMAIL  GALLERY  Attn:RR  Quote
04-26-2009 08:51 PM  9 years agoPost 3
airdodger

rrElite Veteran

Johnston USA

My Posts: All  Forum  Topic

Keep using loctite, it will buildup and supply enough resistance to keep them from backing out. I have used a set screw on the bolt but thats a little overkill. MA needs to use an undersize tap.

Chris

PM  EMAIL  GALLERY  Attn:RR  Quote
04-26-2009 08:56 PM  9 years agoPost 4
Ray Fernandez

rrElite Veteran

Guam (U.S.A.)

My Posts: All  Forum  Topic

I've actually tried the fuel tubing technique, which worked for awhile. I will try that again. Might also give the locktite advise a go.

Has anyone else noticed that it also takes sometime to get that canopy on? I was thinking about using the canopy stand off with a little knob at the end so you can just pop the canopy on quicker. Anyone try that?

Ray Fernandez - GUAM

PM  EMAIL  GALLERY  Attn:RR  Quote
04-26-2009 10:15 PM  9 years agoPost 5
A.J.

rrVeteran

Bethlehem, GA

My Posts: All  Forum  Topic

Same problem here. Only the last 2 times they fell out they trashed my paddles. First the stock white ones, then my new curtis paddles with 4 flights on them.

A.J.
i will be trying what is said on this forum too

Stratus 90, Synergy E6, Trex 450 Pro

PM  EMAIL  GALLERY  Attn:RR  Quote
04-26-2009 11:11 PM  9 years agoPost 6
JuanRodriguez

rrProfessor

The Villages, Florida

My Posts: All  Forum  Topic

As an alternative.....
to the fuel tubing, you can try installing a small "o-ring" on the screws.....

Same ideal as the fuel tubing but less "intrusive" as you don't see them ......

"In theory", once you tighten the screw, the o-ring compresses and the "tension" on the screw prevents it from working loose.....

PM  EMAIL  GALLERY  Attn:RR  Quote
04-27-2009 01:06 AM  9 years agoPost 7
jphilli

rrKey Veteran

Atlanta, Ga.

My Posts: All  Forum  Topic

I used to have problems with the old style flat head thumb screws coming out but with the newer hex bolt head I can get enough torque to keep those suckers from backing out. Something to notice though is that the canopy grommets are a little bit deceiving in that they make you think the screw is as tight as it can go however if you keep adding torque, you can get another 1/4-1/2 turn.

PM  EMAIL  Attn:RR  Quote
04-27-2009 01:12 AM  9 years agoPost 8
Ray Fernandez

rrElite Veteran

Guam (U.S.A.)

My Posts: All  Forum  Topic

I don't want to torque the screws in too tight. In the past I use to cut the canopy rubber grommets do that same thing of torquing.

Ray Fernandez - GUAM

PM  EMAIL  GALLERY  Attn:RR  Quote
04-27-2009 01:25 AM  9 years agoPost 9
jphilli

rrKey Veteran

Atlanta, Ga.

My Posts: All  Forum  Topic

Are you super gluing the grommets in? Torquing the bolts down should def. not break the grommets; the shoulder on the bolts should prevent this. However if the grommets are allowed to rotate in the canopy, you're guaranteed to cut them in half.

PM  EMAIL  Attn:RR  Quote
04-27-2009 01:49 AM  9 years agoPost 10
Ray Fernandez

rrElite Veteran

Guam (U.S.A.)

My Posts: All  Forum  Topic

Never really saw the need to CA the grommets down, especially on a newly painted canopy. Long ago, I tried gluing them on but somehow the CA seeped into the paint job and when I tried removing the excess, I ruined the paint.

Ray Fernandez - GUAM

PM  EMAIL  GALLERY  Attn:RR  Quote
04-27-2009 02:58 AM  9 years agoPost 11
jphilli

rrKey Veteran

Atlanta, Ga.

My Posts: All  Forum  Topic

Whenever I started gluing the grommets, I was able to tighten the thumb screws all the way down such that the screws wouldn't back out and the grommets wouldn't tear. This works because when you tighten the screw all the way down without glue, the grommet will rotate on the fiberglass and tear it rather quickly. With the glue though, the screw will rotate inside the grommet and since there is a nice smooth shoulder there's no way to tear the grommet. Also I never had a problem with the glue effecting paint but that's just me. If you have a beater canopy try this out and report back otherwise I don't want you to ruin a paint job.

PM  EMAIL  Attn:RR  Quote
04-27-2009 03:39 AM  9 years agoPost 12
Justin Stuart (RIP)

rrMaster

Plano, Texas

My Posts: All  Forum  Topic

Excalibur used ball links on the end of the canopy support struts instead of the screws. Here is the link:

http://runryder.com/t495830p1/

Avant RC
Scorpion Power Systems
Thunder Power RC
Kontronik Drives

PM  EMAIL  GALLERY  Attn:RR  Quote
04-27-2009 03:46 AM  9 years agoPost 13
Ray Fernandez

rrElite Veteran

Guam (U.S.A.)

My Posts: All  Forum  Topic

Thanks jrockstuart. I was thinking on the lines of this:

Ray Fernandez - GUAM

PM  EMAIL  GALLERY  Attn:RR  Quote
04-27-2009 04:35 AM  9 years agoPost 14
BJames111

rrElite Veteran

San Diego, California

My Posts: All  Forum  Topic

I tried not glueing the grommets once, and they wore out very quickly. I imagine it was vibration.

On the screws, I usally will just use a screwdriver or allen wrench, depending on what style you have...yeah it takes the convienience of "thumb screws" away, but it's better than embedding one in the leading edge of your blades.

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
04-27-2009 04:49 AM  9 years agoPost 15
jphilli

rrKey Veteran

Atlanta, Ga.

My Posts: All  Forum  Topic

I def. don't recommend using the ball links. MA uses those on the Razor probably because it's a smooth helicopter. The Stratus on the other hand is IC and has quite a few vibes as a result. The canopy will probably pop off pretty dang quick.

I speak from experience BTW as I tried this myself. I used thumb screws in the front and ball links on the back and even though there was a nice snug fit, I couldn't keep the canopy on in flight.

PM  EMAIL  Attn:RR  Quote
04-27-2009 05:01 AM  9 years agoPost 16
Justin Stuart (RIP)

rrMaster

Plano, Texas

My Posts: All  Forum  Topic

I have been hesitant to use ball links as well becaue I don't feel that the big canopies have sufficient rigidity to use a method such as this. That being said, Excalibur swears by it.

I think the real solution is some blue Loctite on the screws.

Avant RC
Scorpion Power Systems
Thunder Power RC
Kontronik Drives

PM  EMAIL  GALLERY  Attn:RR  Quote
04-27-2009 05:44 AM  9 years agoPost 17
Excalibur

rrKey Veteran

Destination: Earth

My Posts: All  Forum  Topic

I def. don't recommend using the ball links. MA uses those on the Razor probably because it's a smooth helicopter. The Stratus on the other hand is IC and has quite a few vibes as a result. The canopy will probably pop off pretty dang quick.
Actually, if you look at what I am doing in the above thread, it is no different than the mounting system used on the Century Predator Gasser to retain the canopy. The only difference is that they actually machined a custom head on the canopy mounting studs that allow the grommets to "pop" on to them. I never experienced any pop-offs or floppy canopies on my Predator using this system, even with the vibes from the gas engine. It looks like Ray is on the right track by purchasing these special canopy mounts from Century. I've also thought about doing that, but it was just easier to use the ball links on the Spectra-G.

I simply found an easy alternative that worked surprisingly well by utilizing MA0109 ball links that can thread directly to the canopy studs. It IS absolutely critical that you cut the grommet holes carefully to assure that there is enough tension to retain the grommets, however. Start small and gently file them out while stopping to test fit every so often. Gluing the grommets only on the inside edge is NOT an option, it's mandatory. Otherwise, the edge of the hole will cut them in half very quickly.

As always, you have to go with what you're comfortable with and what works for you. I've found a way to get the thumbscrews out of the picture altogether on the Spectra. It just never seemed like the best option to me, for the very reason's detailed in this thread.

Good luck and keep us posted. I'm interested to see how this turns out for other fliers. Feel free to drop me a PM if you have any questions.

Xcal

Camper Fuel: It's Not Just for Breakfast Anymore

PM  EMAIL  Attn:RR  Quote
04-27-2009 12:01 PM  9 years agoPost 18
Chuck Bole

rrElite Veteran

Tulsa Ok. U.S.A.

My Posts: All  Forum  Topic

I use the double ball stud on the rear canopy mount. The extra "ball"
that sticks out past the grommett gets a short piece of fuel tubing slid over it. You have to tug pretty good to get the tubing off, Never had one come off yet. On the front mount i use a synergy thumbscrew, It has a hex head so you can crank it down. I usually hot glue the grommetts from the inside.
chuck

Team Synergy Field Representative / Scorpion / Thunder Power

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
04-27-2009 11:10 PM  9 years agoPost 19
BisonFlyer

rrKey Veteran

Winter Garden, FL

My Posts: All  Forum  Topic

definitely glue the grommets in. If your canopy is cleared with decent clear, the CA shouldn't effect it. I've even used CA debonder to remove excess CA on the clear with zero effect on the clear coat.

I use a 2.5 and tighten the canopy nuts until they bottom out. That is how they were intended to be used. I've never used a single drop of loctite and i've never had one come loose if you tighten it until it bottoms out. Use the grommets from Radio Shack and they will last a lot longer than the MA ones.

Art Hughes
SAB Heli Division~Byron Fuels~Mikado V-Team~Scorpion~Pulse~Xpert Servo~Kontronik Drives

PM  EMAIL  GALLERY  Attn:RR  Quote
04-29-2009 02:23 AM  9 years agoPost 20
RobStump

rrNovice

Lake Saint Louis, Missouri

My Posts: All  Forum  Topic

Ray, I definitely have to second the "Don't Recommend" on the ball idea. Frankly I'm really surprised that the gasser hasn't let them go on one of the examples in this thread with all of the vibes. MA used to do the Extreme that way but if you do any amount of serious backwards inverted flight, oil from the muffler and engine just soak those grommets in a matter of seconds and then off the canopy comes. I Think I have a pic in my gallery of all the oil residue. The electrics and I guess the Gassers do much better because of the lack of oil residue from the muffler. To each his own just MO.

Personlly I don't CA the grommets in. I just use the little saucer screw driver with the extra wide tip to gently torque down the thumbscrews and have never had a problem.

~~~~~
RS

PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 1 page 999 views POST REPLY
 Print TOPIC  Make Suggestion 

 8  Topic Subscribe

Monday, December 17 - 6:54 pm - Copyright © 2000-2018 RunRyder   EMAILEnable Cookies

The RC discussion world needs to consolidate. RR is now one choice for that. Its software is cutting edge. It hosts on-topic advertising. Help RR increase traffic buy making suggestions, posting in RR's new areas (sites) and by spreading the word.

The RunRyder Difference

• Category system to allow Rep/Vendor postings.
• Classifieds with sold (hidden) category.
• Classifieds with separate view new.
• Answer PMs offsite via email reply.
• Member gallery photos with advanced scripting.
• Gallery photo viewer integrated into postings.
• Highly refined search with advanced back end.
• Hosts its own high end fast response servers.
• Hosts thousands of HD event coverage videos.
• Rewrote entire code base with latest technology.
• No off-topic (annoying) click bait advertising.
Login Here
 New Subscriptions 
 Buddies Online