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warpspeed · 02-23-2008, 11:23 AM

Hardened steel, baby. Good for hammers, chisels, and big heavy things to drop on people.
Ought to work perfect on a little bitty helicopter.....

mk1spitfire · 02-23-2008, 11:39 AM

Quote:

Originally Posted by Finless

We can hope but I have a feeling we wont see that too soon.

Bob

That's dissapointing.

They hopefully will listen to you Bob representing the readers of helifreak.

Mk1

warpspeed · 02-23-2008, 12:10 PM

Bob's got to be twice the size of Andy-all he needs to do is threaten to drop the hammer and they'll be BEGGING for forgiveness!

Forgot to mention-If noise is a concern, (with steel gears) the answer is titanium nitride. You know, the stuff they coat fork legs with.
Self-lubricating, hard as diamonds. And comes in black to match the 500's bling!

Socal500 · 02-23-2008, 12:22 PM

Quote:

Originally Posted by warpspeed

Self-lubricating, hard as diamonds. And comes in black to match the 500's bling!

By itself that sounds wrong.

They have to consider cost. I dont think anybody here wants a $200 part because then you start having 90 size repair costs. Also I would rather they take the time and get it as close to right before release because you will always have the ones that want it rushed and then gripe that it came out to fast without adequate testing.

warpspeed · 02-23-2008, 12:43 PM

Well, I thought about saying "lubricates itself" but that was even worse!
Anyway I don't think TiNitride would be prohibitively expensive-if, as you say, they get their tolerances right the first time, but have to charge an extra $30 because of the coating, that's worth it right? Sure you'll still break tubes, but the gears would outlast the heli.

papa-alpha · 02-24-2008, 02:30 PM

Quote:

Originally Posted by fireup

Ok, I'll have one of these in my hand sometime next week to compare against the AC 50-1000V Voltage detector. This will give us a true reading of static charge.

http://www.aclstaticide.com/01/info_...d/300b_lit.pdf

Fireup,

After you get your static tester could you run the same tests with your Greenlee and see how well they correlate. It would be good to see if the $15 dollar tool is at least indicating the same thing that the $350-$400 meter is showing and not something totally meaningless.

Thanks,

Phil

DoctorAudio · 02-24-2008, 11:32 PM

I boiled my main gears and all plastic parts in static rinse stuff. I also dropped the belt in the water!
I let a pot full of water boil for 5 mins , then put a half of cup of static rinse in the hot water.
Placed all the parts in the hot water and let it soak and cool untill room tep was reached.
No static issues.
This way you make the gears runn smoother and does not build up any static.

I also moved the REC to the front, under a battery tray.

Captain Bart · 02-25-2008, 01:29 AM

All this talk about ESD got me thinking...so I grabbed a camera and tried to get a picture of something I deal with everyday up here in Deadhorse, AK. Perfect conditions for ESD up here, very cold(-25F) and dry. I get shocked all the time. The worst after laying down on the bed, then getting up and touching anything metal...in this case, the screw on the faceplate of a light switch (grounded good).

It took only 5 tries to get the spark on camera, I just set the timer on 2 seconds, then tried to get the timing right. You have to use knuckles so it doesn't hurt so much

I wonder how many volts this was?!? This one only looks to be about 1/4 inch, but I've seen them get as long as 1/2 inch long...quite a pop!

fireup · 02-25-2008, 01:59 AM

Nice. Can you try again with your tongue?

Astennu · 02-25-2008, 06:19 AM

Quote:

Originally Posted by BlackTitanium

The CF frame is grounded to the ESC negative wire at the motor mount.
You could then attach the tail boom ground wire to any part of the CF frame.
I prefer to mount the tail boom ground strap on the motor mount also.

Thanks for the pictures. Very nice mod. I will also be grounding the boom to the ESC and i'm gonna you the alu tail case. I need to sand the boom a bit for that.

But again thanks for the pictures

fogger · 02-25-2008, 10:41 AM

Quote:

Originally Posted by Captain Bart

I wonder how many volts this was?!? This one only looks to be about 1/4 inch, but I've seen them get as long as 1/2 inch long...quite a pop!

Quote:

Originally Posted by fogger

The dielectric strength of air is typically taken to be 3kV per mm, depending on humidity etc... So to get a spark through 1/4" of air you need about 9525V... I see sparks that long all the time when I get out of my car and touch the door to close it on a dry day, here in Phoenix...

-Fog

There you go

but that looks like more than 1/4" to me, maybe closer to 3/8" or even 1/2". At 3/8" it's 28.5kV, at 1/2" it's 38.1kV !

-Fog

mk1spitfire · 02-25-2008, 12:26 PM

Quote:

Originally Posted by fogger

There you go

but that looks like more than 1/4" to me, maybe closer to 3/8" or even 1/2". At 3/8" it's 28.5kV, at 1/2" it's 38.1kV !

-Fog

yes but how wide?

fogger · 02-25-2008, 03:06 PM

Not sure what you're asking, would you elaborate a little please?

-Fog

mk1spitfire · 02-26-2008, 06:19 AM

Quote:

Originally Posted by fogger

Not sure what you're asking, would you elaborate a little please?

-Fog

I was joshing, dude. You have have been quoting spark lengths at given high voltages and I implied if you had data for the width of the spark.!!!

fogger · 02-26-2008, 10:13 AM

oh, lol. I'd guess it's in the range of a few mills then

The ionized air path the electrons flow through is probably extremely small. But I really have no idea

-Fog

Finless · 02-26-2008, 12:49 PM

Socal500, Kevin, etc in the OC area.

Today should be a good day to test for static here. In the OC we are having DRY Santa Ana winds rolling in from the desert right now. Perfect static test conditions

Bob

Socal500 · 02-26-2008, 01:35 PM

Yes I noticed that. Im about tapped out on what testing I can do. I think fireup and that meter he has on order, or maybe in hand by now, is really going to be the next step in showing just how much static is actually there.

ChasHeliCop · 02-26-2008, 04:56 PM

Hey guys, I have information that possibly putting latex over the gears may neutralize the effect of the roller in a VDG. Does anyone know of a paintable latex material ? I know they make a liquid vinyl I think I have some of that, I will look to see what it's made from.

magicmalik19 · 02-26-2008, 05:02 PM

hey chas.. whats the need for boiling the stuff in the liquid if the grounding of the tail boom to frame gets rid of the brown out/esd problems?

ChasHeliCop · 02-26-2008, 05:07 PM

I don't boil my stuff in anything. I did read where someone had done that. I am doing the metal tail mod this week, and will shoot the video with the results. My goal and I think everyone else is to find the exact source of the static and eliminate the source, not to put a band-aid on it, like the static spray, that's only temporary.

Personally, I have not done the mod to the ESC, and I don't want to.

02-23-2008, 11:23 AM	#221 (permalink)
warpspeed Team Tostada Member Join Date: Dec 2006	Hardened steel, baby. Good for hammers, chisels, and big heavy things to drop on people. Ought to work perfect on a little bitty helicopter..... __________________ The name's Doug. I carry a gun 'cuz a cop is too heavy

02-23-2008, 12:10 PM	#223 (permalink)
warpspeed Team Tostada Member Join Date: Dec 2006	Bob's got to be twice the size of Andy-all he needs to do is threaten to drop the hammer and they'll be BEGGING for forgiveness! Forgot to mention-If noise is a concern, (with steel gears) the answer is titanium nitride. You know, the stuff they coat fork legs with. Self-lubricating, hard as diamonds. And comes in black to match the 500's bling! __________________ The name's Doug. I carry a gun 'cuz a cop is too heavy

02-23-2008, 12:43 PM	#225 (permalink)
warpspeed Team Tostada Member Join Date: Dec 2006	Well, I thought about saying "lubricates itself" but that was even worse! Anyway I don't think TiNitride would be prohibitively expensive-if, as you say, they get their tolerances right the first time, but have to charge an extra $30 because of the coating, that's worth it right? Sure you'll still break tubes, but the gears would outlast the heli. __________________ The name's Doug. I carry a gun 'cuz a cop is too heavy

02-24-2008, 11:32 PM	#227 (permalink)
DoctorAudio Registered Users My HF Map location Join Date: Sep 2006	I boiled my main gears and all plastic parts in static rinse stuff. I also dropped the belt in the water! I let a pot full of water boil for 5 mins , then put a half of cup of static rinse in the hot water. Placed all the parts in the hot water and let it soak and cool untill room tep was reached. No static issues. This way you make the gears runn smoother and does not build up any static. I also moved the REC to the front, under a battery tray. __________________ Will the real Elvan Wilson II, Please stand-up!

02-25-2008, 01:29 AM	#228 (permalink)
Captain Bart Join Date: Feb 2008	All this talk about ESD got me thinking...so I grabbed a camera and tried to get a picture of something I deal with everyday up here in Deadhorse, AK. Perfect conditions for ESD up here, very cold(-25F) and dry. I get shocked all the time. The worst after laying down on the bed, then getting up and touching anything metal...in this case, the screw on the faceplate of a light switch (grounded good). It took only 5 tries to get the spark on camera, I just set the timer on 2 seconds, then tried to get the timing right. You have to use knuckles so it doesn't hurt so much I wonder how many volts this was?!? This one only looks to be about 1/4 inch, but I've seen them get as long as 1/2 inch long...quite a pop! Attached Thumbnails

02-25-2008, 01:59 AM	#229 (permalink)
fireup Team Taco CEO Thread Starter Join Date: Oct 2006	Nice. Can you try again with your tongue? __________________ Kevin Don't Taco My Pack, Bro! , Why crash when you can POUND it!

02-25-2008, 03:06 PM	#233 (permalink)
fogger Registered Users My HF Map location Join Date: Jul 2006	Not sure what you're asking, would you elaborate a little please? -Fog __________________ This heli stuff is a pretty deep Rabbit hole, you just have to decide how deep you are willing to go...

02-26-2008, 10:13 AM	#235 (permalink)
fogger Registered Users My HF Map location Join Date: Jul 2006	oh, lol. I'd guess it's in the range of a few mills then The ionized air path the electrons flow through is probably extremely small. But I really have no idea -Fog __________________ This heli stuff is a pretty deep Rabbit hole, you just have to decide how deep you are willing to go...

02-26-2008, 12:49 PM	#236 (permalink)
Finless Team Taco VP My HF Map location Join Date: Nov 2005	Socal500, Kevin, etc in the OC area. Today should be a good day to test for static here. In the OC we are having DRY Santa Ana winds rolling in from the desert right now. Perfect static test conditions Bob __________________ "Don't Taco My Pack Dude!" NEW Video Link -> Safety Video #1 Video Link -> CAUTION using powerful tools! Video Link -> How to CRASH TWICE in one flight! Video Link -> Don't Taco!

02-26-2008, 01:35 PM	#237 (permalink)
Socal500 My HF Map location Join Date: Nov 2007	Yes I noticed that. Im about tapped out on what testing I can do. I think fireup and that meter he has on order, or maybe in hand by now, is really going to be the next step in showing just how much static is actually there. Last edited by Socal500; 02-26-2008 at 02:37 PM..

02-26-2008, 04:56 PM	#238 (permalink)
ChasHeliCop HF Support My HF Map location Join Date: May 2007	Hey guys, I have information that possibly putting latex over the gears may neutralize the effect of the roller in a VDG. Does anyone know of a paintable latex material ? I know they make a liquid vinyl I think I have some of that, I will look to see what it's made from. __________________ Sponsored by Visa/MasterCard / Team Budweiser / Trojan Field Rep Donut Connoisseur HELI-FREAK, You couldn't have picked a better place to land !

02-26-2008, 05:02 PM	#239 (permalink)
magicmalik19 Registered Users Join Date: Dec 2004	hey chas.. whats the need for boiling the stuff in the liquid if the grounding of the tail boom to frame gets rid of the brown out/esd problems? __________________ http://www.facebook.com/group.php?gid=2205103463#!/profile.php?id=8826230

02-26-2008, 05:07 PM	#240 (permalink)
ChasHeliCop HF Support My HF Map location Join Date: May 2007	I don't boil my stuff in anything. I did read where someone had done that. I am doing the metal tail mod this week, and will shoot the video with the results. My goal and I think everyone else is to find the exact source of the static and eliminate the source, not to put a band-aid on it, like the static spray, that's only temporary. Personally, I have not done the mod to the ESC, and I don't want to. __________________ Sponsored by Visa/MasterCard / Team Budweiser / Trojan Field Rep Donut Connoisseur HELI-FREAK, You couldn't have picked a better place to land !

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