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KRCM

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91
I use hot glue, it works well, especially on the balance charge leads.
As for connectors, I bought those little plastic servo lead locks from HK, they cost a few pennies and are great!

New subject: have you been able to find PolyCrylic in small cans? They want $23 for a quart here. Do you wipe both sides of a sheet at the same time? (remember my warping problem)
Reg


I used to use hot glue years ago but found that I was fooling myself. It did not really adhere well to the connectors (at least with the standard connectors and in a glow fuel environment where it is possible to get contamination from pulling the connectors apart and reinstalling them. Any of the 3 components in glow fuel will release the weak mechanical bond of glue to the connector and/or wiring. Also, the hot glue is rather inflexible to use as a strain relief, whereas RTV has flexibility. That is why it is often used in industrial settings. Before applying, I may wipe the connector and wiring with a paper towel that had been dampened with acetone, as that gets rid of any oils that may be present from manufacturing or previous handling. I sometimes do like to stick parallel servo wires together with the occasional tiny dab of hot glue, striving for neatness, or just to tack wiring to foam. 

Hot glue is wonderful, but not for everything, IMHO! (Flypaper might have given me a good swat for such a statement, eh!)

 I have a little collection of those servo locks but never seem to get around to using them. For something hidden, such as a servo extension connection inside of a wing, I tie some thread or dental floss across the connectors, between two of the wires of each part, sort of like wrapping a present. That way, the assembly will still thread easily through ribs, etc., without pulling apart.

For tiny assemblies, such as those little connectors and micro wire on a camera. you want something that really helps hold the connector and pins and wire together if there is stress applied. Hot glue doesn't do much for that. I like RTV, instead of messing around with shrink wrap on many connector/wire arrangements, even on the big LiPo and ESC stuff. It is an insulator, flexible strain relief and can prevent the pins themselves from disengaging on some types of connectors.

And, as you may have already suspected, Yes, I do own a major interest in the RTV company!

As for the polycrylic, I still have a smidgen left from the one and only 1 litre can I bought many years ago. It goes a looooong way when you dilute it at least 1:1 with water for my kind of work. Back then, it was not available at the Home Despot in any other sizes and other places I had checked did not carry it at all.  Not a huge investment, compared to most of the stuff we pour into this hobby, plus you can paint a table or something with it and impress your (much) better half - not that I would know from experience.
92
Plans, Projects, Building and Flying Tips / Re: Pipe Cleaners and RTV - say what?
« Last post by ganguy on April 04, 2018, 08:48:50 AM »
I use hot glue, it works well, especially on the balance charge leads.
As for connectors, I bought those little plastic servo lead locks from HK, they cost a few pennies and are great!

New subject: have you been able to find PolyCrylic in small cans? They want $23 for a quart here. Do you wipe both sides of a sheet at the same time? (remember my warping problem)
Reg
93
Plans, Projects, Building and Flying Tips / Pipe Cleaners and RTV - say what?
« Last post by Deerslayer on April 04, 2018, 07:50:29 AM »
I have had bad experience over many years with various connectors and their installed wiring. The pins may pull fullu or partially out or the wire may break at the pin, usually after significant use but sometimes right from the manufacturer.
This is a real problem with some FPV camera cabling, where they use extremely small connectors and wire and the assembly may well be subjected to constant buffeting by an airflow.

What I have been doing for some time, is to use some of the red RTV and force it into the end where the wires exit and out a little way onto and through the wire bundle. If you have trouble getting a neat looking job, just lick your finger tip and lightly smear the RTV, as it is a silicone and will smooth out without sticking to your finger.

After overnight drying, this makes an excellent strain relief. I also use further support for cabling, especially these really stiff yet delicate ones which may be exposed to handling and air turbulence.

I often use pipe short pieces of pipe cleaners, one end or the center of a short piece hot glued to a structure and the open end wrapped a turn or two around the cable(s). Easy to set up, looks neat, easy to undo and redo, if required. At $Tree, they have packages containing a lifetime supply (unless you are a pipe smoker, I suppose, but then you may have a shorter life anyway?). They are packaged in several colors, so you can even code certain wires or bundles if you wish. Also, these can be handy to code LiPos (Red = needs charging, 2 Reds = suspected bad cell, etc., Yellow = in storage, Green = good to go).
94
FPV at KRCM / Re: Flying Crash Mystery
« Last post by Wilf on March 31, 2018, 11:10:01 AM »
Here is a final update on the crash mystery.  Merrill Baker found both models within 30 feet of each other. The mini buckle was slightly damaged but the explorer fuse was destroyed.


The transmitter was returned from Horizon Hobbies.  They could find NOTHING wrong but changed out the RF module anyway hummmm. They also replaced a couple broken switches (which weren’t broken when shipped).  Since they could not find a problem, I am still nervous and switched to Graupner.
95
FPV at KRCM / Re: Good quality FPV video recording
« Last post by Deerslayer on March 28, 2018, 04:24:55 PM »
Good work, W.

This clearly demonstrates that, although one may record at the receiving end, there is a substantial loss of quality by doing so. Recording at source gets the best results.

The Mobius is an incredibly high quality HD camera, so there is some bias in comparing results with the onboard Foxeer camera. However, the loss during transmission is still the major factor, as we have seen when using the Mobius with video transmission and viewing on the ground.

What cannot be shown via your 2 videos is that there is some latency with the Mobius. You have  demonstrated that on another occasion.

As we know, it is common use a Mobius, GoPro or such for video recording and the other camera for flight control purpose.
96
FPV at KRCM / Good quality FPV video recording
« Last post by Wilf on March 28, 2018, 10:24:12 AM »
Here is a FPV flight as recorded by the Mobius camera built in SD card.  This camera is plugged into a docking station which transmits it via 5.8 Ghz to my goggles.  The image transmitted to my goggles is the image I use to fly the airplane and is recorded as received by the goggles.  The image captured by my goggles is quite adequate to fly with but the video recorded directly by the camera is at least 4 times better.
Here is a video showing what the camera itself sees.....

https://youtu.be/FIWVkyGBssU

Here is what I see to fly the plane after it has been sent through the transmitter and receiver and displayed in my goggles.

https://youtu.be/IWJyAB963Bo





97
Here is a quick little Youtube clip taken with my Mobius camera inside the KRCM club house showing some of the people who attended our club Chili Fest.


https://youtu.be/JkTYprQSj5A
98
Getting serious now, she's on her wheels, won't be long now.  ;D 8) :o

And a big thank you to master welder Harold, they're perfect buddy.  ;D ;D ;D ;D ;D
99

The following is from the RCGROUPS thread. John is one of the primary testers of Lemon products - he lives in Australia. The other key person lives near Ottawa. The designer (owner?) of Lemon lives in Vancouver. These are truly global products!

Here is John's note:

I just got an email from Lemon stating they are likely to soon have a telemetry capable StabilizerPLUS, and that it will most likely be 10 channels. There will be 5 header pins on both ends of the telemetry capable stabilizer PLUS to make it narrow. It may possibly be even narrower than the current stabilizer. For the new 10 channel telemetry capable StabilizerPLUS, they are are planning to add RPM sensing to the unit. At the same time they are also likely to have an RPM sensor for combustion engines as an optional accessory. Multiple satellites will be possible with dual satellite port on-board.


As always this is tentative and WWSIWWSI (We will see it when we see it).

It does sound like a product a lot of us have asked for though.

John


PS: Absolutely no idea of when or how much so don't bother asking me.
100
Plans, Projects, Building and Flying Tips / Re: Fokker DVIII Build (update)
« Last post by Deerslayer on March 14, 2018, 12:05:51 PM »
Very nice!  :D  :D

Unsolicited advice:

Make nice with Brad, there is a lot to be gained there. Wifey bought him a spiffy new trailer, and he has it all gussied up to carry big toys. His day job will be getting in the way of Fun Time as soon as the weather improves. So, get yourself a trailer hitch and grovel - he may take pity on you  ;D
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