Blade Balancing + Glow Paint - RCCanada - Canada Radio Controlled Hobby Forum
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Old 04-08-2008, 01:19 PM   #1
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Blade Balancing + Glow Paint

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If I wanted to put glowing elements on the blades of the helicopter but don't want to have to dig a channelt through wood blades for LEDs, cells, and wires (which you can't even do with carbon blades anyways), would adding little patches of glow-in-the-dark paint be any help at all? I'm not sure if it'd be very bright or how long it would last.

I am also not sure if the paint might throw off the balance of the blades (do you balance helicopter blades? I am not sure how you would go about balancing carbon blades).
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Old 04-08-2008, 05:15 PM   #2
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Don't mess with trying to build your own night blades, too much stuff to go wrong and very dangeroue.
Glow will put the blades out of balance and won't be very bright.
Spend the money and get factory made night blades, much safer.
Also you should always balance your blades, even new ones.
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Old 04-08-2008, 06:08 PM   #3
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I would, but I can't seem to find any for the T-Rex 500. I can only seem to find LED sets for Walkera. Maybe I am looking in the wrong place?
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Old 04-09-2008, 02:00 AM   #4
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If you are thinking of building your own night blades you might want to read this thread.
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Old 04-09-2008, 04:53 PM   #5
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Remove the covering from the blade and CA thin motor winding wire under the bottom. I didn't even make a wire channel in the blade. I just tacked the wire at different spots along the span so they could flex with blade bending during flight. I glued tiny LED toys from the 'dollar store' into the blade tips very carefully after making a recess in the blade tip hardwood. I removed from the toy's body the tip part which was very small and light.The toys had a button for random flashing of 3 leds of different colors or sequencial flashing and on/off switch function. It looked like a UFO in flight. The battery (watch lithium) was glued to the inboard trailing edge pocket permanently with epoxy after the wires were soldered on. After assembly the blade was covered in airplane ultracote covering. Blade tips and roots were painted first to seal out fuel. Like any project you have to know what you are doing to be safe. If you don't then buy the good stuff. You should also test the blades in private at rpm. Do not weaken the blade structure, however wires can be surface imbedded into the soft trailing edge balsa then secured with CA. You also have to balance the blades after the covering job. Before night blades were marketed this is how it was done. Some clever individuals modified carbon NHPs for LEDs running wires through the foam core and drilling surface holes for LEDs. Here's another link.

Like any project you have to know what you are doing to be safe. If you don't or have any question on the modification not withstanding applied forces then buy the good stuff. Below is what I did several years back. Hey, that looks like Colin's trike

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Old 04-09-2008, 07:07 PM   #6
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Old 04-09-2008, 07:12 PM   #7
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Originally Posted by Colin
It could be worse... I could be driving your pink bike in the background
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Old 04-13-2008, 10:10 AM   #8
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check out theyve got quite a long thread in the blades section on building your own night blades. They use copper tape along the blade with leds soldered at various points with a lipo shrink wrapped onto the root.

I think its a pretty good idea all in all. Your choices for night blades on a 600 machine are slim... youve got the flexible ms composits, the align night blades (lets hope its not the variable weight edition) and the rotortechs which are about $220, plus a $50 charger. If you have the money i think rotortech might make a 425 night blade, you'd have to look on their website, but other than that there really isnt a problem with following the tutorials on rr to make your own. Just test everythign first.
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