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Old Jan 22, 2012, 06:42 AM
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Excellent Job Herc as always!!! She came out stunning.
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Old Jan 22, 2012, 07:11 AM
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Quote:
Originally Posted by Azarr View Post
FWIW, I use dental floss in those positions to help stop breakout. Are the hinges top hinged foam like on the Telink Yak?

Azarr
How do you do this with dental floss? Do you cut a slit in the end end glue in a piece of floss? Or do you just glue it to the surface of the wing?
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Old Jan 22, 2012, 07:29 AM
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I've had dental floss pull out after a while. It works better than nothing but after a few good tugs or lots of use it will separate from the glue.

The best hinge preserving method I've found is to cut a 1" square piece of Blenderm tape and put a coating of welder's on the sticky side, then put that at the end of the hinge. The adhesive in Blenderm won't stick to EPP, hence the welder's.
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Old Jan 22, 2012, 07:37 AM
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Stop when it catches on fire! Hilarious! Looking forward to my little crack yak!

Craig
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Old Jan 22, 2012, 07:42 AM
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Great job Chris
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Old Jan 22, 2012, 08:01 AM
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Great job Chris. Thats a lot of work you put in to this. Looks like the build is quite differant than the edge build.
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Old Jan 22, 2012, 08:15 AM
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Awesome job. Way to get it done before first shipment u worked ur butt off
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Old Jan 22, 2012, 11:18 AM
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Quote:
Originally Posted by cwojcik View Post
I've had dental floss pull out after a while. It works better than nothing but after a few good tugs or lots of use it will separate from the glue.

The best hinge preserving method I've found is to cut a 1" square piece of Blenderm tape and put a coating of welder's on the sticky side, then put that at the end of the hinge. The adhesive in Blenderm won't stick to EPP, hence the welder's.
I have torn the welders hinges on my 3dhs foamies so many times that I now just use blenderm on top of the welders, stick fine on dried welders so I will do the same here on the corners
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Old Jan 22, 2012, 11:30 AM
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Quote:
Originally Posted by cwojcik View Post
I've had dental floss pull out after a while. It works better than nothing but after a few good tugs or lots of use it will separate from the glue.

The best hinge preserving method I've found is to cut a 1" square piece of Blenderm tape and put a coating of welder's on the sticky side, then put that at the end of the hinge. The adhesive in Blenderm won't stick to EPP, hence the welder's.
This has worked well for me as well, I had never heard of using dental floss and was curious how it worked.
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Old Jan 22, 2012, 12:05 PM
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You can just cut a thin strip of CA hinge and ad inlay it in the foam like we do on Telinks.

BTW, I just flew the Crack Yak production plane in my backyard and it is even better than the last prototype! Its been raining and windy all weekend but I could not resist a quick flight in the very confined and obstacle ridden yard.

I was curious to see if the added weight of paint and landing gear would change the plane. Specifically I was worried it would introduce coupling which was zero before. Well it did change the plane, for the better!! The added weight really did some good. This thing flies about as close as you can get with EPP to a competition indoor depron plane! I am totally stoked!!
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Old Jan 22, 2012, 01:06 PM
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Great build photos! Just a note that on my Windows machine, although the text adjusts to a variable width on IE and Chrome, on Firefox, the width needs a little bit more than 1920 pixels (my largest monitor).
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Old Jan 22, 2012, 03:05 PM
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Quote:
Originally Posted by hercdriver7777 View Post
Yes, they are pre hinged and hinged very well with a laser cutter but if you dig a control surface into the ground it will tear it out. That is unless you put a thin beat of Welders at the inner and outermost parts of the hinge line. Not required but a good idea.
Herc.... Do u have a close up shot showing where u lay the glue bead?
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Old Jan 22, 2012, 03:11 PM
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Quote:
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Herc.... Do u have a close up shot showing where u lay the glue bead?
http://static.rcgroups.net/forums/at...9-IMG_1097.jpg
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Old Jan 23, 2012, 08:12 AM
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C'mon herc, give us some video! I'm shakin' here!

Mine should be here today. All my equipment is ready, gonna fly it indoors this weekend and probably outside in the snow before then (I'm impatient, especially with foamies!).
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Old Jan 23, 2012, 08:25 AM
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Yeah come'on herc !


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