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HelicopterScale Model RC Helicopters › AMA Nats-Team Scale-Sport Scale info
08-18-2014 10:59 PM  3 years agoPost 181
doorman

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Sherwood, Arkansas

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OUTSTANDING JOB!!!
Congrats on your win!!!

Understand completly, gotta go for the gold...I am pretty sure there was not a lot of luck involved...
Practice pays off!!

Stan

AMA 2918-Team Spin Blades,,Castle Creations, Unique Aircraft

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08-19-2014 11:19 PM  3 years agoPost 182
Rckfish

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Little Rock,AR

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good stuff Grim!

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08-21-2014 02:39 PM  3 years agoPost 183
Grimracer

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Eau Claire WI

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MD-369 Rebuid

OK.. I dont like to see a broken heli in the shop..so.

The mechanics are back together and now it’s time to rework the fuse. The vertical tail was blown off the machine so I started designing a new one.

Here is the Acad file. The parts flow inner to outer left to right. The light ply is the center spine.. there will be two of each of the main outer and two of the detail skins. The little dude on the right is a standoff. The little notch on the aft is for the light bracket and the angle slot on the bottom for the tail skid.

Now time to cut the parts. (laser)

Grim

Michael J Zaborowski

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08-21-2014 04:21 PM  3 years agoPost 184
CSpaced

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Oak Ridge, NC

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Nice job Mike, you've given me the itch to dig out my half built "approach" cobra and continue the build....

Chris Mulcahy
Team Futaba
Team KDE Direct

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08-21-2014 05:18 PM  3 years agoPost 185
Grimracer

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Eau Claire WI

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nice..and your a heck of a pilot
.. it aught to be awesome!

Grim

Michael J Zaborowski

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08-22-2014 12:55 PM  3 years agoPost 186
Grimracer

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Eau Claire WI

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building the virt tail.......

the old one was blown apart on the crash. Here you can see the new parts and the start of gluing them together.

I use lots of 123 blocks!

Michael J Zaborowski

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08-22-2014 01:03 PM  3 years agoPost 187
CSpacedrrNovice - Oak Ridge, NC - My Posts: All  Forum  Topic

Looking great, that was a quick turn around on the laser cutter!

Is the new one a little shorter than the original?

Chris Mulcahy
Team Futaba
Team KDE Direct

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08-22-2014 01:47 PM  3 years agoPost 188
Grimracer

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Eau Claire WI

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the new tail is one to one of the old.. the old tail was "Stretched" I the crash.. lol..

Laser cutter.. o yea.. we got one of those...lol

Grim

Michael J Zaborowski

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08-22-2014 01:56 PM  3 years agoPost 189
CSpaced

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Oak Ridge, NC

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Very cool, make sure you vacuum bag it

Chris Mulcahy
Team Futaba
Team KDE Direct

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08-22-2014 02:20 PM  3 years agoPost 190
doorman

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Sherwood, Arkansas

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Go Get'm
Looking good Michael!!!
Get that baby back in the air!!

Stan

AMA 2918-Team Spin Blades,,Castle Creations, Unique Aircraft

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08-22-2014 06:17 PM  3 years agoPost 191
Grimracer

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Eau Claire WI

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Thanks Champ..

I have to head to see my grandson this weekend but might get some work done on it tonight..

Last night I put the broken fuse in the tub and gave it a shower.. My wife was on the phone with her sister.. lol.. Ya something about showering his helicopter...

lol

grim

Michael J Zaborowski

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08-23-2014 01:42 AM  3 years agoPost 192
doorman

rrProfessor

Sherwood, Arkansas

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^^^^^^^

Bet that was a great phone call!!
Stan

AMA 2918-Team Spin Blades,,Castle Creations, Unique Aircraft

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08-23-2014 02:28 AM  3 years agoPost 193
Rckfish

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Little Rock,AR

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A man has got to do what a man has got to do!
Paul

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08-23-2014 03:05 AM  3 years agoPost 194
Grimracer

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Eau Claire WI

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yep... got more work done but no pics.

Hope to update some time Sunday..

Pop Pop has to spend time with Jakin this weekend.. he is a TRAIN NUT.. at just under 3 years old he wants to hang out in Pop Pops shop and see the boats, rockets, Trains and Helicopters. But most of all the BIG BLACK ENGINE.. he is a Steam Engine NUT..

update soon.

Grim

Michael J Zaborowski

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08-26-2014 11:17 PM  3 years agoPost 195
Grimracer

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Eau Claire WI

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update on the rebuild.

The fuse is getting some extra bracing and the tail fin is in first coats of primer.

Overall its going OK.. the breaks in the aft boom are going to be hardest to fix. Next will be stripping the paint...

Grim

Michael J Zaborowski

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08-27-2014 01:16 AM  3 years agoPost 196
Mojave

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Palos Verdes, Ca. USA

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Hey Mike, glad to see that you're getting this bad boy fixed up. IMHO, the split at the tail box end of the fuse is a fairly straight forward repair, just glass cloth inside the boom. The break at the fuse end of the tail boom can probably be easily fixed by bonding a section of FG or CF tube inside the fuse. That will make it like new, then you can just grind out the crack and fill it.
Barry

All helis and planes have an expiration date stamped on them...you only find it after you crash!!

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08-27-2014 01:36 AM  3 years agoPost 197
Grimracer

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Eau Claire WI

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yea.. I think I can make that work.. The biggest challenge for me is the use of Epoxy.. As a long time model builder I have built up a reaction to Epoxy.. so... its a huge challenge to repair using epoxy..(Lung issues. If it states use with adequate ventilation you better heed the warnings.. PLEASE) I do feel however I feel that maybe tech bond would be good. (I REALLY like Tech bond products)CAs don't bother me BUT.. again I don't use anymore with limited ventilation.

Thanks for the advise.. I will update as I can.

Grim

Michael J Zaborowski

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08-27-2014 03:17 AM  3 years agoPost 198
doorman

rrProfessor

Sherwood, Arkansas

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AeroPoxy
Michael, you might want to give the aeropoxy from BVM a try...
It is an epoxy, but does not have an odor!!! It is what the jet jocks and most scale heli builders like to use..from the looks of what you need to repair 1 tube would probably do the trick...I think they sell a starter kit wit the gun, mixing tubes, and one or two tubes of glue...really good stuff and it muxes itself in the tube, and you can run a vertical bead and it will not sag!!!
Just a thought!!!
Stan

AMA 2918-Team Spin Blades,,Castle Creations, Unique Aircraft

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08-27-2014 03:26 AM  3 years agoPost 199
Mojave

rrElite Veteran

Palos Verdes, Ca. USA

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X2^^^ Good stuff Hey Mike I have a similar issue as you, only I get a skin rash. I have worked with aerospace strength epoxies for 30+ years. I started getting bad rashes. The doc did a few tests and it turned out that I had developed an allergy to the amines in the epoxy. So now I wear rubber gloves when using it and I'm fine. Regular 5 minute epoxy doesn't bother me at all. My bud at work has to use a respirator when mixing and applying epoxies, so I know it's no joke...
Barry

All helis and planes have an expiration date stamped on them...you only find it after you crash!!

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08-27-2014 01:45 PM  3 years agoPost 200
Grimracer

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Eau Claire WI

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Understand..

Truth is I cannot even be around JB weld!. 5 min or any epoxy. Stan.. even tho it might not smell it can still gas off...

My lungs get VERY sore like somebody hit me in the center of the back with a ball bat. Very nasty.

I have a fresh air system and use it but still have to use it outside as the epoxy gassing off makes me sick.

I stick the turbine in the house and run the hose outside in the driveway..(I look like a space man and the locals must think I am nuts). the parts need to cure outside..

imagine that for even the smallest epoxy job.. IT SUCKS..

Please be careful out there.

I have however been experimenting with construction adhesives. Some are VERY good.. Build my BUSA D-7 with them.. very nice.. You can also see in the bracing of my 369 the ugly tan glue.. very strong and I can use it without getting sick.

Grim

Michael J Zaborowski

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