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HomeScaleAircraftHelicopterScale Model RC Helicopters › Trex 700 Lama
11-01-2016 08:47 PM  21 months agoPost 21
chopper37

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NJ and Long Island

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Coming along nicely, only 56 here but it was a great day to get some flying in

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11-01-2016 10:49 PM  21 months agoPost 22
Grimracer

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Eau Claire WI

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Peter.. thanks for doing this build tread.. and awesome to have family involved.

O yea... make sure he gets a few blisters from turning a wrench.. Working with grampa and the memories will last a life time.

Grim

Michael J Zaborowski

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11-02-2016 09:58 PM  21 months agoPost 23
Peter WalesrrElite Veteran - Orlando Fl - My Posts: All  Forum  Topic

My pleasure Mike. I thought it was about time I contributed something rather than just lurking and most of my builds are too unique to be of much use to anyone. This one may interest some potential purchasers of this model.

Anyway, on with the show

Vario have entered the laser cut wood era, and have a lot to learn it seems. The wood supplied was 1/4" thick and had been cut with a fine laser beam with several passes. I guess that from the fact that the cut was very narrow and there was little or no external burning. This meant that the tabs were very difficult to see, the back was not completely cut and the slot was too small for a knife blade. Some of the tabs were on curved corners which made it even more difficult to cut the wood out.

I compromised by chopping a utility knife blade into several pieces which I held with a pair of vice grips, and then I whacked them through where I thought the tabs were with a small hammer. After a couple of hours I managed to get all the pieces out. I assembled it all dry and then took it apart and glued it together with Evo stick white PVA wood glue.

The uncoated tubes on the chassis are supposed to slide in to some aluminum tubes mounted in the woodwork and there is a hole in the front cross member to locate the aluminum tubes. Unfortunately it's in the wrong place

As you can see, the tubes need to be along the side of the wood

But the hole is in the middle. So, tomorrow I get to do some filing and fettling to make it all fit before gluing the wood work into the cabin.

Peter Wales
http://scalehelicopters.org

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11-02-2016 10:12 PM  21 months agoPost 24
chopper37

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NJ and Long Island

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Looks like in the assy man the alum tubes sit on top of the wood? Not sure if this helps but.

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11-02-2016 10:54 PM  21 months agoPost 25
MXCobra

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Petoskey, MI

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I found fitting the wood assembly to the canopy very frustrating and required considerable work to make it fit and align properly. I finally gave up and went my own way!

Rick

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11-02-2016 11:28 PM  21 months agoPost 26
payne1967

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uk

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Ii think your telling porkies

that a set of Vario woodwork fits that well

www.alcesterhelicopterclub.bmfa.org

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11-03-2016 03:25 AM  21 months agoPost 27
Peter Wales

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Orlando Fl

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I'll take another look at it tomorrow. As usual, the Vario manual is not exactly clear but I'll check all of the pictures to see if there are more clues. Thanks for the heads up on that one.

Rick, you certainly did go your own way, and I am not surprised. I may end up joining you, but I will give it a try. I am going to fit the chassis to the mechanics before trying to get it into the cabin. I am not going to fit the top cabin mount on top of the servo until I have the bottom mount sorted.

Peter Wales
http://scalehelicopters.org

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11-03-2016 11:59 AM  21 months agoPost 28
Notar

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Taxachussetts

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The secondary tubes which the tubes on the frame slide into go on the inside of the top of those formers similar to what Rick did.

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11-03-2016 04:06 PM  21 months agoPost 29
Peter Wales

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Orlando Fl

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Boy, what a mess this is. If you leave the inner uprights in place, they hit the servo wheels, so they gotta go. They don't mount on the cabin anywhere so I don't see much need for them and I haven't even looked at fitting the magnets and top servo support mount yet.

Maybe I will have to copy Ricks method and cut the whole flaming lot out, but I'll have a go at keeping some of it.

Let battle commence

Peter Wales
http://scalehelicopters.org

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11-03-2016 04:16 PM  21 months agoPost 30
Phoenix NOTAR

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Tallahassee, Florida USA

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Peter,

Maybe these images of the Vario T-Rex Lama I am flying will help you.

Sandy

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11-03-2016 10:30 PM  21 months agoPost 31
Peter WalesrrElite Veteran - Orlando Fl - My Posts: All  Forum  Topic

The tube does not go in the middle but on the top. This lowers the cabin down some and then problem after problem began to rear their ugly heads. First, the cabin could not go back far enough as the inner uprights hit the servo wheels. The uprights got cut off. They seemed to serve no purpose anyway as they were in the middle of the cut out so could not be glued to the cabin.

Then came the problem of being able to slide the cabin in and out easily. Now it was lower, the bulge for the landing gear cross member fouled the flat of the cabin floor so sanding was needed to raise the cabin up to clear it. About 1/4" was taken off the wooden chassis.

Then the back part did not line up properly with the curve at the top of the cabin on either side, and so it went on. 2 hours of sanding finally got the cabin to where I could get it in and out, I hope! Its difficult to tell when everything is loose.

So I glued the tubes into the cabin, let them set and then tacked the chassis to the cabin. Tomorrow, when the PFM has set, I will know whether I got it right or not. The good thing about PFM glue is that you can get it apart if you want to, but if you don't want it to come apart, it won't.

Peter Wales
http://scalehelicopters.org

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11-03-2016 10:31 PM  21 months agoPost 32
Peter Wales

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Orlando Fl

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Sandy,
As you used the DFC head, your aileron servos are in a different position to mine, but thanks anyway

Peter Wales
http://scalehelicopters.org

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11-03-2016 11:39 PM  21 months agoPost 33
chopper37

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NJ and Long Island

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Wow sorry to hear about the difficulties with the canopy and woodwork, hopefully when glue dries it's all good.

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11-05-2016 10:35 PM  21 months agoPost 34
Peter WalesrrElite Veteran - Orlando Fl - My Posts: All  Forum  Topic

It seems I got that bit right. The cabin comes off fairly easily and snaps back into place. Now I have fitted the top magnets, added the horseshoe woodwork under the floor and fitted the floor but not screwed it down yet. Only Vario could supply the floor as an "extra" and charge you for it!

The electronics have been fitted with the receiver and gyro under the battery and the ESC above. The wiring needs a bit of sorting out to make it a bit more practical. The Rx battery is under the chassis, on top of the lattice base.

The side "fuel tanks" have been shaped and fitted. I love the way the instructions say slide them between the lattice and the mechanics from underneath. I'd like to see someone from Vario do that!

Then I took it outside in a stiff breeze and gave it a test hover. It flew! A good day

Peter Wales
http://scalehelicopters.org

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11-05-2016 11:52 PM  21 months agoPost 35
chopper37

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NJ and Long Island

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A good day it seems! glad you have it all worked out and thank you for doing a build thread on this kit I'm sure there will be more to tackle this kit.

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11-06-2016 12:56 AM  21 months agoPost 36
payne1967

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uk

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it is good to read a truthful build thread
thank you Peter
maybe one day Vario will produce a kit that builds up from the box
without major re-working

www.alcesterhelicopterclub.bmfa.org

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11-06-2016 01:12 AM  21 months agoPost 37
chopper37

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NJ and Long Island

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it is good to read a truthful build thread
thank you Peter
maybe one day Vario will produce a kit that builds up from the box
without major re-working
+1

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11-08-2016 08:56 PM  21 months agoPost 38
Peter WalesrrElite Veteran - Orlando Fl - My Posts: All  Forum  Topic

Yesterday I spent the day fitting the windows and doors. Once again Vario pulls a fast one. You get nice doors, but if you want them to open you have to buy the Alouette 2 fitting kit.

And today, I took it all apart and sanded the parts to be painted with 600 grit wet and dry, dunked in clean water. Then it was off to the spray booth

Now I am going to let it dry completely and then another wet sanding before clear coat tomorrow.

Peter Wales
http://scalehelicopters.org

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11-08-2016 09:07 PM  21 months agoPost 39
chopper37

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NJ and Long Island

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Looks great, easy to see color choice cant wait to see it finished and your nephew flying it. Do you have a part # for the door fittings set.

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11-08-2016 09:13 PM  21 months agoPost 40
Grimracer

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Eau Claire WI

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Tell us a little more about the PFM glue. I have not used it before and its not cheap.. BUT.. if its the best then the cost is a non issue.

So you know.. I cannot easily use epoxy as I am sensitive to it. I have to suit up and do it outside.. (that don't happen in Wisconsin this time of the year.. or for the coming months..)

Thanks

Grim

Michael J Zaborowski

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