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 Post subject: Re: The Notorious B.E.N. Flying/Building/Repairing Blog
PostPosted: Sun Apr 19, 2020 9:08 pm 
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Joined: Thu Aug 25, 2011 9:14 pm
Posts: 1990
Location: Bryan, TX
Cutouts in the cores for the servo boxes are mostly done. Just some trimming to do and I still need to cut down the boxes to the appropriate dimensions.


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 Post subject: Re: The Notorious B.E.N. Flying/Building/Repairing Blog
PostPosted: Mon Apr 20, 2020 8:53 pm 
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Location: Bryan, TX
The pilot who bought the Synergy 516 from me needed a higher kV motor so my XNOVA is sold. I will work on what's needed with the servo boxes hopefully tomorrow night.

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 Post subject: Re: The Notorious B.E.N. Flying/Building/Repairing Blog
PostPosted: Wed Apr 22, 2020 8:45 pm 
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Posts: 1990
Location: Bryan, TX
The repair to the DeJaVu wing commenced tonight. The trailing edge has come off and I'm not sure how. I also noticed that part of the wing skin in the very corner was not adhered to the core. So I lightly thinned some 30 minute epoxy, used a dropper to inject it, and clamped everything up. I'll see how this does and considering stripping off and replacing part of the trailing edge. I might just put some filler over this and cover it.


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 Post subject: Re: The Notorious B.E.N. Flying/Building/Repairing Blog
PostPosted: Tue May 05, 2020 8:42 pm 
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Joined: Thu Aug 25, 2011 9:14 pm
Posts: 1990
Location: Bryan, TX
I got back to work on the Cadence last night but was too busy today to go through the pictures. I started by setting the depth of my drywall bit to 24mm. I had some issue with the right stab cutout and now I'll need to use some filler on one side by my current measurements.

After that I worked on cutting down the servo boxes. I lined them up based on where the servo will sit on the lite ply cross plates. For now I just roughly cut off the bottom of the boxes with a razor saw and sanded them down the marks. So far, they look about where I want them depth wise.


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 Post subject: Re: The Notorious B.E.N. Flying/Building/Repairing Blog
PostPosted: Tue May 05, 2020 8:57 pm 
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Joined: Thu Aug 25, 2011 9:14 pm
Posts: 1990
Location: Bryan, TX
Tonight I started by checking how the servos fit in the boxes after being cut to size.

I then worked on cutting the channels in the cores for the elevator servo wires. I sharpened a piece of brass tubing with this and then marked where I wanted the channel to go with tape as a guide. Both channels were fairly easy and where I wanted them.

I also relooked at the gap I have to fill on the right stab. It's mostly on one side and I may just try putting a piece of 1/32" balsa in there. Or I may try to fill it with epoxy and milled fiberglass. I will think on it...

I also marked and cut the openings in the servo boxes for the servo wires. I will probably just take my Dremel with a sanding drum and make it nice and clean and open all the way.


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 Post subject: Re: The Notorious B.E.N. Flying/Building/Repairing Blog
PostPosted: Thu May 07, 2020 9:08 pm 
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Posts: 1990
Location: Bryan, TX
Trimming and sanding of the servo boxes prior to glueing them in. I left just a little extra balsa on them to ensure a good fit. I suppose I should also check the fit of the servos and make sure they are not sticking up too much...

I also opened up the holes for the servo wires to go into the cores.


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 Post subject: Re: The Notorious B.E.N. Flying/Building/Repairing Blog
PostPosted: Fri May 08, 2020 10:02 pm 
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Location: Bryan, TX
I went back to the wing repairs to the DeJaVu tonight. The sheeting seems pretty solid now that the thinned epoxy was fully cured. I got out the new balsa filler I bought and decided to try it for fixing the trailing edge. The container has a really nice storage seal that I'll try to get a picture of later. However, it was typically difficult to spread filler that seemed a bit dry. I didn't add any water and I got the filler into where the missing balsa trailing edge was. I let it cure and then sanded. I will say this filler seems to hold up better to sanding.



I'll work on getting some clear covering laid down on the wing where the clear pulled up and over this filler portion tomorrow and hopefully get out to the field to do some flying.


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 Post subject: Re: The Notorious B.E.N. Flying/Building/Repairing Blog
PostPosted: Sat May 09, 2020 10:43 am 
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Location: Bryan, TX
I didn't notice it last night but the reuseable seal for the filler also has a grab tab.

I got the covering applied to the wing this morning. I thought I had some clear but I was mistaken so white and yellow it was depeding upon what was near the areas that needed to be patched.


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 Post subject: Re: The Notorious B.E.N. Flying/Building/Repairing Blog
PostPosted: Sat May 09, 2020 9:32 pm 
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Posts: 1990
Location: Bryan, TX
The repairs to the DeJaVu held up with no problems through 6 flights today. I was also able to get through the 2020-21 Intemediate sequence once. It needs some work naturally but it's a start. Now that I have 3 flights on each of the 2 new 10S flight packs, I can have more time in the air in the future too.

I also took the 48" EF Yak and flew it 3 times.


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 Post subject: Re: The Notorious B.E.N. Flying/Building/Repairing Blog
PostPosted: Sun May 10, 2020 9:22 pm 
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Posts: 1990
Location: Bryan, TX
I didn't have too much time to work on RC stuff today with it being mother's day. I did cut a piece of 1/16" balsa to fill the extra space in the cutout for the servo box in the right stab. I also noticed I may have Dremeled the half circle for the servo wire on the wrong side of the box so I filled it in.

In my measurements, I also noticed that the servo on that side may sit about 1mm lower than the left. So I'm going to try gluing some balsa to the bottom of the right servo box to raise it up and then make sure everything measurement wise matches accordingly. I will take another look at where things are when the boxes are in the cutouts before I do more work that I just have to undo later on.


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