nnDLG

nerdnic

nerdnic.com
Mentor
Nic, thanks for the reply. I have not started the build yet (fortunately it would seem). I'll just wait a few days until you release the next version of the plans. When you do release the plans could you also include some photographs? Thanks!

I cut my v5 wing last night so I will try to snap some photos!


Whelp, now I'm glad I got sidetracked and didn't get around to starting on the second wing... ;)

The original v4 seemed like it had way too much aluminum (aka unneeded weight), and whenever I got around to getting some my original plan was to swiss-cheese the crap out of it to make it lighter. I'm glad you addressed that so now I don't have to. :cool:

Can you do us all a big favor, though - would you mind adding in the second wing - in reverse - to your plans PDF? Or perhaps putting it on a second page? I would definitely appreciate the crap out of it.

Because I don't know how other people build their planes, but I always tape the drawing to the foam and use it like a template, cutting through the paper and completely destroying the plans in the process, so I end up needing two sheets of paper anyway. My office has a 36" plotter that I use to print out plans, and it's a giant PITA to 180* flip a PDF on my work computer.

You got it, I'll include both wings in the plans.
 

nerdnic

nerdnic.com
Mentor
That's looking incredibly promising Nic. I might build one as a launch trainer before I pick up an Azure

https://north-planes-model-company.myshopify.com/products/azure-1-5m-dlg

There look pretty sweet for the price, and they're Dr.Finn approved :D

It would work great for that. Using it as a trainer to learn DLG technique is definitely a cheaper way to go about getting into DLGs :)


So just to clarify the aluminum spar leinght and location, from the above image. The slot behind the servo is the spar ??

Hmm.... I wonder how this would preform with a V tail I'll guess I'll have to build it and find out .

Once again great stuff nerdnic

Yeah in the v5 images I posted yesterday the red slot aft of the servo is the alum spar. It's now only 10 inches, 5 on each wing. The rest of the wing will have a carbon arrow in it. I'll have to weigh my full length alum again but I would guess it's around 50g. Each carbon arrow is about 8g so it's a huge weight saver.
 

Mac82

Foam scraps? I got plenty
So 10in of aluminum spar and from their to almost the tip is arrow shaft.then should I slot the arrow shaft to allow the aluminum to rest partially in the arrow or should the arrow shafts completely come together at the wing root?
Thanks.
 

nerdnic

nerdnic.com
Mentor
I'm going to run it to the root. I should be able to build the wing tonight and grab some photos.

One thing I'm still testing is if I can embed the arrow into the wing and still get a decent foil. The arrow is 7mm tall so with the two sheets of foam on either side that gives you a constant camber thickness of about 16mm (4.5 +7 + 4.5). If I can sink the arrow into the bottom wing then that reduces the camber to about 11.5mm.
 

nerdnic

nerdnic.com
Mentor
I wanted to find a better material for the launch peg "patch". This patch sits inside the wing tip and prevents the peg from ripping out. I was using 2 liter bottle plastic in the past but this is heavy and not heat friendly. It was hard to install because it would start to curl under the heat of hot glue.

I've upgraded to laser printer overhead transparency film. This stuff is micro thin and 3 sheets doesn't even weigh a gram.

..oh and it can hold over 20 lbs!!

cFyvsZ8.jpg


AHbJbX7.jpg


This stuff is great because it doesn't deform from heat, is super strong, and weighs literally nothing.
 

ajsmcs

Junior Member
I cut my v5 wing last night so I will try to snap some photos!




You got it, I'll include both wings in the plans.

You rock, dude! I'm psyched to see you picking this up again, and can't wait to see how the new version turns out. I've been wanting to get into DLG, but it's not exactly easy to convince your wife you need another plane, and oh yeah it costs $500...XD
This seems like just the ticket.
 

nerdnic

nerdnic.com
Mentor
I love it! I'll say it again, too, look at all the first time posters! Three of you in just the last pages of this thread! Gives me a huge smile to see new guys engaging on this project.

Last night I started the v5 build. While building with the laser overhead transparency film I stumbled on what I think is a next big advancement for the DTF hobby. Using this stuff as a skin makes foam AS HARD AS A ROCK. I'm going to do some strength testing but no joke, this stuff makes foam feel like it's been glassed. I put down a bead of hot glue and used a scrape piece of foam to smear the glue flat. Then the film goes right on top. The end result is so impressively strong!!

Here are some photos that will help you guys until I get my build video shot. Just note that what you're gonna see may not be look exactly like the plans. I make changes on the fly while I'm building and then capture them in the plans. The steps are the same but some of the pieces might look different. Just FYI.

Start by getting your wings cut and beveled.
CyIi0rO.jpg


Glue your servos in. They sit embedded into the bottom wing. You'll need to pick out the foam where the 50% cut outline is. I'm using 5g servos here but you can use 9g also. Join your bottom wing and then add your alum.
pST0J8O.jpg


The gap left should be the same width as your arrow, 7mm.
syrx3AZ.jpg


Glue in your 24" arrow piece. This should be touching the alum. Lay your wing flat and then let your arrow run flat against your table also. Use a lot of glue here, all the way to the trailing edge. Let this sit for 5 minutes to fully harden.
LFSjGfX.jpg


Add your patch to the bottom wing of your throwing wing. If you're right handed this is your left wing, left handed = right wing. I'm using two layers of the laser overhead transparency. I'll be adding a 3rd layer on TOP of the completed wing.
QOQHmNL.jpg


Add your spar arrows. These are 22" long. One bead of glue down the wing is enough to hold them in place.
ZtGkRMe.jpg


ZlDneZZ.jpg


Now I did this step out of order so I don't have a picture. You need to add your 3" arrow piece that sticks out the leading edge. Glue it in like you did the main arrow.

Do your wing fold over. Glue leading edge, spar, servo, and where the paper ends at your trailing edge. So not all the way to the tip of the trailing edge, but just to the point where you start your bevel. I use a long ruler to help me keep the wing in place.
9n6VM6y.jpg


Do the same with your other wing and then glue the flap overlap down.
6jfzp7X.jpg


JdyYRSC.jpg


Glue down your wing tips and add your outside patch. Install peg.
A1rPylY.jpg


Build your nose.
tzmLBRO.jpg
 

Mac82

Foam scraps? I got plenty
Outstanding brother! That's about how I figured you'd setbup the wing I may have to take a break from my other build to get one of these into the air asap
 

Sky Pirate

New member
Thank you so much Nic! Now, about the nose.... :) How do the foam spacers go in? I'm going to try to pick up some arrow today. Thanks!
 

Mac82

Foam scraps? I got plenty
Good deal I'll be on the look out for that update.
I was wondering g that my self about the nose. It looks like their stacked and then sculpted .nic, I'm sure will clearify it for us later
 

nerdnic

nerdnic.com
Mentor
UPDATE

- First post updated with new photos and info
- Beta 5 plans added

Change log - 08.23.2016 @2:30 PM CST
Adjust nose
- Curve added to wing joint

Wing redesign (again)
- New wing tip, airfoil and peg location
- Alum reduced to 10" and additional CF arrows used

Removed rudder
- To save weight rudder has been dropped from the official design

Download beta plans HERE

Here is a link for the Laser overhead transparency film used in the build and 31" carbon fiber arrow from Walmart.
 

nerdnic

nerdnic.com
Mentor
Good deal I'll be on the look out for that update.
I was wondering g that my self about the nose. It looks like their stacked and then sculpted .nic, I'm sure will clearify it for us later

Yep this is correct. I just ran out of time last night and didn't get to make the nose cone. I will add photos of this process soon.
 

Mac82

Foam scraps? I got plenty
Minor editing note for all. The carbon spars and the tail boom are written as 2 x 24in( spar) and 24in on the boom the tail boom measures out 26 in.
Not a problem I didn't see it till this morning when I reviewed the plans and making sure I had everything ibneeded before I started cutting.
Thanks nic, I should be able to get it built today and in the air tommarow.
 

ajsmcs

Junior Member
UPDATE

- First post updated with new photos and info
- Beta 5 plans added

Change log - 08.23.2016 @2:30 PM CST
Adjust nose
- Curve added to wing joint

Wing redesign (again)
- New wing tip, airfoil and peg location
- Alum reduced to 10" and additional CF arrows used

Removed rudder
- To save weight rudder has been dropped from the official design

Download beta plans HERE

Here is a link for the Laser overhead transparency film used in the build and 31" carbon fiber arrow from Walmart.

Nic,

I'm not seeing the full size v5 plans in your Google Docs folder. Am I doing something wrong here, or is it just not up yet?

Thanks for taking the time to do all this. :cool:
 

ajsmcs

Junior Member
UPDATE: Well that's pretty weird. If I open it up on a different browser where I'm not logged into my Google Drive, I can see them. But when I am logged in, I can't. Strange
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That's bizarre. Are you clicking "Download Beta Plans" on his site? Because when I do, this is all that comes up - nnDLG Post.png
 
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nerdnic

nerdnic.com
Mentor
Minor editing note for all. The carbon spars and the tail boom are written as 2 x 24in( spar) and 24in on the boom the tail boom measures out 26 in.
Not a problem I didn't see it till this morning when I reviewed the plans and making sure I had everything ibneeded before I started cutting.
Thanks nic, I should be able to get it built today and in the air tommarow.

Thanks for catching that. I have updated the plans. The main boom actually is 24" though. The 2 wing spars are 22" and that's been corrected.
 

nerdnic

nerdnic.com
Mentor
UPDATE: Well that's pretty weird. If I open it up on a different browser where I'm not logged into my Google Drive, I can see them. But when I am logged in, I can't. Strange
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That's bizarre. Are you clicking "Download Beta Plans" on his site? Because when I do, this is all that comes up - View attachment 73744

Yeah that's weird. Some kind of caching issue I think.