Tundra RC from scratch

[cdfigueredo]

What's the trouble with the lights?
I put lights in my bushwhacker, so maybe I can help!

I have 15 LEDs to place in the plane. but i can;t figure out how to conect them. I opened a new threat asking for help... this is the link https://forum.flitetest.com/index.php?threads/please-help-with-led-power-consumption.62081/
maybe u can help me

 

[cdfigueredo]

Hey, guys, sorry to slow things down. I've really been a little down after I made the mistake of misconnecting the LEDs on the wings. I still haven't lost hope, there are many people helping me to find the best solution for my screw-up.
But as there is not much else to do, I have decided to continue building while some acceptable solution for the connection of the lights appears.

The center sing section is ready to be covered. I made a simple system to attach the wings using 2 screws and 2 barbecue sticks.


I added some pieces of plastic to avoid damage the wing while tigthing the screws.


Maybe ypu can't see it but there are two pieces of wood holding the nuts where the wing screws will be screwed


See the holes where the barbecue sticks fit (maybe i will need to reinforce this using some plastics)


That's it. we are now 401g... not bad. I think at the end it will be under 450g


I will cover the central section of the wings and will work on the control surfaces, servos and pushrods. If everything goes well, will be working on the wing struts.

 

[cdfigueredo]

This is what i am planing to do for the wing struts. I am pretty convinced it will work well and will be strong enough. I think this will be easier to attach/deattach than using screws. The plastic pieces will be glued with ciano to the struts.
The other end of the strut will be the same thing but attatched to the fuselaje.
What do u think???

 

[Grifflyer]

This is what i am planing to do for the wing struts. I am pretty convinced it will work well and will be strong enough. I think this will be easier to attach/deattach than using screws. The plastic pieces will be glued with ciano to the struts.
The other end of the strut will be the same thing but attatched to the fuselaje.
What do u think???
View attachment 158687

That looks like it will work, these are more for astetics less for function?

 

[cdfigueredo]

That looks like it will work, these are more for astetics less for function?

I made a very big mistake. I trusted the hardness of the covered depron and it was wrong. . The wing rod has weakened right at the junction with the central section. I need the struts to prevent the wing from bending upwards. Therefore they need to be functional. If someone tries to build the tundra and uses some kind of reinforcement for the wings, the struts can be decorative.
I hope that the situation of my loose wings will improve by covering the central section, as the weakening occurred in this part.

 

[Grifflyer]

Do you have a hard mount in the wing to attach the bbq skewer to? Or are you going to make one?

 

[cdfigueredo]

Do you have a hard mount in the wing to attach the bbq skewer to? Or are you going to make one?

yes, i made it from 3layers of covered depron on each wing. There is a hole on the other side, but i can't find a good picture of it. it is 2.5 cm height, should be enough for holding the barbacue stick with hot glue.

 

[Grifflyer]

Ok cool that'll work, how do you plan on getting the clip through the bbq skewer?

 

[cdfigueredo]

Ok cool that'll work, how do you plan on getting the clip through the bbq skewer?

Easy. I made it before just for validate my idea. Just took the tip of your X-acto blade and make a little hole in the barbacue stick, just a bit. Then use an unfolded paper clip to make the hole, help it by doing the same thing by the other side of the barbacue stick until you go through it.
Do not expand the hole, because the retention clips will be made with paper clips too.

The hole diameter is so small that it will not weaken the stick too much.

 

[Grifflyer]

Sounds good, I was thinking if you coated the bbq stick in hot glue and then put heat shrink tubing over the glue covered bbq stick, and shrunk the heat shrink the bbq skewer would be a lot more durable and last a lot longer.

 

[cdfigueredo]

Sounds good, I was thinking if you coated the bbq stick in hot glue and then put heat shrink tubing over the glue covered bbq stick, and shrunk the heat shrink the bbq skewer would be a lot more durable and last a lot longer.

That sounds like a good idea. The thing is that the bbq stick will only comes out 5mm of the wing. Guess it won;t be enough space for this..
But still looking like a very good idea

 

[cdfigueredo]

Ailerons are full operative

Going now for flaps

 

[The Hangar]

Ailerons are full operative

Going now for flaps

Nice!!

 

[cdfigueredo]

Lot of updates today and lot of pictures

Center wing section is done and also the screws to attach it to the fuselaje. First i screw it to the fuselaje jsut to make a mark. Then using a tube i made a small hole on the wing skin.

 

[cdfigueredo]

Hey CrazyFastFlying here is the aileron-flaps setup. I think it is better for aesthetics in a scale plane than wing mounted servos.


Instead linkage stoppers i made my own using electric conectors. I cut them by half and i got two DIY linkage stoppers from one single conector. Then, took the servo arm and expanded the hole to fit the screw but leaving it a bit loose to allow rotation.

 

[cdfigueredo]

I made the flaps hinges from an old plastic CD box and used some servo screws to pin them.


The control rod is inside the fuselaje so it is only visible when flaps are deployed.

 

[cdfigueredo]

I forgot to mention... look how perfectly the wings are attached to the hatch


It is getting heavy... 454g

 

[cdfigueredo]

Grifflyer here is the bbq stick i was using for the test. Notice the widest hole was made with a 1/16'' bit and it is at least twice as wide as the hole made by the paper clip.


And this is the wing hole will receive the bbq stick.

 

[Grifflyer]

Grifflyer here is the bbq stick i was using for the test. Notice the widest hole was made with a 1/16'' bit and it is at least twice as wide as the hole made by the paper clip.
View attachment 158822 View attachment 158824 View attachment 158821

And this is the wing hole will receive the bbq stick.
View attachment 158823

Look good!

 

[CrazyFastFlying]

I made the flaps hinges from an old plastic CD box and used some servo screws to pin them.
View attachment 158812 View attachment 158813 View attachment 158814 View attachment 158815 View attachment 158811

The control rod is inside the fuselaje so it is only visible when flaps are deployed.
View attachment 158816

That's awesome!

For sure I'm building one of these! I don't know when, but I am!!!!!!