Hello All
First time builder from Australia, thought I would throw in some information about the wings for those in the future, the foam board that I've managed to find locally (5mm Thick, white paper both sides) doesn't like to bend in the same way that I've noticed that others have been bending, so I've found some ways to make my attempts work (I've made three Nut Balls, Two Flyers and now one and a Half slow sticks, none of them I've managed to get flying, I get time in the evenings, but not during the day due to work, but hopefully some time this weekend to try them out, if I can figure out the CG Issues (but I am going to try the 'glide/chuck tests first, so hopefully this will make me a little more confident that we wont destroy them!)
I am going to be using 8x6E Props on a 2208 Motor, with a 20A ESC with a 4 Chan FS2A with either a 2S or 3S 500Mah Battery (what I have on hand)
I took the information from a previous post from Soareyes on June 28 2023, and have done some changes myself.
I cut everything out (for myself, I take the plans, print them out on a A1 Printer, and then lay them down on a sheet, and cut out a master set/Template) from the master set I created, once cut out from the reference template, I then do the score cuts and break along those cuts (the red dashed cuts), put some fibrerglass tape on the reverse side of the hinge (The length of the "cut"), I then do the bevel cuts (I find what works best for me is to put the ruler about 2-3mm behind the line and then cut along after the section has been folded back), I then run some hot glue over the "hinge" and run some scrap foam along it, making it nice and thin, and then put aside to let it dry.
For the Camber, I followed Soareyes procedure, but for me, I found that getting the bend is exceptionally difficult due to the material, so when I do for these kinds of bends, it take a blunt skewer and run it along the cuts in the wing so that it opens it up so it has somewhere to fold into, I built up a 25mm wide, by 350mm long , by 20mm high "spar", glued together, with painters tape on each end, I placed between the 3-4 cut, on the side of the cut, and then started to glue, gluing one cut at a time (Running enough glue to let it leak out a little, and then opening again, and then closing once more, to make sure the glue is distributed, then running a piece of scrap foam board along the cut to clean off the excess) then turning the wing over so the cuts are facing down, and the spar is support it, I simple push down on the leading edge, wait a few minutes until its cool and dry, and repeat, when you get to the 3-4 cut, and it needs to glue, I pulled the tape off, and just moved it a little forward, I found that I accidently glued the spar to the wing with the glue oozing out, It holds the camber described, and then I placed wide fiber tape along the cuts.
To Glue the two sections together, (as there is a slighly different cut in the middle, its not square to the wing, this allows the two to be put together to get dihedral) I loaded them into the front brace (the 3D Printed Brace) and with some painters tape, got it all square, pulled the brace out, turned it over to expose the underside of the wing (where the cuts are) opened up the center cut, and then ran hot glue along the center section, pushing it back together and waiting for it to dry, pulled of the painters tape, and ran fiber tape along the cut on the top and bottom, and this seems to make a truly strong joint.
The shaft is 82cm long, I only managed to find 8mm extruded Carbon rod in my area, I was looking at Arrows, but the price difference was substantial, I've redesigned the motor mount as again, I only had m2 screws with hex heads so they didnt fit in the model supplied, I found there was a 2 Degree right and down tilt to the mount which I built in again to the new mount.. I think I've just managed to make it heavier!
A photo for the sake of it, I have not figured out how to CG it all yet, my thoughts are find a place for the wing, and then balance the wing, and then make the model balance around the position of the wing, to me that would make sense. Please ignore the apprentice in the photos, its a super cheap market place purchase, that I got for a silly cheap price, it was crashed, and thought for the cost, may try my hand at fixing it (Tail is broken, nose wheel is broken, rudder servo is broken etc, and the tail section towards the tail feathers has a truly nasty crack through the foam that needs some more glue and supports)
Thanks!