In part 1 of home made hinges i showed hinges made of aluminum socket head screws, in part 2 I am going to show hinges made from 6-40X 1nylon socket head screws. I made the mock-up using 1/4 balsa. I did the glue testing using slow cureCA glue. The holes for the screws were drilled with a 1/8 inch. copper tube drill. I used 1/16 music wire for the hinge shaft. I used a 1/16 drill bushing liner to drill the head of the screws. The screws will cut a thread into the balsa when screwed in , I put a lite coat of glue on the threads. After the glued had setup I could not get the screw out of the hole. I will be using the 6-40 and 8-32 screws for my hinges from now on with the 1/16 music wire shaft. The screws can be had from Mcmaster Carr for $6 per 100. I think a3/4 inch. long thread would be fine. This is a no gap hinge and no V on the balsa.
Ken

I am going to try this on my next build. I think it's genius. I am building mostly 3-D planes these days, so I would knock the edges off for bigger throws, but I think it will work great.

Thanks for posting

Ok, I just have to say this...

In your first post you noted how there was no gap. The reason to keep the gap to a minimum is to avoid having air slide through it.

It is true that you don't have a gap, however, you have huge holes that the air can slip through - which is just as bad.

As stated in my opening post this is a mock-up, a show and tell thing, if you build your model like that its your problem.
Ken

I rest my case

You are right, this was the first time I used them on a model and the hole is big, its a learning process thanks for pointing this out.
Ken

How do you keep the movable surface from binding against the screw heads?
In the shot of the vert stab/rudder, it seems that gravity alone will naturally pull the rudder down so that it makes contact.

So far friction has been working, 1/16 hole with 1/16 music wire is a honeymoon fit. What I am going to do is put a little heat shrink on each side oftwo heads, a little heat and your set but if you need to take the shaft out just cut off the heat shrink. When I put a shaft in I use my drill with a point on the end of the shaft.
Ken

Why not just use hingepoints? Cheap, gapless, designed for the task, nearly invisible and easier movement than CA hinges.

I used to use them thats why I wanted to make my own, I can take mineapart only cost me $3 for50 hinges.
Ken

Why not use the hinge point concept.. take a longer nylong bolt cut in half. With a dremel or similar make slices in the ends, place the "fingers" together, drill your hole, slide the full length wire in wire in and your done. To keep the wire in place you could place a single bolt a the bottom with a hole not drilled all the way through to hold it in place.