Fluting the HS ribs

[jdeas]

Guys,
Has anyone got a photo of a properly fluted HS rib? I am working on mine tonight for the first time. Is it appropriate to use a light flute between every hole in an effort to get the web to lay flat on the table? Do you bend the flange to 90 Deg before doing any fluting?

 

[lorne green]

fluting

Just flute as required to lay the edges flat. I didn't need to flute between "every" hole. Oh, and just a tip: deburr before you flute...it's just easier. The angle of the flange shouldn't change too much right out of the box.
my .02 cents (Canadian)

 

[G-force]

If you want to get together, let me know and I can take a look at them. If I remember, I fluted between each hole, very lightly on the nearly flat aft areas, and increased the flute depth as the curve got greater near the leading edge.

 

[jdeas]

Mike,
I'll take you up on the offer. Please check you private messages.

 

[Captain Sacto]

Fluting between each hole

JD you asked Is it appropriate to use a light flute between every hole in an effort to get the web to lay flat on the table?

That's what I did, and they came out just fine.

A couple of things that worked for me... first, laying the ribs flat on the table didn't seem as accurate as laying a straight edge across the holes (pick a tangent point, eg hole bottoms).

And second, like it says in the Van's instructions, use a hand seamer to squash some of the arc out of the flutes if they are overly fluted.


good luck

 

[jdeas]

Thanks for the help guys. After sleeping on it I tried using a rivet fan! Just set one Cleo and you can shift the fan out of the way to flute and back again to check! With Vans prepunched holes I see pefect circles when done.
* No, the rib below is not finished yet....
Even better, Cleco both ends. There is room between the fan fingers to flute.

 

[cytoxin]

once

yes i did flute between every hole...on some other parts i fluted 2 or three time between holes. i feel the fluting between every hole requires a lighter flute and more evenly flattens it back out. some parts are so close to staright though 1 every other hole is ok.

 

[osxuser]

I start at the center and work out on either side until they are flat, one every other hole usually, occationally more. I don't sweat fluting that much.