10-04, Step 2, fluting F-1211A ???

[MacPara]

Finally I have run into a problem that I can't seem to figure out by myself. I've also searched blogs of fellow builders and it appears that no-one else had a problem with this before, so you guys are my last hope before calling Van's.
On page 10-04 in step 2 it says to flute the bulkhead F-1211A slightly to remove the pucker in 4 places. Well, it appears that what creates the pucker looks like a slight flute to me (see photo). Now, how am I supposed to eliminate something that looks like a flute with another flute? Shouldn't I use seamers instead to flatten it? How did you solve this problem?

Thanks,
Torsten.

 

[Dgamble]

Check here:

http://www.schmetterlingaviation.com/2009/12/aft-bulkhead.html

It's fairly far down the page. I used the fluting pliers upside-down (in effect making them into anti-fluting pliers) to push the spot back down.

 

[MacPara]

Check here:

http://www.schmetterlingaviation.com/2009/12/aft-bulkhead.html

It's fairly far down the page. I used the fluting pliers upside-down (in effect making them into anti-fluting pliers) to push the spot back down.

Thanks, Dave! I must have missed that as I usually check your blog first before starting to work on a new section ...

 

[MacPara]

That worked! Now, the only problem I had with that was in the tool, I believe. I have the fluting pliers from Avery and the center fluting "nose" is much shorter than the two counter parts. So short, that when trying to counter flute the puckers, the center nose would just not have contact with the pucker...
To get there without marring the metal I put a soft piece of wood underneath the flange (where the two counter parts go) while squeezing. That gave me a little bit of room to apply the pliers tilted and get the nose to sit tight on the pucker while it still had good contact on the inside of the flange. I just used a piece of these wooden wedges you use to level furniture and such.

Thanks again!