How to fix chattering countersink hole?

[Red_Baron]

As always, thanks for the advice guys and gals. Much appreciated.

I was VERY fortunate that I hadn't drilled the countersink holes deep enough. This gave me the option to repair the irregular holes by drilling them deeper to the correct diameter.

Based on the advice from the guys in this forum, and a bit of research from Brad Oliver's website (RV7factory.com) I was able to make myself a pilot hole guide for my countersinking flute.

Here is probably the worst example of an irregular hole. Most of the holes were round and smooth, and the others that were irregular were much less severe than this one.

Using my new pilot guide, I was able to fix this particular hole so that it now looks like this.

It's still not perfect, but it's MUCH better than it was before. I'm still fixing the holes as I'm going very slow and careful. It seems I may have been very lucky in not wrecking my spars. Another lesson learnt in the building journey.

Having an absolute ball!!!

[Ironflight]

Good job Gavin! I always tell people that learning how to FIX your mistakes is the first true step towards being a master builder. Anyone can order new parts, but if you can correct your problems with the parts you have (not hide them FIX them), then you are getting the hang of things....

Paul

[gib]

I do this for a living and that my friend is the different between a pro and beginner.....the guy that can fix his mistakes and make it look good and you have done it. Good Job!!