Today's Message Index:
----------------------
1. 03:34 PM - Lightening holes in ribs (Scott)
2. 04:02 PM - Re: Lightening holes in ribs (Philippjw54@aol.com)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Lightening holes in ribs |
Bought an OLD wing kit for my RV-4 recently. The lightening holes need
to be cut out on the ribs. Does anybody have a pet method for
accurately finding the center of the cutout...I will be using a fly
cutter to do the cutting job.
--
Scott
http://corbenflyer.tripod.com/
Gotta Fly or Gonna Die
Building RV-4 (Super Slow Build Version)
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Lightening holes in ribs |
Just make sure when using the fly cutter that the cutting edge of the fly
cutter is right on the edge of the circle being cut out. There's no exact
science to finding the middle of the circle. By trial and error and with a little
patience finding the center of each circle is not really difficult. Put the
fly cutter in your drill press and then start by checking at each 90 degree
location. If it looks good and your satisfied then go ahead and make your cut.
You just need to be brave and go for it. You don't need to be perfect but try
for just a little under the maximum hole diameter. Remember, you have a lot
of holes to cut and I would start by cutting all the large holes first and
work your way through all the ribs. Then go to the next size smaller hole and
continue until all those holes are done and then go to the smallest holes and
cut them. It will take a couple of nights to complete all the lighting holes
but eventually you will finish. Then you have to use a scotch brite pad and
polish all the cut edges until there are no rough spots. They should be smooth
as a babys bottom. Then prime as soon as you can using your favorite primer.
Good luck.
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|