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I started making the wing ribs on 02/04/02. I
worked on them for about 10 days and rather than put an entry in the log for
each day of doing the same thing, I lumped them all into this entry. That's
why the total is 39 hours.
2-21-02
I'm finding out that it's tough to get the nose section of the ribs all the same
shape. From about 6" back from the nose aft the ribs are exactly the
same. but the nose sections differ as much as 3/32" I've devised a
plan to fix that. I'm building the ribs with an oversized solid nose block. Then
I'm going to make a router jig which I'll clamp each rib into and trim the nose
with a router to get each one exactly the same.
3-03-02
I built the router jig today. Basically it's a 12"x48"
piece of 1/2" melamine particle board. There are short
"spars" that are screwed to the board. The rib's then drop down on the
jig. On top of the ribs goes a 1/8" plywood pattern that is the exact shape
I want the rib. Then using a straight cutter bit with a flush bearing on
TOP of the bit I follow the pattern with the router as it cuts a perfectly
shaped rib every time.
03-04-02
Today I have 10 ribs so far. What I have been doing is building the ribs
in the jig and leaving the gusset plates oversized. When I get a batch of
8 or so I use a router with a flush bearing cutter to trim the gussets to the
shape of the rib. Works great and is SUPER fast.
03-06-02
Two more ribs made. Now at 12. Only two more to go before I modify
the rib jig for the aileron bay ribs. There will be 14 of those as well
for a total of 28 ribs.
03-08-02
The last of the standard ribs was made today! 14 standard ribs. Now I need
to modify the jig for the aileron bay ribs.
03-10-02
I cut a "kit" for the aileron bay ribs today. I pre-cut all the
upright and diagonal pieces to size. There are 18 pieces to each rib not
counting the cap strips. 14 aileron bay ribs x 18 pieces = 252 sticks I cut
today! Each one is numbered. Took a while but it was worth it. Now
all I need to do is pull the parts when I build a rib.
03-12-02
2 aileron bay ribs have been built. I'm trying to stick to building 1 a
day. If I can keep it up I'll finish ribs in about 2 weeks.
03-16-02
One more aileron rib done. Change in plans though. I had intended to
finish the ribs within the next couple weeks. Well.... The fuselage is
calling my name. I need a break from the monotony of wing
ribs. uggghhhh it just gets so boring doing the same
thing everyday... :-) so... off to the fuselage.
I'll pop put a rib every so often while waiting for fuselage glue to dry.
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