Paul

  For those willing to build with epoxy, I think, the best would be to
  purchase directly made sheets to be glued on rib

  Not the cheapest way, but by far the quickest giving a superb
  result.


https://www.rockwestcomposites.com/plates-panels-angles/carbon-fiber-plate/c
arbon-fiber-fabric-plate/plate-carbon-fiber-qiso-tri-axial-gloss-matte-48-x-
120-x-0-050-inch-thick-options



  pascal Virlouvet


  Thanks Pascal

  I have the wing rib problem decided. This is a teflon mold .75 inches
  thick. The procedure is wet out the fabric and place it over the
  center piece hole. Press the rib form into the center mold. the
  flanges will be automatically formed. Put it in an oven set to 200 F.
  Let cure.

  Teflon is good to 500 F.

  Each rib will be precisely the right size. Cut a hole for the spar
  and use  sort pieces of carbon fiber angle to bond and pop rivet the
  rib to the side of the spar.

  This will be much faster then making each ribs out of foam and
  covering it by hand  with fabric glass or carbon.

  Patent applied for :-)

  Paul Lamar

Pardon the "Captain Obvious" visit... The same process works very well for
bulkheads and fire walls. Screw the hole plug to the base also for accurate
hole location of wire/control looms. A piece of fiberglass tubing inserted
would give a nice clean finished hole.

Michael Nash


Hi Paul,
    It is not a very good idea to use pop rivets to hold fiberglass
parts for curing, they crush the composite, especially the monel ones. I use
hot glue as a jig, it is ideal. You can lay up right over hot glue no
problems. Just bond the part as per normal, then a couple of judicious dabs
of hot glue to hold it whilst curing. The hot glue can be removed after cure
if needed, otherwise just leave it there.
    Chris. Hoskins in NZ


That is why I found these plastic pop rivets. I mentioned them awhile back.
In the last 2 days I think. I think you missed it.  Ah here it is 09/16/2016  2:06 PM
my time. It was a png so it may not have shown in some OS's.
Here it is again in jpg form.

They just hold the parts until the epoxy cures of course.

Hot glue sounds good as well. I use it for winding coils.

Paul Lamar



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