Friday, November 26, 2010

Rudder case and mast details

I laminated the first 19 carbon fibre pieces of the rudder case tonight.  Somehow, not being able to bag it, I got scared of lift off and other problems during cure, so I tried to clamp it all to the mould.  Well. We'll see tomorrow.

I was grateful for making up some solid glass and carbon fibre panels earlier, I used both types today.  Carbon spacer for the rudder hingeing glued to the G10 tube

Started the spinnaker halyard block lashing eye.  I've spent a lot of time trying to figure out a clever way of making bullet proof lashing eyes on the mast.  Tonight I decided to give it a try.  A three piece mould, fitting the curvature of the mast at the attachment point, was made from light foam. A 6mm thick massive glass/epoxy D-shape was cut to serve as the lining of the 3/4" hole to be made later. The glass piece was placed in the vertical slot in the photo, and the curved perimeter of this piece was wrapped with ten layers of 400gsm uni cut in 6mm wide strips, the ends of the uni distributed as a fan in the mast shaped piece of the mould, then covered with a couple layers of 45/45.  Next step is laminating the out-/top sides making up a total of 10 mm in the vertical tab.  It will be mounted from the inside trough a slot and covered from the inside with further layers of reinforcements.  Then a hole will be made in the tab sticking out of the leading edge of the mast.  We'll see.

1 comment:

Anonymous said...

Clever, clever your 3d mold
Gratulation, your progress is impressive...