Could not find a female one that fast, but can show you this: This was done last thursday.
Hi, just trying to give back what I have learned thanks to the generosity of others, (in case I leaned anything), I am still a complete novice, but doing my best.
Hi Herman, beautiful pics but in them I can see one of the reasons for my (maybe paranoid) worries with fishbone, the resin fronts produced by the vertical resin lines get too close from each other looking like if they could enclose a dry area … very likely my inexpereince in the field makes me see ghosts where there where nothing I apologise for that
Still reading the hull truth thread Jigger, but it is very interesting. On laminate thickness… CFM is not the only way to build thickness, or flow resin through a solid laminate.
What looks good on paper to a naval engineer might not look practical to the composites tech, that has actual experience with vacuum infusion, doing the job.
Do not worry too much on dry spots. Actually 95% of them disappear after a couple of minutes, especially with flow mesh. The very most important thing with resin infusion is the vacuum. Spend time making sure your bag is airtight, and that you reach a good vacuum. Once you achieved that, there is very little that could go wrong.
Also, with your hull shape and infusing in a female mould, the runners radiate outwards slightly, so there is no problem. The only thing that should be avoided is runners (whether real ones or racetracking, as in bridging) should not converge into each other. A couple of pictures to illustrate:
First one is the dry stack, you see 2 runners converging into each other. The white material behind it is hard plastic infusion mesh which prevents imprint. (the builder choose not to use a flat runner). The complete boat also has been covered in knitted infusion mesh. The blue material is perf film.
The second picture is the same spot but on the other side, halfway infusion. You see a void develop. At this time you are relying on the vacuum to solve things. As long as there is an airpath, there is nothing to worry. Even if the airpath is closed, infusion continues. There is still a vacuum in that void. (and the resin sees less vacuum, so there is a pressure differential, thus resin movement).
Even when vacuum decreases you see airbubbles passing through the mesh, and the void still disappears. Only when this stops, you need to startcorrecting things: Insert a syringe needle with vacuum on it through the bag. Usually within a couple of seconds the void is gone.