Can anyone here say what the core material is for these bicycle fork tubes and crank arms? edited: looking back at the video it looks like the fork tube carbon fiber cloth is wrapped around a wood inner mold??
Premolded closed cell foam
.
I love the gloves used on the workers using prepreg.
oh wait…they aren’t
screams
(just noticed that was the last comment I left on that video a few months ago…heehee)
as for the fork core, might be wood. wrapped in plastic maybe? almost what it looks like. or just dark/dirty/burned aluminum.
I didn’t notice the no gloves part…wow that’s just dumb to not wear latex gloves.
Riff, you could be right, the fork mold being burned aluminum… I forgot when you get epoxy on hot aluminum it tends to leave brown burn stains. It did look like they used clear plastic wrap over the tool.
Q: how does a person make a premolded closed-cell foam shape?
Directions please 
Gloves = more cost. It is China your talking about.
Q: how does a person make a premolded closed-cell foam shape?
Directions please
My only guess is you place a large order to a CNC machinist.
you can also cast core in to a mold
in all honesty gloves are a good idea but you still don’t want to get anything on latex gloves, organics permeate the glove regardless… we used gloves in the University labs but they were just meant as a time buffer so that we wouldnt get any siplled material on our skin. the instant you would get any thing on the gloves they would be off and new ones on… that’s really all the protection we expected from them…
breakthrough…yeah, but everything has a block. if not latex, nitrle, etc…anything!!!
-Well, besides carving one yourself…
-You can CNC it in house or out-sourced.
-You can have a multi-part tool, and squirt in some 2-part foam liquid (doesn’t Fibreglast sell that stuff?), or even that gap filling insulation foam-in-a-can!