Quote:
Originally Posted by Troy
Thanks for the info 
From the picture looks like you wrapped the first layer around mandrel and then applied the resin after that. When you completed wrapping the carbon fibre did you use a vacuum bag for it to set? |
It's not very clear from the picture, but first I applied a generous coating of resin onto the mandrel and then I wrapped on the two layers, feeding the cloth under a slight tension. Only after that I brushed on the remaining resin.
The mandrel is very smooth and cylindrical and the cloth conformed very well, without trying to produce bubbles. I wanted to avoid vacuum bagging because the 3D printed skin of the mandrel would distort under the pressure. However, after the resin has gelled, I did wrap the ends of the tube and the seam with 50mm wide masking tape, just to make sure that the carbon conformed well to the mandrel. After about 4hrs I removed the masking tape.