Yeah I think we need a little more info on how your making it to work out what going wrong... you coudl stick a core material like PVC foam or Soric into the base of the part to stiffen it up without adding too much weight... to reduce the twist you could turn the fibre through 45 dgerees that should help there... all this to make waitresses that little bit faster!

Salut Arsouille,

First, nice idea, I'm jealous, really

I noticed you said "I eliminated a lot them by using resin infusion and using bristle roller"....

Unless there's a technique I'm not aware of, there is no need to use a bristle roller when making resin infusion... Did you just wet your fabric and then pull vacuum (vacuum bagging method) or did you vacuumed dry fabric and then pull the resin (resin infusion method)? Sorry for what could be a dumb question, but its to be sure of the process you used. Then it could make a difference in explaining why those bubbles.

 



 


    A $1000 electronic device will always protect a 10 cents fuse

strange you have pin holes/bubbles in your surface. 

With infusion, if done correctly you should get no pinholes so something has gone wrong with your technique.

Are you 100% sure you havent had a tiny leak??

youve done a correct lay up of infusion mesh etc???

perhaps slow down the infusion by throttling the resin flow with a line clamp slightly.  Sometimes the resin can blast through really quickly and not soak through all the laminate.

a simple way to stiffen it up relatively cheaply is to use a foam core/lantor soric on the flat part.  If its cut exactly to shape and the edges of the foam core sanded to a point before laying up then it should be hard to see the core.

You can also stiffen it slightly by post curing the part in an oven.