Quote:
Originally Posted by Madact
Actually, you'll notice that the 'stalk' is an airfoil section - plenty of room in there for cable runs. And with a rectangular mirror, you could round off the outside end to allow for a camera mount.
There's a neat trick to making hollow things with fiberglass / carbon fibre: if you make the form out of styrofoam and use epoxy resin for the fiberglass, you can lay up the fiberglass right over the styrofoam, and then when the resin is set, a very small amount of acetone will melt the styrofoam away. You can't use standard polyester 'fiberglass' resin though, it'll melt the styrofoam too early 
Regarding styrofoam, if you want to go this route, use the 'extruded' stuff, which is made by dow, comes in pink and blue, is fairly affordable, and should be readily available from building material supply places and refrigeration specialists (or possibly skips at building sites - ask nicely  ). Don't use the white 'expanded' polystyrene, it's made of little balls which are a nightmare to work with. Extruded polystyrene cuts neatly with a sharp knife (a break-off utility knife at full extension works great) or a hot wire, and sands fairly easily (use a vacuum to avoid static-clingy dust everywhere). |
That's almost what I did, although I wasn't sure it was going t work, so thanks for clarification. I used some blue stuff and cutted it (don't think is the same thing, but I'll try int anyway) and this week I'm going for the fiberglass route and I didn't knew of the different resins. I have a 3M one which I think is the epoxy type. Hope it doesn't melt it...
This is the stuff right now. Still needs sanding because now it looks like it's been done by a 5-year old kid
