Burke, IMHO 30 minute epoxy and chopped fiberglass works fine. drill your hole on the panel the use pointed tweezers to pick out the foam to about a 3/8" radius all the way from underside of the top carbon down to the top of the bottom carbon fabric. Tape the bottom hole fill with the mixture (just make sure you get a complete fill), wait till the next day for a good cure and then redrill the hole. I have yet to have any damage to the wing in the bolt area (other than the bolt shearing) even after radio failure induced lawn darting from way up. You can also use hardwood (full thickness as well), but you have to lay it up in the wing before bagging. (I would always use a full thickness top to bottom or the pressure from the bolt will crush the foam) Dave Malone [EMAIL PROTECTED] wrote: > > I am building a 2 meter wing with a flat center section that will be bolted down to >the fuse. I am using blue foam with 80/20 carbon fabric. What type of hardpoints >have you guys used on the bolt connections? Do these hard points need to go from the >top to the bottom of the wing skins? > > Thanks for the help! > > Burke Jones > www.custom-cores.com > RCSE-List facilities provided by Model Airplane News. Send "subscribe" and >"unsubscribe" requests to [EMAIL PROTECTED] RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
