thunderchief

I have been having trouble getting the cloth to lay down well going around a sharp corner……………Keep getting air bubbles under it. Are there any tricks to it? For a concaved corner I paste the area first then lay in my cloth but for sharp edges you can not paste them…ideas
Thanks
Glenn

soarrich

My Feedback: (98)

http://www.youtube.com/watch?v=FCivvXA2FVU
Vacuum bagging works well.

Iron Dog

I am not sure if by "paste them", you mean "radius them", but if not, then a good first step is to radius (or round-out) the corners with a mix of microballoons and resin. Also, if the cloth strands run at a 45 degree bias to the curve(s), it will conform to complex shapes better. Often a relief cut is necessary . . . think of this as what you do with Monocote (or similar covering material) to get it to lay down around rounded wingtips, etc. Sometimes, I find I still cannot get the cloth to conform in a hand layup, so I have to resort to smaller pieces, &/or putting one piece on one side, and another piece on the other side of the curve, then just overlap a bit on the curve itself.

See posts #17 - 25 on page 1, and post #54 on page 3 on the thread linked below for pictures and specific steps that I have used successfully, even with just simple hand-layups (I don't have fancy vacuum bagging equipment, yet.):

http://www.rcuniverse.com/forum/m_96..._1/key_/tm.htm

Hope there is a least onelittle usable "nugget" that would be helpful to you.

Ollie

Magne

Also using several layers of thin cloth instead of just one or two layers of thick cloth will help.
If there is only one or two difficult areas / corners, then you could use many layers of thin cloth locally, and lay up the rest with thicker cloth. (Overlapping and stopping the thick cloth just short of the corner.)

Magne