Ray is right. Use his applicator. My memory failed me in a previous post and I mixed up the thinning between Duco and Ambroid. However, I still need to experiment with possibly thinning both glues to get make sure that there is not too much glue, especially if the glue gets dried out a bit, etc.
I looked at my notes from an F1D build. For 30" of 0.003" boron (for the motor stick), a bit more than 3mg (3.2mg is you trust my scale) of glue was used. The same amount of glue was used for another 30" of 0.003" boron for the tail boom. For the very first F1D I built, I used 0.003" boron on the stab spars. That time, the glue for 48" of 0.003" boron weighed 23mg!!!. On the last build I got that down to just under 6mg by being much more careful with the glue viscosity and draw time.
Leo
--- In Indoor_Construction_at_yahoogroups.com, "ray_harlan" wrote:
>
> Your glue is too thin. Use full strength Ambroid.
>
> And, of course, use Ray Harlan's boron glue applicator!
>
> Ray
>
> --- In Indoor_Construction_at_yahoogroups.com, "Mark F1diddler" wrote:
> >
> >
> > Anyone think they have the trick to getting a thin, even layer of glue on a strand of boron before it is attached? I've tried the method where you pull strand through a .015" tube/nozzle with bath of glue on other side (thin glue or thick, have tried both.) The result is always a series many beads of glue along the boron. I don't like how these (dried) beads lift the boron up off the wood surface by a few thousandths inch, which have to be melted down to contact surface, which sometimes introduces slight wiggles in the result. I want a smooth, even coating of glue. Precoating method should be lighter, so I revisit it now and then, but then go back to old way (glue from top with 28 gauge syringe.)
> > MB
> >
>
Received on Fri Jan 25 2013 - 15:20:18 CET
This archive was generated by Yannick on Sat Dec 14 2019 - 19:13:47 CET