>Thanks to all who responded!!!!! I cut out 3"wide strips of fondationless brood comb from a langs frame,and hung from 2 bars with an empty in between them.Is this sufficient, with due diligence on my part ,to add empty bars between.
That depends on the spacing of those combs and the spacing of your bars. If they are 1 1/4" they are perfect. If they are 1 3/8" you will probably get by. If they are more or less than those you will probably have problems.
>When you hang comb how tight do you have against the bars.
If it's touching here and there they will attach it. if it's not touching, it's hard to say.
>I figured it would be easier to attach if the bees have access between most of the comb.
I would have it touching as much as possible.
>Also,gravity can help keep it straight until reattached.
How? If you tied it from the bottom gravity is not keeping it straight.
>Is the brood supposed to be near the entrnce or the back ?
It is "supposed to be" where ever they put it... typically that is near the entrance, but sometimes it's in the middle or even in the back.