I'm going to build a top bar hive but I have a few questions before I decide on a design
1) How do you keep bees from attaching comb to the walls? My bees would readily attach to the outsides of foundationless frames. so why not walls?
2) In photos I see the top bars pressed together to form (in effect) a lid, usually with either just plywood and a rock on top or a fancy looking cover. I also read this on Michael Bush's website
How do people usually manage the width of their bars? a bunch of spacers sounds like a pain but adding unfilled space between the bars would either leave openings between each bar which sounds bad because there is no inner cover to cap things off. Plus they might come up and propolize the cover to the bars, which also sounds bad to me.Question: Why can't I make all the bars the same width?
Answer: You can. But regardless of what you do, the bees won't build all the combs the same width, so it's difficult to keep them on the bars. If you want to build them all the same width, I'd make them all 1 1/4" wide and make a lot of 1/4" spacers to put in between when the bees decide to make fatter combs to get them back in the center of the bars.