I didn't want to answer too quickly, lest I get taken as someone extremely interested in this
. But the photo at
this thread caught my eye: I guess there is a reason for the added width! I didn't really think it would allow two robots passing side by side, though two people could. I fear that it will have people
think they both can get by with robots.
I did use the word "hook" two different ways. The first I meant the U-shape hook to hold the panel on the field wall. In regards to that, if the pipe attached to it rolls upward when it gets placed on the field wall, due to being attached by zip ties only, I suppose it could be made that way.
The second "hook" I meant as that small pipe sticking out and catching a robot or a leg as it goes thru the gate. Seeing the photo linked above I see it's in the current gate anyway, at the hinge and to a lesser extent on the latch side. I withdraw my comment that the pipe could catch a robot et.al., as it obviously isn't a major issue currently.
This part of the gate is a major custom built part, even if it is from store-bought peices.