I did one of those for the spring fire pit contest… the holes above the handle are for a bolt to hold them together… but looking at it now that hole should be below the handle… might not feel to good wrapping your hand around a bolt 
Also I need to add more vent holes.
I still haven’t cut it out but the DXFs are here:
These are a work in progress… wanted to post them before the end of the month.
You can put your custom design on the ends. I did the assemble in fusion 360 but have not cut them yet so user beware. I was waiting to post them till I was able to cut them to make sure they worked and so I could post some pics but I won’t be able to get to if for a bit.
Collapsible fire pit. You need to cut 2 ends and both side 1 and 2
Fire Pit End 3_16.dxf (5.5 KB)
Fire Pit Side 1 3_16.dxf (14.1 KB)
Fire Pit Side 2 3_16.dxf (6.0 KB)
I have always enjoyed cooking on a Swedish fire torch and/or log rocket stove. In the past I have used grille I made of rebar. Thought it would be fun to design and cut some. I have held off on posting these as I wanted to post with pics but haven’t had the time to cut them yet.