I've built a few wooden 6 sided rod cases. I have a thickness planner that made the work easy. I think a router would work as well. Several sources for 60 degree router bits, try 'WoodCrafters'.

I built a beveled jig to hold several strips at the correct angle and ran them through the planner, flipped them over and jointed the opposite side. You could do the same thing with a table saw and a bench router.

I also added small square strips in contrasting wood at each corner. These are easy to make since they have 90 degree corners. They help round out the tube and add nice color. With the strips my tubes are really 12 sided.

Lay out the jointed pieces on some 2" wide masking tape, sticky side up. Apply glue to the joints with a brush and roll the tube up and bind with string.

I made my end caps out of solid 1/2" hardwood. I cut them to match the outside diameter of the tube, then routed an groove along the edge to match the inside diameter. I use a small leather strap with brass hardware and a buckle to hold the lid, the base is glued into place. The leather and brass look nice against the red oak panels w/ walnut corner strips.

If I were to do it over again I would make the wood tube just large enough to fit over a 1 1/4" schd 80 (thin wall) PVC pipe.

I would make a cordura nylon sock for the inner tube and plug one end with a padded wood insert. I would use this light weight inner tube (sort of a reinforced rod sock) when I'm hiking or in my boat.

I find that I often don't take the nice wood cases when I think they might be damaged or when I need to do a lot of walking. Guides want me to leave the wood cases in the car because they don't want the responsibility of loosing it if we flip.