[Rod]

Here is how the tube was made. The wood was 6mm thick Russian Birch. They have 22.5 degrees edge cut on each edge. I used a router bit which cuts that angle. The router was mounted in a router table. Cutting all the edges only took a few minutes.

Every second piece has a jarrah laminate.

You tape the pieces together with the narrow edge faced down. Then the whole thing is turned over and polyurethane glue used to fill the v shaped groove between the planks. I made up some circular clamps from hose clamps to hold it together while it dried.

These pics are of another octagonal tube I made with my son. I used the same process on this scope. Sorry for the extra posts for some reason I am only able to post one pic at a time with my iPad.