I saw this desk lamp design on Pinterest and used it as an inspiration.
I chose to use an battery powered LED light. This way the lamp is ultra-portable.
The right end is glued and the left side is for tightening and loosening the joint.
The last time I threaded dowel I cut about 24 inches knowing that I would use it in the future. The tap cuts threads to match exactly, just as when working in metal.
I cut the thread with a thread box:
Generally I have had success with threading wood, there are a couple of things to keep in mind. The dowel and nut cut best when wood is straight grained. I soak the dowel in tung oil before threading to help lubricate the cutter. When tapping the threads I drill the appropriate sized hole and then lubricate the tap with paste wax to help while cutting the grooves. I have also found that when tapping the wood is is best after cutting the threads to clean the die and run it through a second time to get clean clear threading.
At this point the glue is drying on the knob and the base. I will take the arms off to finish the lamp and to fit a small section upon which to attach the light. I think I will round the corners and stain the lamp a dark brown.
I think this will make a nice little desk lamp for someone.