The last woodworking step of this project will be to drill holes near the top of the tubes for the tube strings. While matching the rip cut on the bottom of the tube, measure down one inch from the top of the tubes and place a mark. One mark should be placed on each side of the top of each tube.
With the locations marked, drill a small hole (about 1/8" diameter) at each location. Because bamboo tends to splinter, drill from the outside in on each hole rather than drilling two holes at the same time. If your bamboo is particularly dry, you may wish to wrap the top with masking tape before drilling to minimize splintering.


