Here are two sabers I have made in the past two months.
Both are made from a 7/8" copper pipe, with a 14500 li-ion battery powering the P4 LEDs. Both are great for saber spins and are strong. With 3/4" blades at 35" they don't whip while dueling and can handle the NCSCS system well in the GGK classes held in San Francisco. I plan to keep making sabers of this size only with aluminum pipes. To make them even lighter in your hand. With the 14500 batteries they don't have the run time as a 18650, but a great fun build. I hope you like them.

The CTS2













CTS3














Thanks for looking guys!! Keep on building!!