There may be some confusion as to how Luke makes these disc diffuser slides. Are they made by weaving? Are they machined? I'm confused as well. It looks like a combination of both ways to me. However it's done, it's amazing work! Luke Wilson's technical skills shine! We first saw these when we got some of his 6 armed tree bubblers last month. These are pretty similar looking, until you get close up. These bubs have 10 tiny diffuser arms that surround one larger stem. The small arms are fused together to help keep them from breaking off. A pretty common practice now a days.