Thanks for the responses, but most of what you guys said went right over my head. I'm a complete NOOB and know almost nothing about 3D printing. I'm using Autodesk Fusion 360 to design the shape I want, but I don't know how thick to make it. It's for a BT-55 tube. If anyone can point me toward some good learning resources, I'd greatly appreciate it. Thanks.

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Mike Fields