Muscle Roller

myminifactory

This is a 3D printable muscle roller I designed and built. I primarily use it on my legs, but it can be effectively used on any muscles. To create a roller, you'll need two handles (either variety will work), a bar, and three nubs. The connection is achieved through a friction fit, which means you have to push the smaller end of the handle into the bar with some force. The "ShorterHandle" is 0.5 inches shorter than the standard "Handle", making them nearly identical in length. To assemble the roller: attach one handle to the bar, then slide the three nubs onto the bar. Finally, force the second handle onto the remaining open side. The handles and bar should be printed with ABS material, as its shrinkage contributes significantly to the friction fit. ABS is also stronger than PLA, so it's less likely to break when in use. The nubs can be printed with any type of material. I plan on purchasing more materials to test their compatibility and changing the handle size to accommodate materials that experience minimal shrinkage. When printing this design, I recommend using 4+ perimeters and 10%+ infill to minimize the risk of breakage. I used makergeeks ABS to print my roller, but feel free to experiment with different settings. A notable feature of this design is an 8.5mm diameter gap running through its center, approximately 26.7cm in length. This space can be used to insert a metal rod for added strength and stability. I intend to create additional nubs for this roller.