Threadless Ballscrew (customizable, no backlash)
thingiverse
This fully parametric threadless ballscrew design ensures no backlash for linear motion. It's based on MSollack's original design, with enhancements from RifRaf (http://www.thingiverse.com/thing:124800). The dual-bearing model provides higher precision and torque capabilities. The design is compatible with common 608zz bearings, but customizable for other setups. For printing, use 0.2mm layer heights, 25% infill, and adjust GapTolerance if needed. It works well with M8 and M5 bolts/nuts, a 10mm rod, and 608zz bearings (22mm OD x 8mm ID x 7mm H). Testing is required to confirm bearing angles and pitch compliance, as well as exploring torque-handling improvements. A video demonstration is available at http://www.youtube.com/watch?v=Rkhm-hp9788. Enjoy customizing your ballscrew!
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