8mm shaft end bracket

thingiverse

This holder clamps onto an 8mm round shaft with end-on precision against any flat surface. The hold is further secured with a screw that attaches using standard M3 hardware, while accommodating any size or dimension with interchangeable SCAD files for perfect adaptability.\nMy prints come out impressively close to the ideal diameter, often by just 0.1 mm; thus I was able to tightly grip the rod without the slightest play and firmly secure it in place using both the M3 screw and nut, ensuring a sturdy bond between the parts.