Generic Bike Backlight Holder

thingiverse

Very sturdy mount for an off-the-shelf bike back light (~5 Euro on ebay) with a recess for nut and bolt. Designed specifically for M4 Nut and bolt but should work seamlessly for any size as no actual mechanical force is transferred to this part. Withstood over one thousand kilometers so far without any issues. The bike light "snaps in" and shouldn't have much play room. If your light doesn't fit perfectly maybe add some low-density foam to the back so light pressure pushes against the fingers that hold the light. I designed the recesses very snug without much tolerance. If the nut and bolt don't fit perfectly in the recess, heat them up with a soldering iron and push them in. Made with Blender and the Measure It addon. There are definitely better programs to do this job.