I tested the excellent original file and it fitted my SeeMee DV camera light. I needed one to go on the front of my bike so I remixed the design to fit handlebars, which it does extremely well.
I created a flat on the round section (arrowed in the screenshot) which should be on the bed of your printer for correct orientation and I used PETG with tree supports.
Clean up the interface carefully to make sure it fits well and use vaseline if necessary to ensure it doesn't stick.
You'll notice from the photos that I use some lightweight bungy cord to make a safety strap to ensure I'lll never lose the camera light. I learned about this the hard way from a previous incident involving a different camera with a 3D printed mount.
The screws are M4.
SeeMee_DV_Camera_Light_Handlebar_Mount_v2_clamp.stl | 235.4KB | |
SeeMee_DV_Camera_Light_Handlebar_Mount_v3_with_flat_2.stl | 339.6KB |