I have made a mounting interface to the Cycliq CE family of lights. My design is similar to other quarter-turn and eight-turn mounts because I prefer to have a twist mount that has some spring built into it instead of just mostly rigid plastic providing a snap action.

There are a few models so far:

1. a ziptie seatpost mount for a Cycliq Fly6 CE. It is designed for a 27.2mm diameter seatpost at 73 degrees.
2. a mount that should fit on a BarFly modular bar mount. This one is untested since I do not have a Fly12 CE, but I believe it uses the same basic mount as the Fly6 CE. Dimensions are for 20mm between M4 bolt holes.
3. alternate puck for 20mm between M3 bolt holes. Also not tested since I do not have a K-Edge mount, so the outside diameter may be completely wrong.
4. a CE to gopro adapter. Not yet built. Not recommended- the tabs were not strong enough on my build with mediocre layer adhesion.

These are as yet untested on the road or rougher surfaces. Even if they were, please use a tether anyway.

In the future I may just spin off variations as separate projects, though they will appear as remixes of this.

The included Fusion 360 file has the configuration for the seatpost mount. Roll the history marker back to the chamfer and unsupress the prior three features (chamfer and two extrusions) to get the BarFly mount. Roll back to the GoPro-named features and unsupress them for the GoPro mount tabs.

Most of the parameters are available in the "Solid... Modify... Change Parameters" menu item. This allows easy to change hole drilling (diameter, width, and countersinking), seatpost customization (seatpost angle and diameter), and also allows for ziptie bar mount by changing the seatpost angle to 90 degrees and diameter to whatever you want for your bar.

v3 of the seatpost mount has extra bumps inside to help the light snap into place better, and the zip tie holes are horizontal on the tops for bridging instead of counting on being able to printing a steep overhang. Designed to print mount side up, support only on the buildplate.

Seems to need to be printed right side up, otherwise the centering pegs shear right off because of the high force. I will try some other spring variations. "Touching buildplate" support placement option (at least in Cura) is optional. The ziptie holes can be a bit messy without support, but they don't need to be clean.

These were designed by trial and error with whatever ABS I had around. The parameters may need to be changed when using a more flexible material such as PETG. I do not suggest using PLA for long term, outdoor use.