I've tried many methods of attaching a glass bed to my Creator Pro and none has proved particularly successful. One method which has had the most success is using 11mm swiss clips. The drawback with these has been stopping these from pinging off in the absence of a mounting hole as they'd have on a frame.
So, I was thinking around the problem and came up with this. Attach two clips to the bed with springs to the centre HBP mounting screw.
It only needs two and works very well indeed. I used 8mm diameter springs. The loop at the clip end is stretched over the flange on the clip, above the platform and below the bed and then just looped over the pillar. It doesn't even need a nut to hold it as it's under tension.
When the clips are unclipped, they even retract themselves neatly atop the platform.
NB - The right-angled "pin" on the end of the clip needs to be bent straight before use. This then doubles as an alignment guide for the inside of the spring - holding it straight. Simply stretch the spring over it as you fit it.
See my photos to how it's working.
I hope that this may prove helpful for others.
UPDATE (08/10/18): This has been working really well. The only annoyance is that it's fiddly to remove the clips. So, I have produced a simple pull tab which slides over the clip. It also includes a flange to stop the tab dropping down and (potentially) fouling the movement of the bed. See photos for fitting.
Print the tabs at fairly high resolution and slowly for accuracy as they're small. It will need to be ABS or PETG (or similar) to withstand the temperatures.
Slide over gently
Simply slide over the clip by flexing the flange. Once in place it should sit as shown in the photos.