The spring based oldham coupler on the ender 3 ng is interesting, but I don't see a bed slinger version of it. Now we do. Dimensions are a bit different so you probably need to mod this to use it.

The direction with longer gap flexes much easier than the other direction. Maybe elongate the other direction to make this work a bit better.

The base is 9mm tall so you might need to change that or find fitting strews.

The mounting hole is for m5, most people uses m4. So be aware.

I printed mine with petg, 235 degree, 0.2mm height, 30% fan, 15% gyroid infill, 2mm wall/top/bottom, rotated 45 degrees on the bed. I don't think the rotation matters.