I made this nice version of a wall mount for my Dyson accessories after seeing this modular wall mount from fns720.
It is not based on the same rail standard and uses its own design.
The mounts are angled, so all varios Dyson Accessories can be mounted without interfering with the wall. You can combine several rails by a dogbone joint. I use to rails that are joint and hold by two screws on the wall.
The mount can be printed with supports, but then the fit to the rail could be hard to achieve. Instead you can print a support in a dissimilar material before hand (my wall mount is printed in PETG and I used PLA as support material, so it doesn't stick that much). The support is than put into the print before the bridging is done by pausing the print:
The author remixed this model.