This model was deliberately made chunky to handle the weight of the cordless vacuum with the battery and attachments.
Print it oriented with the back of the mount on the build plate , 15% infill with a 0.2mm layer height will work fine, and you'll need “snug” supports for the overhangs.
If attaching to a wooden wall then the top screw holes will fit two 3x35mm screws and the bottom will fit two 3X25mm screws, both screw ends will extend about 10mm past the back of the bracket. You may want to drill out the holes if they're a bit tight.
The author marked this model as their own original creation.