The structure and principle of the holder are eigenltich very good. Have longer looking for a holder for 3 fixing points ... Unfortunately, the manufacturing tolerances of the individual parts (especially the distance tube) are so high that it was not possible to mount the projector on a horizontal 100% in the balance ceiling parallel. I always had an angular rotation (from the left top of the screen to the upper right of the screen) of about 5 °. Maybe I got a "installation fasteners," he had no use for me, anyway.
Holder declined. 2 stars for the idea of this holder.
I have now decided on this:; redirect = true & ref_ = oh_aui_detailpage_o01_s01 There are of me a buy recommendation. The holder is indeed actually for 4 mounting points, you can use it but also for only 3 points.
