Me wrote:
hello i live in the uk and own a contractors saw ,i have fitted a
sloping dust tray and have blanked the back of the saw .with some thin
mdf this works great till i want to tilt the sawblade,then i have to
remove the mdf.have any members found, or devised away of tilting the
sawblade with out removing the blanking piece.(ie with movable slats?)

tia frank
I was able to buy a scrap of magnetic sign material from the local sign
shop and cut it to fit the back and other openings that needed to be
covered. Its easy to remove and replace and flexible enough to give a
reasonably good seal around the uneven surfaces at the back of the saw.
My setup doesn't allow tilting without removing the cover but I
don't need to tilt the blade enough that it has become an issue for me.