MDF is strong, why would you need to reinforce it?
Tambour (or rather finding them) sucks.
I started to make my own. I later abandoned it as I'd have to cut away too much of the dash inside.
I just used a sheet of 3/16 abs, cut it to size of the overall door, then cut it into slats, the tricky part was cutting out the tabs.
Then I glued it with spray adhesive to heavy canvas. It's quite strong, but doing the tabs by hand is a PITA.
I was going to have the slats made by a company that did CAD production. I believe it would have been under $40 USD to have them laser cut out of 1/4 abs.
Some pics of what I did, keep in mind, this was intended as a proof of concept.
not bad, i have ace harware 5 blocks away from my work, i will go there and check out what i can do for strips, thechnically you can even get away with wood pieces, but abs would be perfect contender
R. T. F. M
just looks like you needed to make those slats slimmer and maybe a bevel on the edges. i bet you could have made it retract along an upside down 'u' track w/o having to cut too much
yev, check out www.mcmaster.com you can buy thin strips of acrylic (probably abs as well) on the cheap. that would eliminate a lot of cutting on your part. another option is to get a sheet of material (maybe even carbon fiber) and send it to a laser cutting service and have them make clean uniform cuts that follow the profile that you need (if you wanted a 'notch' in the ends)
I could have done it from the side, but decided flip out doors would be better (which I still haven't done )