the problem is that your laser bar will be more than 2 meters long when you consider that one laser is 0,8-1,0 cm thick.
i had this idea too but this is very unpractical and the gaps between the laserdots are too big.
an other possibility is a LED wall…
it looks like i found a solution for that problem.
i used a hotglue pistol to fix it.
I used only a little bit of hot glue and after that i used gaffa tape over it. the flicker was gone an not came back so far.
