FEP Roll Clean

Hi guys, newbie SLA printer here, and I've had failed prints, which stick to the FEP, and I figured, instead of scraping the fep to try and pop them off, I would come up with something that I could just roll the reservoir over, and pop them off for me.
I designed this for my Anycubic photon, although it may fit other SLA reservoir too.

So here it is, some assembly required, I bought a set of small paint rollers from the £1 store, because I needed the clean metal bar, and small rollers, and s