Anyone who has run a resin printer without a flex plate knows the drill: prints bonded hard to the bare metal, and getting a flat base meant fighting suction at the tip of the plate. The maker here had no flex plate at all and needed to print something straight onto the build surface, with the base as flat as possible and suction forces pushed as far from the tip as they could get. Rather than buy hardware for a job they rarely need, they improvised, and honestly that seems like a sensible call for an occasional task.
The approach is refreshingly simple. A strip of adhesive tape went over the angled metal plate of the resin printer, and a translucent supported print was made directly on that tape instead of on bare metal. The maker admits to liking to test things, and this reads as exactly that kind of experiment: one cheap material standing in for an accessory the machine lacks.
The results look strong. The tape never let go of the plate during printing, and afterwards it was peeled away with black nitrile gloves on, pulling the print off with it. The part came free from its support raft in the process, and the maker reports it peels off easily. That release story is the part I find most convincing, since a substitute like this lives or dies on clean removal.
There are trade-offs, of course. The tape has to be swapped for every single print, which could get tedious on back-to-back jobs. It is also still unclear what the tape actually is: the maker calls it fita crepe and is not sure whether it counts as car tape or masking tape. And a suggested tweak, hanging the base layer about 1mm over the plate edge to form a removable tab, has not been tried yet, though the maker says they will give it a go.