Wemos D1 R1 Mounting plate

thingiverse

I just needed a basic mounting plate that could accommodate standard M3 screws. To create it, I simply printed the part in PLA and then used an M3 screw with a bit of pressure to cut the thread directly into the printed mounting plate. However, one screw may require "turning down" the head slightly for use. I personally use a drill to mount the screw in the chuck and then hold the head up against a grinder until it's small enough. It's worth noting that this screw can have sharp edges, so be sure to smooth them out with sandpaper before inserting it into the Wemos to avoid damaging any leads.