A pair of DINrail adaptors to attach to PCB bases. The mounts are 1 unit width. One is for US spacing (1¼") the other is metric 25mm. They should be printed with all layers 0.2mm, solid infill, no brim. It is vital that you have no elephant foot. Before attaching a base, make sure spring works by inserting a screwdriver in the rectangle from the chamfered side and twist to activate.
The author marked this model as their own original creation.