Base plate for IKEA Ostana V1203

After moving to a new apartment I realized I had lost the original base plate of an IKEA Ostana V1203 lamp. The lamp is an old model, knowing IKEA it would probably be  possible to get a replacement part, but that would surely take longer and would be more complicated (and less fun), than designing and printing one myself,  so this is what I did. It worked perfectly for the first try.