These are the Ikea ledberg adapters, modified to fit my newly (as of Mar. 2023) bought ledberg.

Sources are tracked under https://github.com/nils-a/ledberg-cad

As I have not checked other remixes before I started remixing this, this is probably a duplicate of https://www.thingiverse.com/thing:4440834

Post-Printing

Fit cable channels

The channels for the cable/contacts should be 1.5mm by 1.5mm. However, after printing mine were significantly smaller, so I used a 1.5mm drill to widen them a bit.

I used 1.5mm² solid copper wire which I had lying around - these have a diameter of about 1.4mm, which fit my 1.5mm drill-holes perfect.