I use this queen cage https://www.thingiverse.com/thing:2805884 and add the egg holder and the hive holder. I also design a tool to produce the queen cell starter with 9 mm diameter (see pic). The egg holder is printed in TPU. The rest in PLA.
koenigzucht_eieraufnehmer_v3.stl | 60.1KB | |
koenigzucht_näpfchenstab_v1.stl | 377.3KB | |
koenigzucht_rahmenhalter_v4.stl | 50.9KB |